There are 7 zip codes in Floyd County, Iowa. The most populated is 50616, located in Charles City. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
506169,544Charles City
504582,297Nora Springs
504681,553Rockford
50435687Floyd
50471680Rudd
50653504Marble Rock
5062055Colwell

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