
Watertown
- County:
- Jefferson County
- County Seat:
- No
- Area (mi²):
- 9.032
- State:
- New York
Watertown is a city located in Jefferson County, New York. Watertown has a 2025 population of 23,897. Watertown is currently declining at a rate of -0.54% annually and its population has decreased by -2.64% since the most recent census, which recorded a population of 24,546 in 2020.
The average household income in Watertown is $70,123 with a poverty rate of 20.81%. The median age in Watertown is 35.6 years: 34.6 years for males, and 36.6 years for females.