There are 12 zip codes in Warren County, Iowa. The most populated is 50125, located in Indianola. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
5012520,364Indianola
5021115,120Norwalk
500476,635Carlisle
501662,016Milo
502101,570New Virginia
502291,392Prole
501391,003Lacona
50118782Hartford
50160579Martensdale
50001575Ackworth
50241131Saint Marys
50145116Liberty Center

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