The 2018 general election was held in the U.S. state of Oklahoma on November 6, 2018. All of Oklahoma's executive officers were up for election as well as the state's five seats in the United States House of Representatives, half of the 48 seats in the Oklahoma Senate and all 101 seats in the Oklahoma House, and five offices in each of Oklahoma's 77 counties. Voter turnout was 42.5% of the eligible population, a 12.6% increase over the 2014 midterms but still the third lowest in the nation.