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Missouri 2026 midterms: ballot, races, and key dates

Missouri’s August 25, 2026 certification lists state auditor and a Missouri Supreme Court contest for the November 3, 2026 general election.

Last updated: October 18, 2026. Unofficial information. Confirm with your official election office (Missouri Secretary of State — Go Vote Missouri).

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Official election office

  • Missouri is on Central Time.
  • A registration deadline was not printed in the August 25, 2026 certification read October 18, 2026. The Secretary of State publishes the calendar.
  • An early-voting period was not printed in the August 25, 2026 certification read October 18, 2026. The Secretary of State publishes the calendar.
  • A mail-ballot deadline was not printed in the August 25, 2026 certification read October 18, 2026. The Secretary of State publishes the calendar.
  • Identification rules are published by the Missouri Secretary of State.

Missouri Secretary of State — Go Vote Missouri

Key 2026 general election dates

Dates below are paraphrased from the official pages linked on each line and were last checked against those pages on October 18, 2026. They can change. Missouri Secretary of State — Go Vote Missouri publishes the current calendar. County voting hours vary. “Passed,” “Deadline today,” “In progress,” and “Upcoming” markers use only the date on the device. They ignore cutoff times and the state’s time zone, so a deadline marked for today may already have closed. The marker is not an official cutoff.

Voter registration

The August 25, 2026 certification of candidates read on October 18, 2026 does not print this deadline. The Missouri Secretary of State publishes the calendar.

Early voting

The August 25, 2026 certification of candidates read on October 18, 2026 does not print this deadline. The Missouri Secretary of State publishes the calendar.

Mail-ballot request

The August 25, 2026 certification of candidates read on October 18, 2026 does not print this deadline. The Missouri Secretary of State publishes the calendar.

Mail-ballot return

The August 25, 2026 certification of candidates read on October 18, 2026 does not print this deadline. The Missouri Secretary of State publishes the calendar.

Compare with other states · Missouri Secretary of State — Go Vote Missouri

Questions about the Missouri 2026 midterms

Short answers from the offices and race guides already linked on this page. Registration and voting rules are published by Missouri Secretary of State — Go Vote Missouri.

What is on the Missouri ballot in the 2026 midterms?
The Missouri Secretary of State’s certification for the November 3, 2026 general election, dated August 25, 2026, certifies State Auditor for the Republican, Democratic, and Libertarian parties, and certifies U.S. Representative, State Senator, and State Representative by district. A separate judicial certificate in the same booklet lists a contest for the Missouri Supreme Court and Missouri Court of Appeals contests by district. The partisan certificate does not include a Governor heading or a U.S. Senator heading. That certification booklet certifies candidates and party emblems. It does not list a statewide ballot measure.
Where are official Missouri sample-ballot and registration pages?
Check Your Voter Registration is the official sample-ballot page. Missouri Secretary of State — Go Vote Missouri publishes registration and election rules. Vote.gov: Missouri registration information. Map the Midterms does not look up voter records, issue sample ballots, or request mail ballots.
Which Map the Midterms race guides cover Missouri?
Map the Midterms does not yet publish a Missouri race guide. Contests for an address are on the official sample ballot.
When is Election Day 2026 in Missouri?
The 2026 U.S. midterm general election is Tuesday, November 3, 2026. The August 25, 2026 certification of candidates read on October 18, 2026 does not print registration, early-voting, or mail-ballot deadlines. The Missouri Secretary of State publishes the current calendar. Missouri is on Central Time.
Is Map the Midterms an official Missouri election website?
No. Map the Midterms is an informational site operated by Joshua Israel Ventures LLC, a Florida limited liability company. It is not a government, secretary of state, or county election website. The official election office for Missouri is Missouri Secretary of State — Go Vote Missouri. Registration, sample ballots, and voting rules are published there and on Vote.gov: Missouri registration information.

Missouri Secretary of State — Go Vote Missouri · Check Your Voter Registration · Vote.gov: Missouri registration information · Sample ballot structure