U.S. Federal Route 67 runs north-south through St. Louis County. It actually runs along one of the original metro by-passes that date back to pre-interstate era's. It spends most of it's time on Lindbergh Blvd. U.S. Rt. 67 passes through the following towns in St. Louis County. Sunset Hills
St. Ann Bridgeton
Florissant U.S. Rt. 67 is multi-plexed in St. Louis County. U.S. Rt. 61, from the Jefferson/St. Louis County Line to Frontenac.