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 171 Oklahoma State Highway 171 State Highway 171, abbreviated as SH-171, is a state highway in Cimarron County, Oklahoma, in the Oklahoma Panhandle. It runs for north and south through the eastern part of the county, connecting U.S. Highway 287 near the Oklahoma-Texas state line to US-56 in Keyes. The only other highway it intersects with is US-64/412/SH-3, three miles (5 km) south of Keyes. SH-171 has no lettered spur routes. SH-171 was established circa 1974 with its present-day routing and termini, and may have initially been numbered SH-170. It had assumed its current number by 1976. State Highway 171 begins