There are 8 zip codes in Winona County, Minnesota. The most populated is 55987, located in Winona. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
5598734,052Winona
559725,326St. Charles
559522,759Lewiston
559592,031Minnesota City
559101,244Altura
559251,197Dakota
559691,136Rollingstone
559791,027Utica
showing: 8 rows

Zip Codes in Winona County, Minnesota by Population (2024)