Greenwich CDP (Warren County), New Jersey Demographics & Population 2026

Population Overview

Greenwich CDP (Warren County) is a small community located in New Jersey. The total population is 2,615. It ranks as the 415th most populous out of 700 cities and towns in New Jersey.

Age Demographics

The median age in Greenwich CDP (Warren County) is 38.7 years. This is 3% lower than the state median of 40.1 years. With 30.0% of the population under 18, Greenwich CDP (Warren County) has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Greenwich CDP (Warren County) is $166,977. This is 65% higher than the state median of $101,050. Compared to the national median of $78,538, household income here is 113% higher. The poverty rate stands at 0.8%. This is 91% lower than the state poverty rate of 9.8%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 6.3%. This is 2% higher than the state rate of 6.2%. The median home value is $457,500. Housing costs are 7% higher than the state median of $427,600. With a home-value-to-income ratio of just 2.7x, Greenwich CDP (Warren County) is one of the most affordable housing markets in the area. 97.2% of occupied housing units are owner-occupied. This homeownership rate is 53% higher than the state average of 63.7%.

Race & Ethnicity

The largest racial or ethnic group in Greenwich CDP (Warren County) is White (non-Hispanic), making up 49.6% of the population. Asian residents account for 17.6%. The Asian population is significantly higher than the state average (17.6% vs 9.8%).

Education

58.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 36% higher than the state rate of 42.9%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.9%. Notably, 21.4% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Greenwich CDP (Warren County), New Jersey is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. 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. For official data, visit data.census.gov.