
Putnam Lake
- County:
- Putnam County
- County Seat:
- No
- Area (mi²):
- 4.553
- State:
- New York
Putnam Lake is a CDP located in Putnam County, New York. Putnam Lake has a 2025 population of 3,822. Putnam Lake is currently declining at a rate of -0.03% annually and its population has decreased by -3.07% since the most recent census, which recorded a population of 3,943 in 2020.
The average household income in Putnam Lake is $113,491 with a poverty rate of 7.75%. The median age in Putnam Lake is 45.9 years: 45.5 years for males, and 47.9 years for females.