
Westerlo
- County:
- Albany County
- County Seat:
- No
- Area (mi²):
- 57.793
- State:
- New York
Westerlo is located in Albany County, New York. Westerlo has a 2025 population of 3,213. Westerlo is currently growing at a rate of 0.25% annually and its population has increased by 0.85% since the most recent census, which recorded a population of 3,186 in 2020.
The average household income in Westerlo is $104,929 with a poverty rate of 8.26%. The median age in Westerlo is 42.4 years: 38.5 years for males, and 45.7 years for females.