Business U.S. Federal Route 30 at Marshalltown, Iowa runs along a former portion of U.S. Rt. 30. This is on the southside of town. The current main-line U.S. Rt. 30 is on a expressway the runs south of Marshalltown. BUSN U.S. Rt. 30 passes through the following town in Marshall County. Marshalltown BUSN U.S. Rt. 30 is not multi-plexed in Marshall County. BUSN U.S. Rt. 30 intersects the following highways in Marshall County. U.S. Rt. 30, at Marshalltown. Iowa State Route 14, at Marshalltown. U.S. Rt. 30, at Marshalltown.
