
Nashua
- County:
- Valley County
- County Seat:
- No
- Area (mi²):
- 0.705
- State:
- Montana
Nashua is a town located in Valley County, Montana. Nashua has a 2025 population of 290. Nashua is currently declining at a rate of -0.68% annually and its population has decreased by -3.01% since the most recent census, which recorded a population of 299 in 2020.
The average household income in Nashua is $70,796 with a poverty rate of 18.77%. The median age in Nashua is 46 years: 43.6 years for males, and 53.3 years for females.