
Allagash
- County:
- Aroostook County
- County Seat:
- No
- Area (mi²):
- 128.613
- State:
- Maine
Allagash is located in Aroostook County, Maine. Allagash has a 2025 population of 236. Allagash is currently declining at a rate of 0% annually and its population has decreased by -0.42% since the most recent census, which recorded a population of 237 in 2020.
The average household income in Allagash is $36,034 with a poverty rate of 22.54%. The median age in Allagash is 61.4 years: 54.8 years for males, and 64.5 years for females.