Nassau Lake, New York Demographics & Population 2026

A note before these figures: with a population of 830, Nassau Lake's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Nassau Lake is a small community located in New York, within Rensselaer County. The total population is 830. It ranks as the 907th most populous out of 1,289 Census-designated places in New York.

Age Demographics

The median age in Nassau Lake is 50.1 years. This is 26% higher than the state median of 39.8 years. Only 14.0% of residents are under 18, indicating fewer families with children. 12.2% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The poverty rate stands at 16.9%. This is 20% higher than the state poverty rate of 14.0%. The unemployment rate is 1.5%. This is 77% lower than the state rate of 6.4%. The median home value is $282,800. Housing costs are 33% lower than the state median of $423,800. 82.0% of occupied housing units are owner-occupied. This homeownership rate is 51% higher than the state average of 54.4%.

Race & Ethnicity

Nassau Lake has a predominantly White (non-Hispanic) population, comprising 86.5% of all residents. Asian residents account for 3.5%. The White (non-Hispanic) population is significantly higher than the state average (86.5% vs 52.8%). The Black or African American population (1.9%) is well below the state average of 13.4%. The Asian population (3.5%) is well below the state average of 9.0%.

Education

9.7% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 76% lower than the state rate of 40.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 82.5%.

Data Sources & Methodology

All demographic data for Nassau Lake, New York is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New York state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,289 Census-designated places in New York. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.