U.S. Federal Route 56 is an east-west highway in Southern and Central Johnson County. It runs from the Douglas/Johnson County Line to the Kansas/Missouri State Line, at Mission Woods. U.S. Rt. 56 passes through the following towns in Johnson County. Edgerton Gardner Olathe
Shawnee Overland Park Merriam Mission Fairway Mission Hills Mission Woods U.S. Rt. 56 is multi-plexed in Johnson County. Interstate 35, from Gardner to Merriam.