There are 8 zip codes in Palo Alto County, Iowa. The most populated is 50536, located in Emmetsburg. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
505364,304Emmetsburg
513421,315Graettinger
505971,312West Bend
513581,259Ruthven
50562394Mallard
50528344Cylinder
50515271Ayrshire
50527106Curlew

Zip Codes in Palo Alto County, Iowa by Population (2024)