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 Washington County Address Data
Businesses Addresses: 1,624
PO Box Addresses: 1,589
Residential Addresses: 16,797
Multi-Family Addresses: 861
Single Family Addresses: 15,936
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Map of Washington County, IA ZIP Codes With Actual (Default) City Names