Arkansas Highway 59 is a north–south state highway in Northwest Arkansas. The route runs 93.24 miles (150.06 km) from Arkansas Highway 22 in Barling north to the Missouri state line through Van Buren, the county seat of Crawford County. Highway 59 parallels US 59 (in Oklahoma) between Siloam Springs and Fort Smith. Since US 59 goes through Arkansas, AR 59 is the only Arkansas state highway to share its numbering with a federal highway that goes through Arkansas.