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Voting in Oklahoma
Oklahoma held its 2026 primary elections on June 16. The runoff for the primary elections will be held on August 25. The runoff election will also have two statewide ballot measures on the ballot. The general election will be held on November 3.
When to Vote
Dates you shouldn’t miss.
Primary Election Dates
All primary elections in Oklahoma are partially closed. Each political party may decide whether voters who are not affiliated with their party can vote in the primary election or not.
In 2026, both the Republican party and Democratic party will be holding closed primaries, meaning only voters affiliated with each party may participate in that party's primary election.
Aug 25, 2026
Primary election day
Jul 31, 2026
Voter registration deadline (in person, online, by mail)
Aug 10, 2026
Vote by mail request deadline (by mail)
Aug 10, 2026
Vote by mail request deadline (in person)
Aug 25, 2026
Ballot return deadline (must be received)
Aug 20, 2026–Aug 22, 2026
Early voting
General Election Dates
Plan to Vote
Make a plan to vote
How to Vote
How to vote in Oklahoma
In Person
Early Voting
Vote by Mail
Voter ID