Grundy County Illinois ZIP Codes - Map and Full List

Grundy County Illinois is covered by a total of 15 ZIP Codes. There are 10 ZIP Codes in Grundy County that extend into adjacent counties (Kankakee County, Kendall County, LaSalle County, Livingston County, and Will County). Of the ZIP codes within or partially within Grundy County there are 13 Standard ZIP Codes and 1 PO Box ZIP Codes.

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Grundy County Illinois 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 Grundy County and can be turned on and off. Each type of postal code can also be turned on and off.

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