Rensselaer County's 2026 population is estimated at 162,555, reflecting a 0.56% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Rensselaer County is the 22nd largest county in New York. The 2010 population was 159,342 and has grown 2.02% since 2010.
Data after 2023 is projected based on recent change
Overall: 40.1 years
Female: 41.8 years
Male: 38.8 years
There are 129,770 adults, (29,330 of whom are seniors) in Rensselaer County.
Female: 80,372 (50.1%)
Male: 79,960 (49.9%)
The racial composition of Rensselaer County includes 79.98% White, 6.97% Black or African American, 3.22% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 128,235 | 79.98% |
| Two or more races | 11,310 | 7.05% |
| Black or African American | 11,173 | 6.97% |
| Asian | 5,164 | 3.22% |
| Other race | 4,181 | 2.61% |
| Native American | 250 | 0.16% |
| Native Hawaiian or Pacific Islander | 19 | 0.01% |
Rensselaer County 's average per capita income is $61,110. Household income levels show a median of $87,915. The poverty rate stands at 11.82%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $135,727 | $152,482 |
| Families | $113,564 | $130,400 |
| Households | $87,915 | $107,086 |
| Non Families | $53,615 | $69,303 |
Average Income
Median Household Income
Poverty Rate
