U.S. Federal Route 231 runs virtualy north-south through Allen County. It provides access to Bowling Green for Allen County. U.S. Rt. 231 passes through the following towns in Allen County. Scottsville West Fork Halfway U.S. Rt. 231 is multi-plexed in Allen County. U.S. Rt. 31E, from the Kentucky/Tennessee State Line to Scottsville
Kentucky Secondary State Route 1332, from West Fork to Halfway. U.S. Rt. 231 intersects the following highways in Allen County Kentucky State Route 482, near Adolphus. Kentucky Secondary State Route 1147, near Petroleum. Kentucky State Route 100, near Scottsville. U.S. Rt. 31E, at Scottsville. Kentucky State Route 980, at Scottsville. Kentucky Secondary State Route 3241, at Scottsville. Kentucky Secondary State Route 1332, near West Fork. Kentucky Secondary State Route 1332, near Halfway. Kentucky State Route 240, near Allen Springs.
