Iowa State Route 330 is a four-lane highway with at-grade intersection from near Marshalltown to the Jasper/Marshall County Line. North of U.S. Rt. 30 to Iowa State Route 14 this is a two lane highway. IA St Rt 330 passes through the following town in Marshall County. Albion IA St Rt 330 is not multi-plexed in Marshall County. IA St Rt 330 intersects the following highways in Marshall County. U.S. Rt. 30, near Marshalltown.
