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 Mason County Address Data
Businesses Addresses: 552
PO Box Addresses: 1,080
Residential Addresses: 7,181
Multi-Family Addresses: 53
Single Family Addresses: 7,128
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Map of Mason County, IL ZIP Codes With Actual (Default) City Names