Iowa State Route 330 runs in northwest Jasper County. This runs from the intersection with U.S. Rt. 65/IA St Rt 117 to the Jasper/Marshall County Line. IA St Rt 330 does not pass through any towns in Jasper County. IA St Rt 330 is not multi-plexed in Jasper County. IA St Rt 330 intersects the following highways in Jasper County. U.S. Rt. 65, near Mingo. Iowa State Route 117, near Mingo.
A SB guide marker. SB IA St Rt 330 near U.S. Rt. 65/IA St Rt 117. A junction marker on NB IA St Rt 117. A guide marker on NB IA St Rt 117. The southern end marker.
