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 136 Oklahoma State Highway 136 State Highway 136 (abbreviated SH-136) is a state highway in Oklahoma. It runs across Texas County in the Oklahoma Panhandle, from the adjoining state of Texas in the south to Kansas in the north. SH-136 does not have any letter-suffixed spur routes branching from it, however, it does have a truck route bypassing downtown Guymon. State Highway 136 was designated as such to match the number of the Texas state highway it connects to. SH-136 begins at the Texas state line about north of Gruver. It runs north to Guymon, where it joins US-64, US-412 and