| Monday 1 February 2016 | *Iowa Precinct Caucuses1 |
| Tuesday 9 February 2016 | *New Hampshire Primary1 |
| Saturday 20 February 2016 | *Nevada Precinct Viability Caucuses1 |
| Saturday 27 February 2016 | *South Carolina Primary1 |
| Tuesday 1 March 2016 | *Alabama Primary1 *Arkansas Primary1 *American Samoa Territorial Caucus1 *Colorado Precinct Caucus1 *Georgia Primary1 *Massachusetts Primary1 *Minnesota Precinct Caucuses1 *Oklahoma Primary1 *Tennessee Primary1 *Texas Primary1 *Virginia Primary1 *Vermont Primary1 |
| Tuesday 1 March - Tuesday 8 March 2016 | *Democrats Abroad Global Party Run Primary1 |
| Saturday 5 March 2016 | *Kansas Local Unit Conventions1 *Louisiana Primary1 *Nebraska Precinct Caucuses1 |
| Sunday 6 March 2016 | *Maine Municipal Caucuses1 |
| Tuesday 8 March 2016 | *Michigan Primary1 *Mississippi Primary1 |
| Saturday 12 March 2016 | *Northern Marianas Convention1 |
| Tuesday 15 March 2016 | *Florida Primary1 *Illinois Primary1 *Missouri Primary1 *North Carolina Primary1 *Ohio Primary1 |
| Tuesday 22 March 2016 | *Arizona Primary1 *Idaho County Caucus1 *Utah Neighborhood Caucuses1 |
| Saturday 26 March 2016 | *Alaska Precinct / House District Caucuses1 *Hawaii Precinct Caucus1 *Washington Precinct Caucuses1 |
| Tuesday 5 April 2016 | *Wisconsin Primary1 |
| Saturday 9 April 2016 | *Wyoming County Caucuses1 |
| Tuesday 19 April 2016 | *New York Primary1 |
| Tuesday 26 April 2016 | *Connecticut Primary1 *Delaware Primary1 *Maryland Primary1 *Pennsylvania Primary1 *Rhode Island Primary1 |
| Tuesday 3 May 2016 | *Indiana Primary1 |
| Saturday 7 May 2016 | *Guam Caucus1 |
| Tuesday 10 May 2016 | *West Virginia Primary1 |
| Tuesday 17 May 2016 | *Kentucky Primary1 *Oregon Primary1 |
| Saturday 4 June 2016 | *Virgin Islands District Caucuses1 |
| Sunday 5 June 2016 | *Puerto Rico Primary1 |
| Tuesday 7 June 2016 | *California Primary1 *Montana Primary1 *North Dakota Legislative District Caucuses1 *New Jersey Primary1 *New Mexico Primary1 *South Dakota Primary1 |
| Tuesday 14 June 2016 | *District of Columbia Primary1 |