Below is a list of Sumatra MT zip codes. For your research we have also included Sumatra Area Code, Time Zone, UTC and the local Rosebud County FIPS Code. Each Sumatra Montana zip code has a center Longitude / Latitude point (the Sumatra center is -107.55100250244 / 46.618198394775). For your convenience we have also indicated if that zip code in Sumatra observes Daylight Savings time.