Blairstown, New Jersey Demographics & Population 2026

A note before these figures: with a population of 344, Blairstown'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

Blairstown is a small community located in New Jersey, within Warren County. The total population is 344. It ranks as the 638th most populous out of 700 Census-designated places in New Jersey.

Age Demographics

The median age in Blairstown is 48.6 years. This is 21% higher than the state median of 40.1 years. Only 7.0% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in Blairstown is $150,417. This is 45% higher than the state median of $103,556. It is also 86% higher than the national median of $80,734. The poverty rate stands at 12.8%. This is 32% higher than the state poverty rate of 9.7%. The survey records no unemployed residents in Blairstown, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $309,700. Housing costs are 32% lower than the state median of $454,400. With a home-value-to-income ratio of just 2.1x, Blairstown is one of the most affordable housing markets in the area. 91.5% of occupied housing units are owner-occupied. This homeownership rate is 43% higher than the state average of 63.8%.

Race & Ethnicity

Blairstown has a predominantly White (non-Hispanic) population, comprising 88.1% of all residents. Hispanic or Latino residents account for 8.1%. The White (non-Hispanic) population is significantly higher than the state average (88.1% vs 50.9%). The Black or African American population (3.8%) is well below the state average of 12.2%. The Hispanic or Latino population (8.1%) is well below the state average of 22.5%.

Education

51.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 19% higher than the state rate of 43.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 86.3%.

Data Sources & Methodology

All demographic data for Blairstown, New Jersey 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 Jersey state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 700 Census-designated places in New Jersey. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.