Below is a list of Geyser MT zip codes. For your research we have also included Geyser Area Code, Time Zone, UTC and the local Judith Basin County FIPS Code. Each Geyser Montana zip code has a center Longitude / Latitude point (the Geyser center is -110.4940032959 / 47.256801605225). For your convenience we have also indicated if that zip code in Geyser observes Daylight Savings time.