Below is a list of Winona County MN zip codes. For your research we have also included Winona County Area Code, Time Zone, UTC and the local County FIPS Code. Each Winona County Minnesota zip code has a center Longitude / Latitude point (the Winona County center is -91.781700134277 / 44.018100738525). For your convenience we have also indicated if that zip code in Winona County observes Daylight Savings time.