OKLAHOMA
Primary Election
June 1, 2018: Primary Election Registration Date
June 26, 2018 : Primary Election Date
Mixed Primary*
Democratic congressional and state primaries: mixed
Republican congressional and state primaries: closed
Democratic Presidential primary: mixed
Republican Presidential primary: closed
Voters may or may not choose to affiliate with a political party, however, affiliation with a party is required to vote in Republican primary elections. Independent voters may vote in the Democratic primaries.
General Election
October 12, 2018: General Election Registration Date
November 6, 2018: General Election Date
Municipal/Local Elections
https://www.okc.gov/departments/city-clerk/elections
Early Voting/Same Day Voting Information
No