
Ennis
- County:
- Madison County
- County Seat:
- No
- Area (mi²):
- 0.738
- State:
- Montana
Ennis is a town located in Madison County, Montana. Ennis has a 2025 population of 1,129. Ennis is currently growing at a rate of 3.77% annually and its population has increased by 22.19% since the most recent census, which recorded a population of 924 in 2020.
The average household income in Ennis is $70,084 with a poverty rate of 11.84%. The median age in Ennis is 52.6 years: 51.8 years for males, and 55.5 years for females.