
Monticello
- County:
- Aroostook County
- County Seat:
- No
- Area (mi²):
- 38.204
- State:
- Maine
Monticello is located in Aroostook County, Maine. Monticello has a 2025 population of 737. Monticello is currently growing at a rate of 0.14% annually and its population has increased by 0.55% since the most recent census, which recorded a population of 733 in 2020.
The average household income in Monticello is $65,262 with a poverty rate of 18.8%. The median age in Monticello is 53.6 years: 55.8 years for males, and 52.6 years for females.