Putnam County Flag

Putnam County

State:
New York
County Seat:
Carmel

Putnam County's estimated 2026 population is 99,214 with a growth rate of 0.19% in the past year according to the most recent United States census data. Putnam County is the 29th largest county in New York. The 2010 population was 99,644 and has seen a growth of -0.43% since that time.

99,214
Total Population
431
Population Density (mi²)
29
Population Rank (State)
186 0.19%
Annual Population Growth

Putnam County Population

Demographics

Economics and Income Statistics