Washington County, Iowa Zip Codes

Zip Code
City
Population
52353Washington8,930
52327Riverside3,691
52356Wellman2,577
52248Keota1,655
52201Ainsworth1,508
52621Crawfordsville899
52359West Chester422

Overview of Zip Codes in Washington County

7
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Washington County, Iowa (US Census).