U.S. Federal Route 36 runs briefly in Northwestern Ralls County. This highway is upgraded to be a expressway. U.S. Rt. 36 does not pass through any towns in Ralls County. U.S. Rt. 36 is multi-plexed in Ralls County. U.S. Rt. 24, from the Marion/Ralls County Line to near Monroe City.
Branches of U.S. Rt. 36 in Ralls County. WB U.S. Rt. 24/36 near the Marion/Ralls County Line. A junction marker on EB U.S. Rt. 24. A BGS on WB U.S. Rt. 24/BUSN U.S. Rt. 36. EB U.S. Rt. 36 at the Marion/Ralls County Line at Monroe City.