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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.

ZIP Codes in Williamson County Address Data

  • Businesses Addresses: 4,046
  • PO Box Addresses: 3,598
  • Residential Addresses: 52,526
    • Multi-Family Addresses: 3,563
    • Single Family Addresses: 48,963

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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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