Below is a list of Biddle MT zip codes. For your research we have also included Biddle Area Code, Time Zone, UTC and the local Powder River County FIPS Code. Each Biddle Montana zip code has a center Longitude / Latitude point (the Biddle center is -105.33799743652 / 45.09700012207). For your convenience we have also indicated if that zip code in Biddle observes Daylight Savings time.