ZIP Codes Box

Washington County, Iowa ZIP codes

8ZIP codes
8Cities and towns
24,763People in ZIP areas
319Area code

Washington County is in Iowa and the Central Time zone. ZIP codes don’t follow county lines exactly, so a ZIP code listed here can reach into a neighboring county.

All ZIP codes in Washington County

ZIP codeCityTypePopulationMedian income
52201AinsworthStandard1,148$93,750
52247KalonaStandard5,914$91,450
52327RiversideStandard3,796$86,942
52353WashingtonStandard9,241$63,047
52356WellmanStandard2,664$57,321
52359West ChesterStandard308$67,727
52540BrightonStandard1,088$55,000
52621CrawfordsvilleStandard604$87,188

Cities and towns in Washington County

Area codes in Washington County

Questions

How many ZIP codes are in Washington County, IA?
Washington County has 8 ZIP codes.
What cities are in Washington County?
Washington County ZIP codes cover Ainsworth, Brighton, Crawfordsville, Kalona, Riverside, Washington, Wellman and West Chester.
What area code is Washington County, IA?
Washington County uses area code 319.
What time zone is Washington County in?
Washington County is in Central Time.

Other Iowa counties