
Acton
- County:
- Yellowstone County
- County Seat:
- No
- Area (mi²):
- 0.24
- State:
- Montana
Acton is a CDP located in Yellowstone County, Montana. Acton has a 2025 population of 99. Acton is currently growing at a rate of 7.61% annually and its population has increased by 30.26% since the most recent census, which recorded a population of 76 in 2020.
The average household income in Acton is $40,330 with a poverty rate of 7.14%. The median age in Acton is 37.2 years: 0 years for males, and 37 years for females.