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How & Where to Vote

Find out where to vote, how to vote, how to vote early, and how to vote by mail.

Register to Vote

Register to vote in Missouri, or learn more about voter ID & rights.

Election Details

Visit the Missouri election website or call (573) 751-2301 to learn more about your states voting details.

Have more questions about voting?

Read our voting FAQ

Important Dates - Presidential Primary

Primary Election Date
Primary Registration Deadline (by mail)
Primary Type

Voting Information for Missouri

Presidential Primaries

No party affiliation is required at registration to participate in a primary. See Missouri Republican Party or Democratic Party sites for more details.

Statewide Primaries

Some congressional seats, state offices and constitutional amendments may be included on the ballot.

Don’t miss your next election!

Don’t miss your next election! Missouri’s presidential primary election is March 10, 2020. Municipal elections will be held across the state on April 7th and the state primary will be held on August 4th.

Find Your Representatives What Do Your Representatives Stand For?

Early Voting + Absentee Voting

Early Voting Dates: Varies by County to March 9th

You can vote in person at your local election authority through March 9th at 5:00 p.m. before the election, using an absentee ballot.  Visit your local election authority’s website for start date.

To vote absentee by mail, first you’ll need to apply for an absentee ballot (click here) no later than Feb 26th at 5:00 pm. Then, when you complete your absentee ballot, it must be postmarked by the day before the election. If you have not voted in-person at your current address, you’ll need to submit a copy of your photo I.D. with address and signature with your ballot.

Whether it’s in person or by mail, you’ll need to give an excuse to vote by absentee ballot. Info here on what qualifies.

Request Absentee Ballot

Voter ID + Eligibility for Missouri

Do Voters Need ID?

  • Yes, voters need an ID
  • Multiple forms of ID accepted
  • First time voters need ID
  • Student IDs accepted

Voter Rights

Find out more about your rights in Missouri.


  • You may pre-register for All Elections
  • The pre-registration age is 17 and a half