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 128 Oklahoma State Highway 128 State Highway 128 (abbreviated SH-128) is a state highway in Le Flore County, Oklahoma. It connects U.S. Highway 59 in Heavener to the Arkansas state line, where it becomes Arkansas Highway 28. It has no lettered spur routes. SH-128 was first added to the state highway system circa 1956. It has been realigned once, to better match up with roads across the Arkansas line. State Highway 128 begins at US-59/US-270 in Heavener. From the terminus south of downtown, the highway follows West Avenue I to East 1st Street, where it turns south, running parallel to US-59/US-270.