
Colchester
- County:
- Delaware County
- County Seat:
- No
- Area (mi²):
- 136.79
- State:
- New York
Colchester is located in Delaware County, New York. Colchester has a 2025 population of 1,756. Colchester is currently declining at a rate of -0.68% annually and its population has decreased by -1.01% since the most recent census, which recorded a population of 1,774 in 2020.
The average household income in Colchester is $87,966 with a poverty rate of 14.67%. The median age in Colchester is 48.8 years: 43.9 years for males, and 51.9 years for females.