Arkansas State Route 18 is a east-west highway in East-Central Jackson County. This highway runs along the northern portion in AR St Rt 18. AR St Rt 18 passes through the following towns in Jackson County. Newport
Branhces of AR St Rt 18 in Jackson County. WB AR St Rt 18/NB AR St Rt 37 at Grubbs. WB AR St Rt 18 east of Newport. WB AR St Rt 18 near the new U.S. Rt. 67 expressway. (Sept. 2003) WB AR St Rt 18 at the temporary intersection with U.S. Rt. 67. (Sept. 2003)