Rensselaer Population

1880–2026

9,471

2026 projection

2.8% since 2020 (increase)

02K4K6K8K10K12K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Rensselaer. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20269,471+500.53%
20259,421+130.14%
20249,408+910.98%
20239,317+981.06%
20229,219-200.22%
20219,239+290.31%
20209,210-260.28%
20199,236-590.63%
20189,295+230.25%
20179,272-620.66%

Showing 10 of 30 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Rensselaer is growing faster than Rensselaer County and New York, and slower than the U.S.

  • United States+3.1%
  • Rensselaer+2.3%
  • Rensselaer County−0.2%
  • New York−0.6%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Rensselaer Demographics

36.7median age

Median age

Female37.9 yrs
Male33.9 yrs

Adults

7,306
1,328 seniors (65+) · 18% of adults5,978 other adults

Sex

Female 53% · 4,922Male 47% · 4,365

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 93 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Rensselaer Income

$70,080median household income

Median household income

$70,080

Half of households earn more, half earn less

Median earnings

$50,568

Typical yearly pay for a worker 25 or older.

Poverty rate

17.9%

About 1 in 6 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Rensselaer Marital Status

43% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married43%46%40%
Never married40%41%39%
Divorced10%5%14%
Widowed5%4%6%
Separated3%3%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201