
Monticello
- County:
- Sullivan County
- County Seat:
- No
- Area (mi²):
- 4.081
- State:
- New York
Monticello is a village located in Sullivan County, New York. Monticello has a 2025 population of 7,210. Monticello is currently declining at a rate of -0.07% annually and its population has decreased by -0.37% since the most recent census, which recorded a population of 7,237 in 2020.
The average household income in Monticello is $63,891 with a poverty rate of 29.55%. The median age in Monticello is 33.8 years: 33.1 years for males, and 34.8 years for females.