LaSalle County Illinois ZIP Codes - Map and Full List

LaSalle County Illinois is covered by a total of 28 ZIP Codes. There are 12 ZIP Codes in LaSalle County that extend into adjacent counties (Bureau County, DeKalb County, Grundy County, Kendall County, Lee County, Livingston County, Marshall County, and Woodford County). Of the ZIP codes within or partially within LaSalle County there are 22 Standard ZIP Codes and 5 PO Box ZIP Codes.

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

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