Arkansas State Route 18 runs north-south in Poinsett County. In Poinsett County, this highway runs breifly in the northwest corner. AR St Rt 18 passes through the following towns in Poinsett County. Pitts Uno
AR St Rt 18 is not multi-plexed in Poinsett County. AR St Rt 18 intersects the following highway in Poinsett County. Arkansas State Route 214, at Uno.
