U.S. Federal Route 30 runs due east-west across Southern Benton County. This is the main east-west highway in this portion of the county. U.S. Rt. 30 does not pass through any towns in Benton County. U.S. Rt. 30 is multi-plexed in Benton County. U.S. Rt. 218, from the Benton/Linn County Line to near Van Horne.
Iowa State Route 201, near Norway. Iowa State Rotue 287, near Newhall. U.S. Rt. 218, near Van Horne. Iowa State Route 82, near Blairstown. Iowa State Route 200, near Keystone. Iowa State Route 131, near Irvine.