Rensselaer County Flag

Rensselaer County

State:
New York
County Seat:
Troy

Rensselaer County's estimated 2026 population is 161,006 with a growth rate of 0.31% in the past year according to the most recent United States census data. Rensselaer County is the 22nd largest county in New York. The 2010 population was 159,342 and has seen a growth of 1.04% since that time.

161,006
Total Population
247
Population Density (mi²)
22
Population Rank (State)
496 0.31%
Annual Population Growth

Rensselaer County Population

Demographics

Economics and Income Statistics