Hainesburg, New Jersey Demographics & Population 2026

A note before these figures: with a population of 239, Hainesburg'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

Hainesburg is a small community located in New Jersey, within Warren County. The total population is 239. It ranks as the 655th most populous out of 700 Census-designated places in New Jersey.

Age Demographics

The median age in Hainesburg is 43.7 years. This is 9% higher than the state median of 40.1 years. With 29.7% of the population under 18, Hainesburg has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Hainesburg is $105,188. This is 2% higher than the state median of $103,556. It is also 30% higher than the national median of $80,734. The ACS records no residents below the poverty line in Hainesburg. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Hainesburg, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $406,300. Housing costs are 11% lower than the state median of $454,400. The home-value-to-income ratio is 3.9x. 66.4% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 63.8%.

Race & Ethnicity

Every resident counted in Hainesburg was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

39.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 10% lower 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 97.0%.

Data Sources & Methodology

All demographic data for Hainesburg, 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.