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 132 (1.6 km) to the west of unincorporated Hawley. Its final highway junction in Oklahoma is with State Highway 11. From here, the highway continues due north, passing west of Sand Creek, Wakita, and Gibbon en route to Manchester. After passing through Manchester, the highway turns west along the Oklahoma–Kansas state line. The road then curves back to the north, fully entering the state of Kansas, and becomes K-179. SH-132 was first designated on July 14, 1956. Initially, the highway began at what was then SH-38 (present-day SH-45) in Carrier, proceeding north along its present-day route to end at US-64 east