Complete List of House Polls Used
Below we have a list of all the House polls used on this site. Only nonpartisan polls are used; polls taken by pollsters working for one of the parties are intentionally omitted as they tend to be more "fun with numbers" exercises rather than attempts to gauge public opinion.
The date given below in column 2 is when the poll ended. The poll length is also given. The polls for each state are sorted in descending order of their midpoints. Incumbents are denoted by asterisks.
The data are also available as plain text and in .csv format for use with Excel. In the latter, the first column is the day number of the midpoint (Jan. 1, 2008 = day 1.0) and the second is the poll length in days.
The site also has a page describing the House races, including brief descriptions of the situation, the names and photos of the candidates, and links to their campaign pages, Wikipedia entries, and state parties.
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-01 | (Unopposed) | 00% | Jo Bonner* | 83% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-01 | (Unopposed) | 00% | Jo Bonner* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| AL-01 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-02 | Bobby Bright* | 49% | Martha Roby | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-02 | Bobby Bright* | 50% | Martha Roby | 50% | Feb 01 | Feb 01 | Tossup (1% diff in | ||
| AL-02 | Democrat | 50% | Republican | 49% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-03 | Steve Segrest | 41% | Mike Rogers* | 59% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-03 | Steve Segrest | 45% | Mike Rogers* | 54% | Feb 01 | Feb 01 | GOP (R+9) | ||
| AL-03 | Democrat | 47% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-04 | (Unopposed) | 00% | Robert Aderholt* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-04 | (Unopposed) | 00% | Robert Aderholt* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| AL-04 | Democrat | 25% | Republican | 75% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-05 | Steve Raby | 42% | Mo Brooks | 58% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-05 | Steve Raby | 44% | Mo Brooks | 56% | Feb 01 | Feb 01 | GOP (open R+12) | ||
| AL-05 | Democrat | 48% | Republican | 52% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-06 | (Unopposed) | 00% | Spencer Bachus* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-06 | (Unopposed) | 00% | Spencer Bachus* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| AL-06 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-07 | Terri Sewell | 72% | Don Chamberlain | 28% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-07 | Terri Sewell | 59% | Don Chamberlain | 41% | Feb 01 | Feb 01 | Dem (open D+18) | ||
| AL-07 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AK-AL | Harry Crawford | 31% | Don Young* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| AK-AL | Harry Crawford | 32% | Don Young* | 65% | Sep 23 | Sep 27 | Ivan Moore | ||
| AK-AL | Harry Crawford | 34% | Don Young* | 49% | Aug 28 | Aug 28 | PPP | ||
| AK-AL | Harry Crawford | 43% | Don Young* | 56% | Feb 01 | Feb 01 | GOP (since 1973) | ||
| AK-AL | Democrat | 45% | Republican | 50% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-01 | Ann Kirkpatrick* | 44% | Paul Gosar | 50% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-01 | Ann Kirkpatrick* | 39% | Paul Gosar | 46% | Sep 28 | Sep 30 | Penn Schoen Berland | ||
| AZ-01 | Ann Kirkpatrick* | 50% | Paul Gosar | 50% | Feb 01 | Feb 01 | Tossup | ||
| AZ-01 | Democrat | 56% | Republican | 40% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-02 | John Thrasher | 31% | Trent Franks* | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-02 | John Thrasher | 37% | Trent Franks* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| AZ-02 | Democrat | 37% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-03 | Jon Hulburd | 41% | Ben Quayle | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-03 | Jon Hulburd | 45% | Ben Quayle | 54% | Feb 01 | Feb 01 | GOP (open R+9) | ||
| AZ-03 | Democrat | 42% | Republican | 54% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-04 | Ed Pastor* | 65% | Janet Contreras | 29% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-04 | Ed Pastor* | 72% | Janet Contreras | 21% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| AZ-04 | Democrat | 72% | Republican | 21% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-05 | Harry Mitchell* | 43% | David Schweikert | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-05 | Harry Mitchell* | 50% | David Schweikert | 50% | Feb 01 | Feb 01 | Tossup | ||
| AZ-05 | Democrat | 53% | Republican | 44% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-06 | Rebecca Schneider | 29% | Jeff Flake* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-06 | Rebecca Schneider | 35% | Jeff Flake* | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| AZ-06 | Democrat | 35% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-07 | Raul Grijalva* | 49% | Ruth McClung | 45% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-07 | Raul Grijalva* | 63% | Ruth McClung | 33% | Feb 01 | Feb 01 | Dem (63% in 2008) | ||
| AZ-07 | Democrat | 63% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-08 | Gabrielle Giffords* | 49% | Jesse Kelly | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-08 | Gabrielle Giffords* | 50% | Jesse Kelly | 50% | Feb 01 | Feb 01 | Tossup | ||
| AZ-08 | Democrat | 55% | Republican | 43% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AR-01 | Chad Causey | 43% | Rick Crawford | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| AR-01 | Chad Causey | 46% | Rick Crawford | 54% | Feb 01 | Feb 01 | GOP (open R+8) | ||
| AR-01 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AR-02 | Joyce Elliott | 38% | Tim Griffin | 58% | Nov 09 | Nov 09 | 2010 Election | ||
| AR-02 | Joyce Elliott | 47% | Tim Griffin | 52% | Feb 01 | Feb 01 | GOP (open R+5) | ||
| AR-02 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AR-03 | David Whitaker | 28% | Steve Womack | 72% | Nov 09 | Nov 09 | 2010 Election | ||
| AR-03 | David Whitaker | 31% | Steve Womack | 55% | Aug 25 | Aug 25 | TalkBusiness | ||
| AR-03 | David Whitaker | 42% | Steve Womack | 58% | Feb 01 | Feb 01 | GOP (open R+16) | ||
| AR-03 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AR-04 | Mike Ross* | 58% | Beth Anne Rankin | 40% | Nov 09 | Nov 09 | 2010 Election | ||
| AR-04 | Mike Ross* | 49% | Beth Anne Rankin | 31% | Aug 26 | Aug 26 | TalkBusiness | ||
| AR-04 | Mike Ross* | 50% | Beth Anne Rankin | 50% | Feb 01 | Feb 01 | Tossup | ||
| AR-04 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-01 | Mike Thompson* | 63% | Loren Hanks | 32% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-01 | Mike Thompson* | 68% | Loren Hanks | 24% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| CA-01 | Democrat | 68% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-02 | Jim Reed | 43% | Wally Herger* | 57% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-02 | Jim Reed | 44% | Wally Herger* | 55% | Feb 01 | Feb 01 | GOP (since 1988) | ||
| CA-02 | Democrat | 43% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-03 | Ami Bera | 43% | Dan Lungren* | 50% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-03 | Ami Bera | 38% | Dan Lungren* | 46% | Sep 18 | Sep 19 | PPP | ||
| CA-03 | Ami Bera | 47% | Dan Lungren* | 53% | Feb 01 | Feb 01 | GOP (since 1998) | ||
| CA-03 | Democrat | 44% | Republican | 50% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-04 | Clint Curtis | 31% | Tom McClintock* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-04 | Clint Curtis | 50% | Tom McClintock* | 50% | Feb 01 | Feb 01 | Tossup (1% diff in | ||
| CA-04 | Democrat | 49% | Republican | 50% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-05 | Doris Matsui* | 72% | Paul Smith | 26% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-05 | Doris Matsui* | 74% | Paul Smith | 21% | Feb 01 | Feb 01 | Dem (74% in 2008) | ||
| CA-05 | Democrat | 74% | Republican | 21% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-06 | Lynn Woolsey* | 65% | Jim Judd | 30% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-06 | Lynn Woolsey* | 72% | Jim Judd | 24% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| CA-06 | Democrat | 72% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-07 | George Miller* | 67% | Rick Tubbs | 33% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-07 | George Miller* | 73% | Rick Tubbs | 21% | Feb 01 | Feb 01 | Dem (73% in 2008) | ||
| CA-07 | Democrat | 73% | Republican | 21% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-08 | Nancy Pelosi* | 80% | John Dennis | 15% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-08 | Nancy Pelosi* | 72% | John Dennis | 09% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| CA-08 | Democrat | 72% | Republican | 09% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-09 | Barbara Lee* | 83% | Gerald Hashimoto | 12% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-09 | Barbara Lee* | 86% | Gerald Hashimoto | 10% | Feb 01 | Feb 01 | Dem (86% in 2008) | ||
| CA-09 | Democrat | 86% | Republican | 10% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-10 | John Garamendi* | 58% | Gary Clift | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-10 | John Garamendi* | 55% | Gary Clift | 44% | Feb 01 | Feb 01 | Dem (D+11) | ||
| CA-10 | John Garamendi* | 53% | Gary Clift | 43% | Jan 01 | Jan 01 | Special election November 2009 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-11 | Jerry McNerney* | 49% | David Harmer | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-11 | Jerry McNerney* | 50% | David Harmer | 50% | Feb 01 | Feb 01 | Tossup | ||
| CA-11 | Democrat | 55% | Republican | 45% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-12 | Jackie Speier* | 75% | Mike Moloney | 23% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-12 | Jackie Speier* | 75% | Mike Moloney | 19% | Feb 01 | Feb 01 | Dem (75% in 2008) | ||
| CA-12 | Democrat | 75% | Republican | 19% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-13 | Pete Stark* | 72% | Forest Baker | 28% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-13 | Pete Stark* | 76% | Forest Baker | 24% | Feb 01 | Feb 01 | Dem (76% in 2008) | ||
| CA-13 | Democrat | 76% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-14 | Anna Eshoo* | 68% | Dave Chapman | 29% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-14 | Anna Eshoo* | 70% | Dave Chapman | 22% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| CA-14 | Democrat | 70% | Republican | 22% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-15 | Mike Honda* | 67% | Scott Kirkland | 33% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-15 | Mike Honda* | 72% | Scott Kirkland | 23% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| CA-15 | Democrat | 72% | Republican | 23% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-16 | Zoe Lofgren* | 67% | Daniel Sahagun | 25% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-16 | Zoe Lofgren* | 71% | Daniel Sahagun | 24% | Feb 01 | Feb 01 | Dem (71% in 2008) | ||
| CA-16 | Democrat | 71% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-17 | Sam Farr* | 66% | Jeff Taylor | 30% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-17 | Sam Farr* | 75% | Jeff Taylor | 25% | Feb 01 | Feb 01 | Dem (75% in 2008) | ||
| CA-17 | Democrat | 75% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-18 | Dennis Cardoza* | 58% | Michael Berryhill | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-18 | Dennis Cardoza* | 50% | Michael Berryhill | 50% | Feb 01 | Feb 01 | Tossup | ||
| CA-18 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-19 | Lorraine Goodwin | 35% | Jeff Denham | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-19 | Lorraine Goodwin | 30% | Jeff Denham | 63% | Sep 10 | Sep 13 | SurveyUSA | ||
| CA-19 | Lorraine Goodwin | 45% | Jeff Denham | 54% | Feb 01 | Feb 01 | GOP (open R+9) | ||
| CA-19 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-20 | Jim Costa* | 50% | Andy Vidak | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-20 | Jim Costa* | 48% | Andy Vidak | 46% | Sep 10 | Sep 12 | SurveyUSA | ||
| CA-20 | Jim Costa* | 73% | Andy Vidak | 27% | Feb 01 | Feb 01 | Dem (73% in 2008) | ||
| CA-20 | Democrat | 73% | Republican | 27% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-21 | (Unopposed) | 00% | Devin Nunes* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-21 | (Unopposed) | 00% | Devin Nunes* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| CA-21 | Democrat | 32% | Republican | 68% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-22 | (Unopposed) | 00% | Kevin McCarthy* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-22 | (Unopposed) | 00% | Kevin McCarthy* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| CA-22 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-23 | Lois Capps* | 57% | Tom Watson | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-23 | Lois Capps* | 68% | Tom Watson | 32% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| CA-23 | Democrat | 68% | Republican | 32% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-24 | Timothy Allison | 40% | Elton Gallegly* | 60% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-24 | Timothy Allison | 42% | Elton Gallegly* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| CA-24 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-25 | Jackie Conaway | 38% | Howard McKeon* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-25 | Jackie Conaway | 47% | Howard McKeon* | 53% | Feb 01 | Feb 01 | GOP (since 1992) | ||
| CA-25 | Democrat | 43% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-26 | Russ Warner | 37% | David Dreier* | 54% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-26 | Russ Warner | 48% | David Dreier* | 51% | Feb 01 | Feb 01 | GOP (since 1980) | ||
| CA-26 | Democrat | 41% | Republican | 52% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-27 | Brad Sherman* | 65% | Mark Reed | 35% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-27 | Brad Sherman* | 69% | Mark Reed | 25% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| CA-27 | Democrat | 69% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-28 | Howard Berman* | 70% | Merlin Froyd | 22% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-28 | Howard Berman* | 61% | Merlin Froyd | 38% | Feb 01 | Feb 01 | Dem (since 1982) | ||
| CA-28 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-29 | Adam Schiff* | 65% | John Colbert | 32% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-29 | Adam Schiff* | 70% | John Colbert | 26% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| CA-29 | Democrat | 70% | Republican | 26% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-30 | Henry Waxman* | 65% | Chuck Wilkerson | 32% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-30 | Henry Waxman* | 59% | Chuck Wilkerson | 41% | Feb 01 | Feb 01 | Dem (since 1974) | ||
| CA-30 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-31 | Xavier Becerra* | 84% | Stephen Smith | 16% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-31 | Xavier Becerra* | 64% | Stephen Smith | 35% | Feb 01 | Feb 01 | Dem (since 1992) | ||
| CA-31 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-32 | Judy Chu* | 71% | Ed Schmerling | 29% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-32 | Judy Chu* | 62% | Ed Schmerling | 33% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| CA-32 | Judy Chu* | 62% | Ed Schmerling | 33% | Jan 01 | Jan 01 | Special election May 2009 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-33 | Karen Bass | 86% | James Andion | 14% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-33 | Karen Bass | 67% | James Andion | 32% | Feb 01 | Feb 01 | Dem (open D+35) | ||
| CA-33 | Democrat | 88% | Republican | 12% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-34 | Lucille Roybal-Allard* | 77% | Wayne Miller | 23% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-34 | Lucille Roybal-Allard* | 77% | Wayne Miller | 23% | Feb 01 | Feb 01 | Dem (77% in 2008) | ||
| CA-34 | Democrat | 77% | Republican | 23% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-35 | Maxine Waters* | 79% | Bruce Brown | 21% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-35 | Maxine Waters* | 83% | Bruce Brown | 13% | Feb 01 | Feb 01 | Dem (83% in 2008) | ||
| CA-35 | Democrat | 83% | Republican | 13% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-36 | Jane Harman* | 60% | Mattie Fein | 35% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-36 | Jane Harman* | 69% | Mattie Fein | 31% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| CA-36 | Democrat | 69% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-37 | Laura Richardson* | 69% | Star Parker | 23% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-37 | Laura Richardson* | 63% | Star Parker | 37% | Feb 01 | Feb 01 | Dem (D+26) | ||
| CA-37 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-38 | Grace Napolitano* | 74% | Robert Vaughn | 26% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-38 | Grace Napolitano* | 59% | Robert Vaughn | 41% | Feb 01 | Feb 01 | Dem (since 1998) | ||
| CA-38 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-39 | Linda Sanchez* | 64% | Larry Andre | 32% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-39 | Linda Sanchez* | 70% | Larry Andre | 30% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| CA-39 | Democrat | 70% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-40 | Christina Avalos | 33% | Ed Royce* | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-40 | Christina Avalos | 37% | Ed Royce* | 63% | Feb 01 | Feb 01 | GOP (63% in 2008) | ||
| CA-40 | Democrat | 37% | Republican | 63% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-41 | Pat Meagher | 37% | Jerry Lewis* | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-41 | Pat Meagher | 38% | Jerry Lewis* | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| CA-41 | Democrat | 38% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-42 | Michael Williamson | 32% | Gary Miller* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-42 | Michael Williamson | 40% | Gary Miller* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| CA-42 | Democrat | 40% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-43 | Joe Baca* | 65% | Scott Folkens | 35% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-43 | Joe Baca* | 68% | Scott Folkens | 32% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| CA-43 | Democrat | 68% | Republican | 32% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-44 | Bill Hedrick | 45% | Ken Calvert* | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-44 | Bill Hedrick | 38% | Ken Calvert* | 44% | Sep 24 | Sep 26 | PPP | ||
| CA-44 | Bill Hedrick | 50% | Ken Calvert* | 50% | Feb 01 | Feb 01 | Tossup (2% diff in | ||
| CA-44 | Democrat | 49% | Republican | 51% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-45 | Steve Pougnet | 42% | Mary Bono-Mack* | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-45 | Steve Pougnet | 48% | Mary Bono-Mack* | 51% | Feb 01 | Feb 01 | GOP (since 1998) | ||
| CA-45 | Democrat | 43% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-46 | Ken Arnold | 38% | Dana Rohrabacher* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-46 | Ken Arnold | 47% | Dana Rohrabacher* | 53% | Feb 01 | Feb 01 | GOP (since 1988) | ||
| CA-46 | Democrat | 43% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-47 | Loretta Sanchez* | 51% | Van Tran | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-47 | Loretta Sanchez* | 67% | Van Tran | 27% | Feb 01 | Feb 01 | Dem (67% in 2008) | ||
| CA-47 | Democrat | 67% | Republican | 27% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-48 | Beth Krom | 36% | John Campbell* | 60% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-48 | Beth Krom | 47% | John Campbell* | 53% | Feb 01 | Feb 01 | GOP (R+6) | ||
| CA-48 | Democrat | 41% | Republican | 55% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-49 | Howard Katz | 44% | Darrell Issa* | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-49 | Howard Katz | 38% | Darrell Issa* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| CA-49 | Democrat | 38% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-50 | Francine Busby | 39% | Brian Bilbray* | 57% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-50 | Francine Busby | 48% | Brian Bilbray* | 51% | Feb 01 | Feb 01 | GOP (R+3) | ||
| CA-50 | Democrat | 46% | Republican | 50% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-51 | Bob Filner* | 60% | Nick Popaditch | 40% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-51 | Bob Filner* | 72% | Nick Popaditch | 25% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| CA-51 | Democrat | 72% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-52 | Ray Lutz | 32% | Duncan Hunter* | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-52 | Ray Lutz | 45% | Duncan Hunter* | 54% | Feb 01 | Feb 01 | GOP (R+9) | ||
| CA-52 | Democrat | 39% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-53 | Susan Davis* | 62% | Michael Crimmins | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-53 | Susan Davis* | 69% | Michael Crimmins | 27% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| CA-53 | Democrat | 69% | Republican | 27% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CO-01 | Diana DeGette* | 68% | Mike Fallon | 29% | Nov 09 | Nov 09 | 2010 Election | ||
| CO-01 | Diana DeGette* | 72% | Mike Fallon | 24% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| CO-01 | Democrat | 72% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CO-02 | Jared Polis* | 57% | Stephen Bailey | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| CO-02 | Jared Polis* | 62% | Stephen Bailey | 34% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| CO-02 | Democrat | 62% | Republican | 34% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CO-03 | John Salazar* | 46% | Scott Tipton | 50% | Nov 09 | Nov 09 | 2010 Election | ||
| CO-03 | John Salazar* | 61% | Scott Tipton | 39% | Feb 01 | Feb 01 | Dem (61% in 2008) | ||
| CO-03 | Democrat | 61% | Republican | 39% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-04 | Betsy Markey* | 41% | Cory Gardner | 53% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-04 | Betsy Markey* | 41% | Cory Gardner | 44% | Sep 25 | Sep 27 | Penn Schoen Berland | ||
| CA-04 | Betsy Markey* | 50% | Cory Gardner | 50% | Feb 01 | Feb 01 | Tossup | ||
| CA-04 | Democrat | 56% | Republican | 44% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CO-05 | Kevin Bradley | 29% | Doug Lamborn* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| CO-05 | Kevin Bradley | 37% | Doug Lamborn* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| CO-05 | Democrat | 37% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CO-06 | John Flerlage | 31% | Mike Coffman* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| CO-06 | John Flerlage | 40% | Mike Coffman* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| CO-06 | Democrat | 40% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CO-07 | Ed Perlmutter* | 53% | Ryan Frazier | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| CO-07 | Ed Perlmutter* | 63% | Ryan Frazier | 37% | Feb 01 | Feb 01 | Dem (63% in 2008) | ||
| CO-07 | Democrat | 63% | Republican | 37% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CT-01 | John Larson* | 61% | Ann Brickley | 37% | Nov 09 | Nov 09 | 2010 Election | ||
| CT-01 | John Larson* | 72% | Ann Brickley | 26% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| CT-01 | Democrat | 72% | Republican | 26% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CT-02 | Joe Courtney* | 60% | Janet Peckinpaugh | 39% | Nov 09 | Nov 09 | 2010 Election | ||
| CT-02 | Joe Courtney* | 65% | Janet Peckinpaugh | 33% | Feb 01 | Feb 01 | Dem (65% in 2008) | ||
| CT-02 | Democrat | 65% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CT-03 | Rosa DeLauro* | 65% | Larry Labriola | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| CT-03 | Rosa DeLauro* | 77% | Larry Labriola | 20% | Feb 01 | Feb 01 | Dem (77% in 2008) | ||
| CT-03 | Democrat | 77% | Republican | 20% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CT-04 | Jim Himes* | 53% | Dan Debicella | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| CT-04 | Jim Himes* | 50% | Dan Debicella | 50% | Feb 01 | Feb 01 | Tossup | ||
| CT-04 | Democrat | 51% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CT-05 | Chris Murphy* | 54% | Sam Caligiuri | 46% | Nov 09 | Nov 09 | 2010 Election | ||
| CT-05 | Chris Murphy* | 59% | Sam Caligiuri | 39% | Feb 01 | Feb 01 | Dem (59% in 2008) | ||
| CT-05 | Democrat | 59% | Republican | 39% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| DE-AL | John Carney | 57% | Glen Urquhart | 41% | Nov 09 | Nov 09 | 2010 Election | ||
| DE-AL | John Carney | 51% | Glen Urquhart | 36% | Sep 27 | Oct 03 | Fairleigh Dickinson U. | ||
| DE-AL | John Carney | 48% | Glen Urquhart | 31% | Sep 16 | Sep 30 | U. of Delaware | ||
| DE-AL | John Carney | 48% | Glen Urquhart | 37% | Sep 11 | Sep 12 | PPP | ||
| DE-AL | John Carney | 53% | Glen Urquhart | 46% | Feb 01 | Feb 01 | Dem (open D+7) | ||
| DE-AL | Democrat | 38% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-01 | (Unopposed) | 00% | Jeff Miller* | 81% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-01 | (Unopposed) | 00% | Jeff Miller* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| FL-01 | Democrat | 30% | Republican | 70% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-02 | Allen Boyd* | 41% | Steve Southerland | 54% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-02 | Allen Boyd* | 62% | Steve Southerland | 38% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| FL-02 | Democrat | 62% | Republican | 38% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-03 | Corrine Brown* | 63% | Mike Yost | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-03 | Corrine Brown* | 59% | Mike Yost | 41% | Feb 01 | Feb 01 | Dem (since 1992) | ||
| FL-03 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-04 | (Unopposed) | 00% | Ander Crenshaw* | 77% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-04 | (Unopposed) | 00% | Ander Crenshaw* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| FL-04 | Democrat | 35% | Republican | 65% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-05 | Jim Piccillo | 33% | Rich Nugent | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-05 | Jim Piccillo | 45% | Rich Nugent | 54% | Feb 01 | Feb 01 | GOP (open R+9) | ||
| FL-05 | Democrat | 39% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-06 | (Unopposed) | 00% | Cliff Stearns* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-06 | (Unopposed) | 00% | Cliff Stearns* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| FL-06 | Democrat | 39% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-07 | Heather Beaven | 31% | John Mica* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-07 | Heather Beaven | 38% | John Mica* | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| FL-07 | Democrat | 38% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-08 | Alan Grayson* | 38% | Dan Webster | 56% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-08 | Alan Grayson* | 38% | Dan Webster | 46% | Jul 15 | Jul 15 | Zogby | ||
| FL-08 | Alan Grayson* | 50% | Dan Webster | 50% | Feb 01 | Feb 01 | Tossup | ||
| FL-08 | Democrat | 52% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-09 | Anita de Palma | 29% | Gus Bilirakis* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-09 | Anita de Palma | 36% | Gus Bilirakis* | 63% | Feb 01 | Feb 01 | GOP (63% in 2008) | ||
| FL-09 | Democrat | 36% | Republican | 63% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-10 | Charlie Justice | 34% | Bill Young* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-10 | Charlie Justice | 39% | Bill Young* | 61% | Feb 01 | Feb 01 | GOP (61% in 2008) | ||
| FL-10 | Democrat | 39% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-11 | Kathy Castor* | 60% | Mike Prendergast | 40% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-11 | Kathy Castor* | 70% | Mike Prendergast | 30% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| FL-11 | Democrat | 70% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-12 | Lori Edwards | 41% | Dennis Ross | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-12 | Lori Edwards | 47% | Dennis Ross | 53% | Feb 01 | Feb 01 | GOP (open R+6) | ||
| FL-12 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-13 | James Golden | 31% | Vern Buchanan* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-13 | James Golden | 47% | Vern Buchanan* | 53% | Feb 01 | Feb 01 | GOP (R+6) | ||
| FL-13 | Democrat | 38% | Republican | 55% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-14 | James Roach | 28% | Connie Mack* | 68% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-14 | James Roach | 25% | Connie Mack* | 59% | Feb 01 | Feb 01 | GOP (59% in 2008) | ||
| FL-14 | Democrat | 25% | Republican | 59% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-15 | Shannon Roberts | 35% | Bill Posey* | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-15 | Shannon Roberts | 47% | Bill Posey* | 53% | Feb 01 | Feb 01 | GOP (R+6) | ||
| FL-15 | Democrat | 42% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-16 | Jim Horn | 33% | Tom Rooney* | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-16 | Jim Horn | 40% | Tom Rooney* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| FL-16 | Democrat | 40% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-17 | Frederica Wilson | 86% | (Unopposed) | 00% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-17 | Frederica Wilson | 99% | (Unopposed) | 00% | Feb 01 | Feb 01 | Dem (unopposed) | ||
| FL-17 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-18 | Rolando Banciella | 31% | Ileana Ros-Lehtinen* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-18 | Rolando Banciella | 42% | Ileana Ros-Lehtinen* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| FL-18 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-19 | Ted Deutch* | 63% | Joe Budd | 37% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-19 | Ted Deutch* | 62% | Joe Budd | 27% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-20 | Debbie Wasserman Schultz* | 60% | Karen Harrington | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-20 | Debbie Wasserman Schultz* | 56% | Karen Harrington | 43% | Feb 01 | Feb 01 | Dem (D+13) | ||
| FL-20 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-21 | (Unopposed) | 00% | Mario Diaz-Balart | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-21 | (Unopposed) | 00% | Mario Diaz-Balart | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| FL-21 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-22 | Ron Klein* | 46% | Allen West | 54% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-22 | Ron Klein* | 50% | Allen West | 50% | Feb 01 | Feb 01 | Tossup | ||
| FL-22 | Democrat | 55% | Republican | 45% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-23 | Alcee Hastings* | 79% | Bernard Sansaricq | 21% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-23 | Alcee Hastings* | 82% | Bernard Sansaricq | 18% | Feb 01 | Feb 01 | Dem (82% in 2008) | ||
| FL-23 | Democrat | 82% | Republican | 18% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-24 | Suzanne Kosmas* | 40% | Sandy Adams | 60% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-24 | Suzanne Kosmas* | 50% | Sandy Adams | 50% | Feb 01 | Feb 01 | Tossup | ||
| FL-24 | Democrat | 57% | Republican | 41% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-25 | Joe Garcia | 42% | David Rivera | 53% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-25 | Joe Garcia | 47% | David Rivera | 52% | Feb 01 | Feb 01 | GOP (open R+5) | ||
| FL-25 | Democrat | 47% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-01 | Oscar Harris | 28% | Jack Kingston* | 72% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-01 | Oscar Harris | 33% | Jack Kingston* | 67% | Feb 01 | Feb 01 | GOP (67% in 2008) | ||
| GA-01 | Democrat | 33% | Republican | 67% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-02 | Sanford Bishop* | 51% | Mike Keown | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-02 | Sanford Bishop* | 69% | Mike Keown | 31% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| GA-02 | Democrat | 69% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-03 | Frank Saunders | 31% | Lynn Westmoreland* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-03 | Frank Saunders | 34% | Lynn Westmoreland* | 66% | Feb 01 | Feb 01 | GOP (66% in 2008) | ||
| GA-03 | Democrat | 34% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-04 | Hank Johnson* | 75% | Liz Carter | 25% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-04 | Hank Johnson* | 62% | Liz Carter | 38% | Feb 01 | Feb 01 | Dem (D+24) | ||
| GA-04 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-05 | John Lewis* | 74% | Fenn Little | 26% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-05 | John Lewis* | 63% | Fenn Little | 37% | Feb 01 | Feb 01 | Dem (since 1986) | ||
| GA-05 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-06 | (Unopposed) | 00% | Tom Price* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-06 | (Unopposed) | 00% | Tom Price* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| GA-06 | Democrat | 31% | Republican | 69% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-07 | Doug Heckman | 33% | Rob Woodall | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-07 | Doug Heckman | 42% | Rob Woodall | 58% | Feb 01 | Feb 01 | GOP (open R+16) | ||
| GA-07 | Democrat | 38% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-08 | Jim Marshall* | 47% | Austin Scott | 53% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-08 | Jim Marshall* | 50% | Austin Scott | 50% | Feb 01 | Feb 01 | Tossup | ||
| GA-08 | Democrat | 57% | Republican | 43% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-09 | (Unopposed) | 00% | Tom Graves* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-09 | (Unopposed) | 00% | Tom Graves* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| GA-09 | Democrat | 24% | Republican | 76% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-10 | Russell Edwards | 33% | Paul Broun* | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-10 | Russell Edwards | 39% | Paul Broun* | 61% | Feb 01 | Feb 01 | GOP (61% in 2008) | ||
| GA-10 | Democrat | 39% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-11 | (Unopposed) | 00% | Phil Gingrey* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-11 | (Unopposed) | 00% | Phil Gingrey* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| GA-11 | Democrat | 32% | Republican | 68% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-12 | John Barrow* | 57% | Raymond McKinney | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-12 | John Barrow* | 66% | Raymond McKinney | 34% | Feb 01 | Feb 01 | Dem (66% in 2008) | ||
| GA-12 | Democrat | 66% | Republican | 34% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-13 | David Scott* | 69% | Mike Crane | 31% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-13 | David Scott* | 69% | Mike Crane | 31% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| GA-13 | Democrat | 69% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| HI-01 | Colleen Hanabusa | 53% | Charles Djou* | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| HI-01 | Colleen Hanabusa | 55% | Charles Djou* | 44% | Feb 01 | Feb 01 | Dem (D+11) | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| HI-02 | Mazie Hirono* | 72% | John Willoughby | 25% | Nov 09 | Nov 09 | 2010 Election | ||
| HI-02 | Mazie Hirono* | 76% | John Willoughby | 20% | Feb 01 | Feb 01 | Dem (76% in 2008) | ||
| HI-02 | Democrat | 76% | Republican | 20% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| ID-01 | Walt Minnick* | 41% | Raul Labrador | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| ID-01 | Walt Minnick* | 46% | Raul Labrador | 36% | Sep 13 | Sep 15 | Mason Dixon | ||
| ID-01 | Walt Minnick* | 50% | Raul Labrador | 50% | Feb 01 | Feb 01 | Tossup (2% diff in | ||
| ID-01 | Democrat | 51% | Republican | 49% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| ID-02 | Mike Crawford | 24% | Mike Simpson* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| ID-02 | Mike Crawford | 23% | Mike Simpson* | 51% | Sep 13 | Sep 15 | Mason Dixon | ||
| ID-02 | Mike Crawford | 29% | Mike Simpson* | 71% | Feb 01 | Feb 01 | GOP (71% in 2008) | ||
| ID-02 | Democrat | 29% | Republican | 71% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-01 | Bobby Rush* | 80% | Ray Wardingley | 16% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-01 | Bobby Rush* | 86% | Ray Wardingley | 14% | Feb 01 | Feb 01 | Dem (86% in 2008) | ||
| IL-01 | Democrat | 86% | Republican | 14% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-02 | Jesse Jackson Jr.* | 80% | Isaac Hayes | 14% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-02 | Jesse Jackson Jr.* | 89% | Isaac Hayes | 11% | Feb 01 | Feb 01 | Dem (89% in 2008) | ||
| IL-02 | Democrat | 89% | Republican | 11% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-03 | Dan Lipinski* | 70% | Michael Bendas | 24% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-03 | Dan Lipinski* | 73% | Michael Bendas | 22% | Feb 01 | Feb 01 | Dem (73% in 2008) | ||
| IL-03 | Democrat | 73% | Republican | 22% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-04 | Luis Gutierrez* | 77% | Israel Vasquez | 14% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-04 | Luis Gutierrez* | 81% | Israel Vasquez | 11% | Feb 01 | Feb 01 | Dem (81% in 2008) | ||
| IL-04 | Democrat | 81% | Republican | 11% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-05 | Michael Quigley* | 71% | David Ratowitz | 25% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-05 | Michael Quigley* | 69% | David Ratowitz | 24% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| IL-05 | Michael Quigley* | 69% | David Ratowitz | 24% | Jan 01 | Jan 01 | Special election April 2009 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-06 | Benjamin Lowe | 36% | Peter Roskam* | 64% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-06 | Benjamin Lowe | 42% | Peter Roskam* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| IL-06 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-07 | Danny Davis* | 81% | Mark Weiman | 16% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-07 | Danny Davis* | 85% | Mark Weiman | 15% | Feb 01 | Feb 01 | Dem (85% in 2008) | ||
| IL-07 | Democrat | 85% | Republican | 15% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-08 | Melissa Bean* | 48% | Joe Walsh | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-08 | Melissa Bean* | 60% | Joe Walsh | 40% | Feb 01 | Feb 01 | Dem (60% in 2008) | ||
| IL-08 | Democrat | 60% | Republican | 40% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-09 | Jan Schakowsky* | 66% | Joel Pollak | 32% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-09 | Jan Schakowsky* | 75% | Joel Pollak | 22% | Feb 01 | Feb 01 | Dem (75% in 2008) | ||
| IL-09 | Democrat | 75% | Republican | 22% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-10 | Daniel Seals | 49% | Robert Dold | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-10 | Daniel Seals | 53% | Robert Dold | 47% | Feb 01 | Feb 01 | Dem (open D+6) | ||
| IL-10 | Democrat | 46% | Republican | 54% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-11 | Debbie Halvorson* | 43% | Adam Kinzinger | 57% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-11 | Debbie Halvorson* | 31% | Adam Kinzinger | 49% | Sep 28 | Sep 30 | Penn Schoen Berland | ||
| IL-11 | Debbie Halvorson* | 58% | Adam Kinzinger | 35% | Feb 01 | Feb 01 | Dem (58% in 2008) | ||
| IL-11 | Democrat | 58% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-12 | Jerry Costello* | 60% | Teri Newman | 37% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-12 | Jerry Costello* | 71% | Teri Newman | 25% | Feb 01 | Feb 01 | Dem (71% in 2008) | ||
| IL-12 | Democrat | 71% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-13 | Scott Harper | 36% | Judy Biggert* | 64% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-13 | Scott Harper | 49% | Judy Biggert* | 50% | Feb 01 | Feb 01 | GOP (since 1998) | ||
| IL-13 | Democrat | 44% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-14 | Bill Foster* | 45% | Randy Hultgren | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-14 | Bill Foster* | 50% | Randy Hultgren | 50% | Feb 01 | Feb 01 | Tossup | ||
| IL-14 | Democrat | 57% | Republican | 43% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-15 | David Gill | 36% | Tim Johnson* | 64% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-15 | David Gill | 36% | Tim Johnson* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| IL-15 | Democrat | 36% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-16 | George Gaulrapp | 31% | Donald Manzullo* | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-16 | George Gaulrapp | 36% | Donald Manzullo* | 61% | Feb 01 | Feb 01 | GOP (61% in 2008) | ||
| IL-16 | Democrat | 36% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-17 | Phil Hare* | 43% | Bobby Schilling | 53% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-17 | Phil Hare* | 50% | Bobby Schilling | 50% | Feb 01 | Feb 01 | Tossup | ||
| IL-17 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-18 | D.K. Hirner | 26% | Aaron Schock* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-18 | D.K. Hirner | 38% | Aaron Schock* | 59% | Feb 01 | Feb 01 | GOP (59% in 2008) | ||
| IL-18 | Democrat | 38% | Republican | 59% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-19 | Tim Bagwell | 29% | John Shimkus* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-19 | Tim Bagwell | 33% | John Shimkus* | 65% | Feb 01 | Feb 01 | GOP (65% in 2008) | ||
| IL-19 | Democrat | 33% | Republican | 65% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-01 | Pete Visclosky* | 59% | Mark Leyva | 39% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-01 | Pete Visclosky* | 71% | Mark Leyva | 27% | Feb 01 | Feb 01 | Dem (71% in 2008) | ||
| IN-01 | Democrat | 71% | Republican | 27% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-02 | Joe Donnelly* | 48% | Jackie Walorski | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-02 | Joe Donnelly* | 48% | Jackie Walorski | 39% | Sep 29 | Oct 01 | EPIC MRA | ||
| IN-02 | Joe Donnelly* | 52% | Jackie Walorski | 35% | Aug 03 | Aug 03 | Polling Company | ||
| IN-02 | Joe Donnelly* | 67% | Jackie Walorski | 30% | Feb 01 | Feb 01 | Dem (67% in 2008) | ||
| IN-02 | Democrat | 67% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-03 | Tom Hayhurst | 33% | Marlin Stutzman | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-03 | Tom Hayhurst | 43% | Marlin Stutzman | 57% | Feb 01 | Feb 01 | GOP (open R+14) | ||
| IN-03 | Democrat | 40% | Republican | 55% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-04 | David Sanders | 26% | Todd Rokita | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-04 | David Sanders | 43% | Todd Rokita | 57% | Feb 01 | Feb 01 | GOP (open R+14) | ||
| IN-04 | Democrat | 40% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-05 | Tim Crawford | 25% | Dan Burton* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-05 | Tim Crawford | 34% | Dan Burton* | 66% | Feb 01 | Feb 01 | GOP (66% in 2008) | ||
| IN-05 | Democrat | 34% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-06 | Barry Welsh | 30% | Mike Pence* | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-06 | Barry Welsh | 33% | Mike Pence* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| IN-06 | Democrat | 33% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-07 | Andre Carson* | 59% | Marvin Scott | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-07 | Andre Carson* | 65% | Marvin Scott | 35% | Feb 01 | Feb 01 | Dem (65% in 2008) | ||
| IN-07 | Democrat | 65% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-08 | Trent VanHaaften | 37% | Larry Bucshon | 58% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-08 | Trent VanHaaften | 46% | Larry Bucshon | 54% | Feb 01 | Feb 01 | GOP (open R+8) | ||
| IN-08 | Democrat | 65% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-09 | Baron Hill* | 42% | Todd Young | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-09 | Baron Hill* | 58% | Todd Young | 38% | Feb 01 | Feb 01 | Dem (58% in 2008) | ||
| IN-09 | Democrat | 58% | Republican | 38% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IA-01 | Bruce Braley* | 49% | Benjamin Lange | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| IA-01 | Bruce Braley* | 64% | Benjamin Lange | 36% | Feb 01 | Feb 01 | Dem (64% in 2008) | ||
| IA-01 | Democrat | 64% | Republican | 36% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IA-02 | David Loebsack* | 51% | Mariannette Miller-Meeks | 46% | Nov 09 | Nov 09 | 2010 Election | ||
| IA-02 | David Loebsack* | 50% | Mariannette Miller-Meeks | 50% | Feb 01 | Feb 01 | Tossup | ||
| IA-02 | Democrat | 57% | Republican | 39% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IA-03 | Leonard Boswell* | 51% | Brad Zaun | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| IA-03 | Leonard Boswell* | 50% | Brad Zaun | 49% | Feb 01 | Feb 01 | Dem (since 1996) | ||
| IA-03 | Democrat | 56% | Republican | 42% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IA-04 | Bill Maske | 32% | Tom Latham* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| IA-04 | Bill Maske | 39% | Tom Latham* | 61% | Feb 01 | Feb 01 | GOP (61% in 2008) | ||
| IA-04 | Democrat | 39% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IA-05 | Matthew Campbell | 32% | Steve King* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| IA-05 | Matthew Campbell | 37% | Steve King* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| IA-05 | Democrat | 37% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KS-01 | Alan Jilka | 23% | Tim Huelskamp | 74% | Nov 09 | Nov 09 | 2010 Election | ||
| KS-01 | Alan Jilka | 23% | Tim Huelskamp | 65% | Aug 08 | Aug 08 | SurveyUSA | ||
| KS-01 | Alan Jilka | 38% | Tim Huelskamp | 61% | Feb 01 | Feb 01 | GOP (open R+23) | ||
| KS-01 | Democrat | 13% | Republican | 82% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KS-02 | Cheryl Hudspeth | 32% | Lynn Jenkins* | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| KS-02 | Cheryl Hudspeth | 45% | Lynn Jenkins* | 54% | Feb 01 | Feb 01 | GOP (R+9) | ||
| KS-02 | Democrat | 46% | Republican | 51% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KS-03 | Stephene Moore | 38% | Kevin Yoder | 59% | Nov 09 | Nov 09 | 2010 Election | ||
| KS-03 | Stephene Moore | 50% | Kevin Yoder | 50% | Feb 01 | Feb 01 | Tossup | ||
| KS-03 | Democrat | 56% | Republican | 40% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KS-04 | Raj Goyle | 36% | Mike Pompeo | 59% | Nov 09 | Nov 09 | 2010 Election | ||
| KS-04 | Raj Goyle | 40% | Mike Pompeo | 50% | Sep 14 | Sep 15 | SurveyUSA | ||
| KS-04 | Raj Goyle | 42% | Mike Pompeo | 49% | Aug 11 | Aug 11 | SurveyUSA | ||
| KS-04 | Raj Goyle | 43% | Mike Pompeo | 57% | Feb 01 | Feb 01 | GOP (open R+14) | ||
| KS-04 | Democrat | 32% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KY-01 | Charles Kendall Hatchett | 29% | Ed Whitfield* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| KY-01 | Charles Kendall Hatchett | 36% | Ed Whitfield* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| KY-01 | Democrat | 36% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KY-02 | Ed Marksberry | 32% | Brett Guthrie* | 68% | Nov 09 | Nov 09 | 2010 Election | ||
| KY-02 | Ed Marksberry | 42% | Brett Guthrie* | 57% | Feb 01 | Feb 01 | GOP (R+15) | ||
| KY-02 | Democrat | 47% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KY-03 | John Yarmuth* | 55% | Todd Lally | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| KY-03 | John Yarmuth* | 53% | Todd Lally | 30% | Sep 20 | Sep 21 | Braun Research | ||
| KY-03 | John Yarmuth* | 47% | Todd Lally | 45% | Sep 01 | Sep 01 | SurveyUSA | ||
| KY-03 | John Yarmuth* | 52% | Todd Lally | 29% | Aug 09 | Aug 10 | Braun Research | ||
| KY-03 | John Yarmuth* | 59% | Todd Lally | 41% | Feb 01 | Feb 01 | Dem (59% in 2008) | ||
| KY-03 | Democrat | 59% | Republican | 41% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KY-04 | John Waltz | 31% | Geoff Davis* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| KY-04 | John Waltz | 37% | Geoff Davis* | 63% | Feb 01 | Feb 01 | GOP (63% in 2008) | ||
| KY-04 | Democrat | 37% | Republican | 63% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KY-05 | Jim Holbert | 23% | Hal Rogers* | 77% | Nov 09 | Nov 09 | 2010 Election | ||
| KY-05 | Jim Holbert | 42% | Hal Rogers* | 58% | Feb 01 | Feb 01 | GOP (since 1980) | ||
| KY-05 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KY-06 | Ben Chandler* | 50% | Andy Barr | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| KY-06 | Ben Chandler* | 51% | Andy Barr | 37% | Sep 21 | Sep 22 | Braun Research | ||
| KY-06 | Ben Chandler* | 65% | Andy Barr | 35% | Feb 01 | Feb 01 | Dem (65% in 2008) | ||
| KY-06 | Democrat | 65% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-01 | Myron Katz | 19% | Steve Scalise* | 79% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-01 | Myron Katz | 34% | Steve Scalise* | 66% | Feb 01 | Feb 01 | GOP (66% in 2008) | ||
| LA-01 | Democrat | 34% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-02 | Cedric Richmond | 65% | Joseph Cao* | 33% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-02 | Cedric Richmond | 49% | Joseph Cao* | 38% | Oct 02 | Oct 03 | PPP | ||
| LA-02 | Cedric Richmond | 62% | Joseph Cao* | 37% | Feb 01 | Feb 01 | Dem (D+25) | ||
| LA-02 | Democrat | 47% | Republican | 50% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-03 | Ravi Sangisetty | 36% | Jeff Landry | 64% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-03 | Ravi Sangisetty | 44% | Jeff Landry | 56% | Feb 01 | Feb 01 | GOP (open R+12) | ||
| LA-03 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-04 | David Melville | 32% | John Fleming* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-04 | David Melville | 50% | John Fleming* | 50% | Feb 01 | Feb 01 | Tossup (1% diff in | ||
| LA-04 | Democrat | 47% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-05 | (Unopposed) | 00% | Rodney Alexander | 79% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-05 | (Unopposed) | 43% | Rodney Alexander | 57% | Feb 01 | Feb 01 | GOP (R+14) | ||
| LA-05 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-06 | Merritt McDonald | 34% | Bill Cassidy* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-06 | Merritt McDonald | 45% | Bill Cassidy* | 55% | Feb 01 | Feb 01 | GOP (R+10) | ||
| LA-06 | Democrat | 40% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-07 | (Unopposed) | 00% | Charles Boustany | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-07 | (Unopposed) | 34% | Charles Boustany | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| LA-07 | Democrat | 34% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| ME-01 | Chellie Pingree* | 57% | Dean Scontras | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| ME-01 | Chellie Pingree* | 54% | Dean Scontras | 26% | Sep 27 | Sep 27 | Critical Insights | ||
| ME-01 | Chellie Pingree* | 53% | Dean Scontras | 29% | Sep 13 | Sep 13 | Critical Insights | ||
| ME-01 | Chellie Pingree* | 54% | Dean Scontras | 46% | Feb 01 | Feb 01 | Dem (D+8) | ||
| ME-01 | Democrat | 55% | Republican | 45% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| ME-02 | Mike Michaud* | 55% | Jason Levesque | 45% | Nov 09 | Nov 09 | 2010 Election | ||
| ME-02 | Mike Michaud* | 44% | Jason Levesque | 32% | Sep 27 | Sep 27 | Critical Insights | ||
| ME-02 | Mike Michaud* | 48% | Jason Levesque | 28% | Sep 13 | Sep 13 | Critical Insights | ||
| ME-02 | Mike Michaud* | 67% | Jason Levesque | 33% | Feb 01 | Feb 01 | Dem (67% in 2008) | ||
| ME-02 | Democrat | 67% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-01 | Frank Kratovil* | 41% | Andy Harris | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-01 | Frank Kratovil* | 40% | Andy Harris | 43% | Sep 28 | Sep 30 | Penn Schoen Berland | ||
| MD-01 | Frank Kratovil* | 50% | Andy Harris | 50% | Feb 01 | Feb 01 | Tossup (1% diff in | ||
| MD-01 | Democrat | 50% | Republican | 49% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-02 | Dutch Ruppersberger* | 64% | Marcelo Cardarelli | 33% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-02 | Dutch Ruppersberger* | 72% | Marcelo Cardarelli | 25% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| MD-02 | Democrat | 72% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-03 | John Sarbanes* | 61% | Jim Wilhelm | 36% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-03 | John Sarbanes* | 70% | Jim Wilhelm | 30% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| MD-03 | Democrat | 70% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-04 | Donna Edwards* | 84% | Robert Broadus | 16% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-04 | Donna Edwards* | 86% | Robert Broadus | 13% | Feb 01 | Feb 01 | Dem (86% in 2008) | ||
| MD-04 | Democrat | 86% | Republican | 13% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-05 | Steny Hoyer* | 64% | Charles Lollar | 35% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-05 | Steny Hoyer* | 74% | Charles Lollar | 24% | Feb 01 | Feb 01 | Dem (74% in 2008) | ||
| MD-05 | Democrat | 74% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-06 | Andrew Duck | 33% | Roscoe Bartlett* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-06 | Andrew Duck | 39% | Roscoe Bartlett* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| MD-06 | Democrat | 39% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-07 | Elijah Cummings* | 75% | Frank Mirabile | 23% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-07 | Elijah Cummings* | 80% | Frank Mirabile | 18% | Feb 01 | Feb 01 | Dem (80% in 2008) | ||
| MD-07 | Democrat | 80% | Republican | 18% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-08 | Chris Van Hollen* | 73% | Michael Philips | 25% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-08 | Chris Van Hollen* | 75% | Michael Philips | 22% | Feb 01 | Feb 01 | Dem (75% in 2008) | ||
| MD-08 | Democrat | 75% | Republican | 22% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-01 | John Olver* | 60% | William Gunn | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-01 | John Olver* | 73% | William Gunn | 27% | Feb 01 | Feb 01 | Dem (73% in 2008) | ||
| MA-01 | Democrat | 73% | Republican | 27% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-02 | Richard Neal* | 57% | Tom Wesley | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-02 | Richard Neal* | 54% | Tom Wesley | 45% | Feb 01 | Feb 01 | Dem (since 1988) | ||
| MA-02 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-03 | Jim McGovern* | 56% | Marty Lamb | 39% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-03 | Jim McGovern* | 54% | Marty Lamb | 45% | Feb 01 | Feb 01 | Dem (since 1996) | ||
| MA-03 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-04 | Barney Frank* | 54% | Sean Bielat | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-04 | Barney Frank* | 68% | Sean Bielat | 25% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| MA-04 | Democrat | 68% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-05 | Niki Tsongas* | 55% | Jon Golnik | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-05 | Niki Tsongas* | 54% | Jon Golnik | 46% | Feb 01 | Feb 01 | Dem (D+8) | ||
| MA-05 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-06 | John Tierney* | 57% | Bill Hudak | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-06 | John Tierney* | 70% | Bill Hudak | 30% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| MA-06 | Democrat | 70% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-07 | Ed Markey* | 66% | Gerry Dembrowski | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-07 | Ed Markey* | 76% | Gerry Dembrowski | 24% | Feb 01 | Feb 01 | Dem (76% in 2008) | ||
| MA-07 | Democrat | 76% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-08 | Mike Capuano** | 100% | (Unopposed) | 00% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-08 | Mike Capuano** | 66% | (Unopposed) | 34% | Feb 01 | Feb 01 | Dem (since 1998) | ||
| MA-08 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-09 | Stephen Lynch* | 68% | Vernon Harrison | 26% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-09 | Stephen Lynch* | 55% | Vernon Harrison | 44% | Feb 01 | Feb 01 | Dem (D+11) | ||
| MA-09 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-10 | Bill Keating | 47% | Jeff Perry | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-10 | Bill Keating | 52% | Jeff Perry | 47% | Feb 01 | Feb 01 | Dem (open D+5) | ||
| MA-10 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-01 | Gary McDowell | 41% | Dan Benishek | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-01 | Gary McDowell | 50% | Dan Benishek | 50% | Feb 01 | Feb 01 | Tossup | ||
| MI-01 | Democrat | 65% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-02 | Fred Johnson | 32% | Bill Huizenga | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-02 | Fred Johnson | 46% | Bill Huizenga | 53% | Feb 01 | Feb 01 | GOP (open R+7) | ||
| MI-02 | Democrat | 35% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-03 | Pat Miles | 37% | Justin Amash | 60% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-03 | Pat Miles | 47% | Justin Amash | 53% | Feb 01 | Feb 01 | GOP (open R+6) | ||
| MI-03 | Democrat | 35% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-04 | Jerry Campbell | 31% | Dave Camp* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-04 | Jerry Campbell | 36% | Dave Camp* | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| MI-04 | Democrat | 36% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-05 | Dale Kildee* | 53% | John Kuipec | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-05 | Dale Kildee* | 70% | John Kuipec | 27% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| MI-05 | Democrat | 70% | Republican | 27% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-06 | Don Cooney | ||||||||