Rockleigh, New Jersey Demographics & Population 2026

A note before these figures: with a population of 459, Rockleigh'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

Rockleigh is a small community located in New Jersey, within Bergen County. The total population is 459. It ranks as the 623rd most populous out of 700 Census-designated places in New Jersey.

Age Demographics

The median age in Rockleigh is 68.2 years. This is 70% higher than the state median of 40.1 years. Only 11.1% of residents are under 18, indicating fewer families with children. 37.3% 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 11.7%. This is 21% higher than the state poverty rate of 9.7%. The unemployment rate is 4.0%. This is 36% lower than the state rate of 6.3%. The median home value is $2,000,000+. Housing costs are 340% higher than the state median of $454,400. 78.8% of occupied housing units are owner-occupied. This homeownership rate is 23% higher than the state average of 63.8%.

Race & Ethnicity

The largest racial or ethnic group in Rockleigh is White (non-Hispanic), making up 81.3% of the population. Asian residents account for 6.3%. The White (non-Hispanic) population is significantly higher than the state average (81.3% vs 50.9%). The Black or African American population (3.3%) is well below the state average of 12.2%. The Hispanic or Latino population (5.2%) is well below the state average of 22.5%.

Education

35.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 19% 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 86.8%. Notably, 19.5% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Rockleigh, 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.