Below is a list of Melville MT zip codes. For your research we have also included Melville Area Code, Time Zone, UTC and the local Sweet Grass County FIPS Code. Each Melville Montana zip code has a center Longitude / Latitude point (the Melville center is -109.95099639893 / 46.104301452637). For your convenience we have also indicated if that zip code in Melville observes Daylight Savings time.