St. Louis primary election
March 4, 2025
- Election type: primary
- Region: St. Louis, Missouri
- Description: St. Louis primary election
Visit Ballotpedia.org(Opens in a new window) to learn what you're voting on this election.
Key deadlines in Missouri
Voter registration deadlines
- Online: 27 days before Election Day
- By mail: Postmarked by 27 days before Election Day
- In person: 27 days before Election Day
Absentee ballot request deadlines
- By mail: Received by 13 days before Election Day
- In person: 1 day before Election Day
Absentee ballot return deadlines
- By mail: Received by Election Day
- In person: Received by Election Day
Voting dates
- Early voting starts: 14 days before Election Day
- Early voting ends: 1 day before Election Day
- Election Day: March 4, 2025