Below is a list of Ennis MT zip codes. For your research we have also included Ennis Area Code, Time Zone, UTC and the local Madison County FIPS Code. Each Ennis Montana zip code has a center Longitude / Latitude point (the Ennis center is -111.7320022583 / 45.34939956665). For your convenience we have also indicated if that zip code in Ennis observes Daylight Savings time.