Below is a list of Darby MT zip codes. For your research we have also included Darby Area Code, Time Zone, UTC and the local Ravalli County FIPS Code. Each Darby Montana zip code has a center Longitude / Latitude point (the Darby center is -114.17800140381 / 46.022499084473). For your convenience we have also indicated if that zip code in Darby observes Daylight Savings time.