Below is a list of Winnett MT zip codes. For your research we have also included Winnett Area Code, Time Zone, UTC and the local Petroleum County FIPS Code. Each Winnett Montana zip code has a center Longitude / Latitude point (the Winnett center is -108.34799957275 / 47.012298583984). For your convenience we have also indicated if that zip code in Winnett observes Daylight Savings time.