Below is a list of Olney MT zip codes. For your research we have also included Olney Area Code, Time Zone, UTC and the local Flathead County FIPS Code. Each Olney Montana zip code has a center Longitude / Latitude point (the Olney center is -114.56999969482 / 48.548301696777). For your convenience we have also indicated if that zip code in Olney observes Daylight Savings time.