Below is a list of Antelope MT zip codes. For your research we have also included Antelope Area Code, Time Zone, UTC and the local Sheridan County FIPS Code. Each Antelope Montana zip code has a center Longitude / Latitude point (the Antelope center is -104.45800018311 / 48.689701080322). For your convenience we have also indicated if that zip code in Antelope observes Daylight Savings time.