There are 12 zip codes in Iowa County, Iowa. The most populated is 52361, located in Williamsburg. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
523614,784Williamsburg
523014,099Marengo
522032,300Amana
523471,367Victor
523161,298North English
52251551Ladora
52236512Homestead
52325460Parnell
52334259South Amana
52308155Millersburg
52220119Conroy
5230748Middle Amana

Zip Codes in Iowa County, Iowa by Population (2024)