
Waterloo
- County:
- Seneca County
- County Seat:
- No
- Area (mi²):
- 21.668
- State:
- New York
Waterloo town is located in Seneca County, New York. Waterloo town has a 2025 population of 7,189. Waterloo town is currently declining at a rate of -0.55% annually and its population has decreased by -2.36% since the most recent census, which recorded a population of 7,363 in 2020.
The average household income in Waterloo town is $79,557 with a poverty rate of 10.55%. The median age in Waterloo town is 44.2 years: 43.6 years for males, and 45.1 years for females.