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 72 SH-72 and US-64 joins it. Near Haskell, US-64 splits off SH-72, headed towards Tulsa. SH-72 continues northward to cross the Arkansas River, to Coweta. Oklahoma State Highway 72 State Highway 72 (abbreviated SH-72 or OK-72) is a state highway in the U.S. state of Oklahoma. It runs from north to south through the east-central part of the state, with a length of almost 33 miles (53 km). It does not have any lettered spur routes. SH-72 begins at U.S. Highway 266 west of Checotah and heads north, passing through Council Hill after 4 miles (6.4 km). Two miles south of