Below is a list of Winona MO zip codes. For your research we have also included Winona Area Code, Time Zone, UTC and the local Shannon County FIPS Code. Each Winona Missouri zip code has a center Longitude / Latitude point (the Winona center is -91.336196899414 / 37.000099182129). For your convenience we have also indicated if that zip code in Winona observes Daylight Savings time.