There are 16 zip codes in Pottawattamie County, Iowa. The most populated is 51503, located in Council Bluffs. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
51503Council Bluffs37,081
51501Council Bluffs35,400
51510Carter Lake3,780
51560Oakland2,035
51559Neola2,000
51576Underwood1,960
51521Avoca1,857
51575Treynor1,663
51526Crescent1,560
51577Walnut1,326
51553Minden1,100
51525Carson1,003
51542Honey Creek950
51548McClelland509
51536Hancock418
51549Macedonia394

Pottawattamie County, Iowa Zip Codes by Population (2024)