U.S. Federal Route 129 runs shortly in the extreme western tip of Swain County. U.S. Rt. 129 does not pass through any towns in Swain County. U.S. Rt. 129 is not multi-plexed in Swain County. U.S. Rt. 129 intersects the following highways in Swain County. North Carolina State Route 28, near Tapoco.
A county line marker on NB U.S. Rt. 129. NB U.S. Rt. 129 in Western Swain County. Grade warning sign at the North Carolina/Tennessee State Line on SB U.S. Rt. 129.