Williamson County, Illinois ZIP Codes

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ZIP Codes in Williamson County with Associated Cities & Towns

Williamson County, IL - Standard ZIP Codes
62890 | 62896 | 62901 | 62902 | 62917 | 62918 | 62922 | 62924 | 62933 | 62935 | 62939 | 62948 | 62951 | 62958 | 62959 | 62967 | 62974 | 62987
Williamson County, IL - PO Box ZIP Codes (NO DEMOGRAPHIC DATA)
62841 | 62915 | 62921 | 62949
Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.
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Map of Williamson County, IL ZIP Codes With Actual (Default) City Names

Cambria
Carterville
Colp
Creal Springs
Energy
Freeman Spur
Herrin
Hurst
Johnston City
Marion
Pittsburg

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