Marshall County Iowa ZIP Codes - Map and Full List

Marshall County Iowa is covered by a total of 19 ZIP Codes. There are 13 ZIP Codes in Marshall County that extend into adjacent counties (Grundy County, Hardin County, Jasper County, Poweshiek County, Story County, and Tama County). Of the ZIP codes within or partially within Marshall County there are 17 Standard ZIP Codes and 2 PO Box ZIP Codes.

Map List Related

Marshall County Iowa ZIP Code Map

Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Marshall County and can be turned on and off. Each type of postal code can also be turned on and off.

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