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.

Zip Code
City
Population
55987Winona34,052
55972Saint Charles5,326
55952Lewiston2,759
55959Minnesota City2,031
55910Altura1,244
55925Dakota1,197
55969Rollingstone1,136
55979Utica1,027

Winona County, Minnesota Zip Codes by Population (2024)