The 5th district is located in Central Oklahoma and includes Oklahoma, Pottawatomie and Seminole counties. The incumbent in 2016 was Republican Steve Russell, who had represented the district since 2014. He was elected with 60% of the vote in 2014 after having defeated five Republican candidates in the primary and Republican Patrice Douglas again in the Republican primary runoff with 59% of the vote. The district had a PVI of R+12.
