This table lists all the Democratic nominating events for 2020 along with the number of pledged delegates (who get to vote on the first ballot) and total delegates. If there is more than one ballot, the last column gives the total number of delegates who can vote on ballots after the first one. The numbers are from the Green Papers Website. The unassigned delegate is a DNC member who will be chosen later on, just to make the total number of delegates an odd number.
| State | Event | Date | Dels. |
| Alabama | Primary | Tuesday, March 3 | 52 |
| Alaska | Primary | Saturday, April 4 | 15 |
| American Samoa | Caucus | Tuesday, March 3 | 6 |
| Arizona | Primary | Tuesday, March 17 | 67 |
| Arkansas | Primary | Tuesday, March 3 | 31 |
| California | Primary | Tuesday, March 3 | 415 |
| Colorado | Primary | Tuesday, March 3 | 67 |
| Connecticut | Primary | Tuesday, April 28 | 60 |
| Delaware | Primary | Tuesday, April 28 | 21 |
| Democrats Abroad | Primary | Tuesday, March 3-10 | 13 |
| District of Columbia | Primary | Tuesday, June | 20 |
| Florida | Primary | Tuesday, March 17 | 219 |
| Georgia | Primary | Tuesday, March 24 | 105 |
| Guam | Caucus | Saturday, May 2 | 6 |
| Hawaii | Primary | Saturday, April 4 | 24 |
| Idaho | Primary | Tuesday, March 10 | 20 |
| Illinois | Primary | Tuesday, March 17 | 155 |
| Indiana | Primary | Tuesday, May 5 | 82 |
| Iowa | Caucus | Monday, February 3 | 41 |
| Kansas | Primary | Saturday, May 2 | 39 |
| Kentucky | Primary | Tuesday, May 19 | 54 |
| Louisiana | Primary | Saturday, April 4 | 54 |
| Maine | Primary | Tuesday, March 3 | 24 |
| Maryland | Primary | Tuesday, April 28 | 96 |
| Massachusetts | Primary | Tuesday, March 3 | 91 |
| Michigan | Primary | Tuesday, March 10 | 125 |
| Minnesota | Primary | Tuesday, March 3 | 75 |
| Mississippi | Primary | Tuesday, March 10 | 36 |
| Missouri | Primary | Tuesday, March 10 | 68 |
| Montana | Primary | Tuesday, June 2 | 19 |
| Nebraska | Primary | Tuesday, May 12 | 29 |
| Nevada | Caucus | Saturday, February 22 | 36 |
| New Hampshire | Primary | Tuesday, February 11 | 24 |
| New Jersey | Primary | Tuesday, June 2 | 126 |
| New Mexico | Primary | Tuesday, June 2 | 34 |
| New York | Primary | Tuesday, April 28 | 274 |
| North Carolina | Primary | Tuesday, March 3 | 110 |
| North Dakota | Caucus | Tuesday, March 10 | 14 |
| Northern Marianas | Convention | Saturday, March 14 | 6 |
| Ohio | Primary | Tuesday, March 17 | 136 |
| Oklahoma | Primary | Tuesday, March 3 | 37 |
| Oregon | Primary | Tuesday, May 19 | 61 |
| Pennsylvania | Primary | Tuesday, April 28 | 186 |
| Puerto Rico | Primary | Sunday, March 29 | 51 |
| Rhode Island | Primary | Tuesday, April 28 | 26 |
| South Carolina | Primary | Saturday, February 29 | 54 |
| South Dakota | Primary | Tuesday, June 2 | 16 |
| Tennessee | Primary | Tuesday, March 3 | 64 |
| Texas | Primary | Tuesday, March 3 | 228 |
| Utah | Primary | Tuesday, March 3 | 29 |
| Vermont | Primary | Tuesday, March 3 | 16 |
| Virgin Islands | Caucus | Saturday, June 6 | 7 |
| Virginia | Primary | Tuesday, March 3 | 99 |
| Washington | Primary | Tuesday, March 10 | 89 |
| West Virginia | Primary | Tuesday, May 12 | 28 |
| Wisconsin | Primary | Tuesday, April 7 | 84 |
| Wyoming | Caucus | Saturday, April 4 | 14 |
| Unassigned | 1 |