Oklahoma County, Oklahoma Oklahoma County, Oklahoma Oklahoma County is a county located in the central part of the U.S. state of Oklahoma. As of the 2010 census, the population was 718,633, making it the most populous county in Oklahoma. The county seat is Oklahoma City, the state capital. Oklahoma County is at the heart of the Oklahoma City Metropolitan Statistical Area. Oklahoma County is one of seven counties in the United States to share the same name as the state it is located in (the other six counties are Arkansas County, Hawaii County, Idaho County, Iowa County, New York County (known commonly as
Oklahoma State Highway 39 in 1968 or 1969, when SH-99 was rerouted to bypass Konawa, and SH-39 was extended east of town to end at the present junction. No changes have been made since. SH-39 once had one spur route, SH-39B. It ran along what is now May Avenue from SH-39's junction with SH-59 to SH-74B east of Cole, Oklahoma. Oklahoma State Highway 39 State Highway 39, abbreviated as SH-39, is a state highway in the U.S. state of Oklahoma. It is in length. It runs east–west through the central part of the state, beginning at unincorporated Tabler, east of Chickasha, and ending east