Arkansas State Route 84 runs east-west across Hot Springs County. This is one of the longest surface highways in the county. AR St Rt 84 passes through the following towns in Hot Spring County. Oak Grove Bismarck Marcus Point Cedar AR St Rt 84 is multi-plexed in Hot Spring County. Arkansas State Route 128, near Bismarck. AR St Rt 84 intersects the following highways in Hot Spring County. Interstate 30, near Malvern. Arkansas State Route 171, near Malvern. Arkansas State Route 128, near Bismarck. Arkansas State Route 128, near Bismarck. Arkansas State Route 7, at Bismarck. Arkansas State Route 347, at Point Cedar.
