Missouri elections
8 House races on the ballot in 2026. Missouri sends 8 members to the House.
Senate
NO RACE THIS YEARNo Senate race in Missouri in 2026. Its seats are next up in 2028 and 2030.
House districts
8 DISTRICTSKEY = WITHIN 7 POINTS IN 2024 (2024 RESULT; THE PRESIDENTIAL VOTE WHERE LINES CHANGED)
Voting in Missouri
TODAY · SEP 27- OCT 7Registration deadline
Register by Wed Oct 7, 2026 (4th Wednesday before the election): in person by 5:00 p.m. (or the registration office's later normal closing time), by mail with the form postmarked by Oct 7, or online (the SOS gives no separate online cutoff time). No same-day registration.
SOURCE ↗ - OCT 20Early in-person voting opensSOURCE ↗
- OCT 21Last day to request a mail ballot
Request deadline is a received deadline by 5:00 p.m.. In-person application allowed until 2026-11-02. Return: received-by deadline 2026-11-03; a postmark does not extend it.
SOURCE ↗ - NOV 2Early in-person voting endsSOURCE ↗
- NOV 3Last day for mail ballots to arrive
Must be received by the local election authority by the close of polls, 7:00 p.m. Tue Nov 3, 2026 (polls open 6 a.m.-7 p.m.). Returned only by the voter in person, in person by a relative within the second degree, by mail or registered carrier; drop boxes are prohibited. In-person absentee voting/applications at the election authority until 5:00 p.m. Mon Nov 2.
SOURCE ↗ - NOV 3Election Day