There are 7 zip codes in Mills County, Iowa. The most populated is 51534, located in Glenwood. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
515349,435Glenwood
515511,619Malvern
51561823Pacific Junction
51571750Silver City
51541491Henderson
51540304Hastings
5155488Mineola

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