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
City
Population
50125Indianola20,364
50211Norwalk15,120
50047Carlisle6,635
50166Milo2,016
50210New Virginia1,570
50229Prole1,392
50139Lacona1,003
50118Hartford782
50160Martensdale579
50001Ackworth575
50241Saint Marys131
50145Liberty Center116

Warren County, Iowa Zip Codes by Population (2024)