Oklahoma's 5th congressional district is a congressional district in the U.S. state of Oklahoma. It borders all of the other congressional districts in the state except the 1st district. It is densely populated and covers almost all of Oklahoma County (except a small sliver located in the 4th district) and all of Pottawatomie and Seminole counties. Although it leans Republican, with a Cook PVI rating of R+7, it is still considered the least Republican district in the state. Principal cities in the district include Oklahoma City (the state capital), Edmond, Shawnee, and Seminole.