Harlingen, New Jersey Demographics & Population 2026

A note before these figures: with a population of 593, Harlingen'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

Harlingen is a small community located in New Jersey, within Somerset County. The total population is 593. It ranks as the 601st most populous out of 700 Census-designated places in New Jersey.

Age Demographics

The median age in Harlingen is 39.6 years. This is 1% lower than the state median of 40.1 years. With 29.8% of the population under 18, Harlingen has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Harlingen is $231,923. This is 124% higher than the state median of $103,556. It is also 187% higher than the national median of $80,734. The ACS records no residents below the poverty line in Harlingen. 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 unemployment rate is 6.8%. This is 8% higher than the state rate of 6.3%. The median home value is $800,900. Housing costs are 76% higher than the state median of $454,400. The home-value-to-income ratio is 3.5x. 89.7% of occupied housing units are owner-occupied. This homeownership rate is 41% higher than the state average of 63.8%.

Race & Ethnicity

The largest racial or ethnic group in Harlingen is White (non-Hispanic), making up 51.3% of the population. Asian residents account for 42.3%. The Hispanic or Latino population (6.4%) is well below the state average of 22.5%. The Asian population is significantly higher than the state average (42.3% vs 10.1%).

Education

80.0% of residents aged 25 and older hold a bachelor's degree or higher. This places Harlingen in the top 10% of all cities in the state for educational attainment. This is 83% higher than the state rate of 43.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample. Notably, 72.9% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Harlingen, 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.