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 38 originally given to an alignment from SH-58 in Carrier south to US-60 and SH-15 (now US-412). The majority of this route had been reassigned to SH-45, with the remainder being added to SH-132, by 1963. The road that is now SH-38 was added to the state highway system in late 1961 to early 1962 as SH-35. When the SH-38 designation was freed up in 1962, SH-35 was renumbered to SH-38. No further changes to the route have occurred since then. Oklahoma State Highway 38 State Highway 38 (abbreviated SH-38) is a state highway in the U.S. state of Oklahoma. It