Williamstown CDP, New Jersey Demographics & Population 2026
As of 2026, Williamstown CDP, New Jersey has a total population of 14,855, the 82nd largest city in New Jersey, with a median household income of $87,021, which is 14% lower than the state average. The poverty rate is 7.3%.
Williamstown CDP Quick Facts
How Williamstown CDP Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 65 | National average: 60
Education
Educational Attainment (Adults 25+)
Williamstown CDP Rankings in New Jersey
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Cities Similar to Williamstown CDP
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Hammonton town | 14,746 | $83,044 | $324,200 | 32.1% | 11.2% |
| Collingswood borough | 14,163 | $83,917 | $346,300 | 51.5% | 10.8% |
| Highland Park borough | 14,981 | $101,991 | $463,600 | 70.2% | 9.3% |
| Eatontown borough | 13,537 | $90,174 | $454,300 | 39.9% | 5.8% |
| Woodland Park borough | 13,284 | $85,638 | $475,400 | 36.8% | 6.1% |
Population Overview
Williamstown CDP is a small city located in New Jersey. The total population is 14,855. It ranks as the 82nd most populous out of 700 cities and towns in New Jersey.
Age Demographics
The median age in Williamstown CDP is 40.6 years. This is 1% higher than the state median of 40.1 years.
Economy, Income & Housing
The median household income in Williamstown CDP is $87,021. This is 14% lower than the state median of $101,050. Compared to the national median of $78,538, household income here is 11% higher. The poverty rate stands at 7.3%. This is 26% lower than the state poverty rate of 9.8%. The unemployment rate is 5.7%. This is 8% lower than the state rate of 6.2%. The median home value is $255,000. Housing costs are 40% lower than the state median of $427,600. With a home-value-to-income ratio of just 2.9x, Williamstown CDP is one of the most affordable housing markets in the area. 79.6% of occupied housing units are owner-occupied. This homeownership rate is 25% higher than the state average of 63.7%.
Race & Ethnicity
The largest racial or ethnic group in Williamstown CDP is White (non-Hispanic), making up 76.8% of the population. Black or African American residents account for 9.2%. The Hispanic or Latino population (7.5%) is well below the state average of 21.9%. The Asian population (0.7%) is well below the state average of 9.8%.
Education
27.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 36% lower 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 96.5%.
Data Sources & Methodology
All demographic data for Williamstown CDP, 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.
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Frequently Asked Questions
What is the population of Williamstown CDP, New Jersey?
Williamstown CDP, New Jersey has a population of 14,855 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Williamstown CDP, NJ?
The median household income in Williamstown CDP is $87,021, which is 11% higher the national median of $78,538.
What is the poverty rate in Williamstown CDP, NJ?
The poverty rate in Williamstown CDP is 7.3%. This means approximately 1,068 residents live below the federal poverty line.
What is the racial makeup of Williamstown CDP, New Jersey?
Williamstown CDP's population is 76.8% White, 9.2% Black, 7.5% Hispanic/Latino, and 0.7% Asian.
What is the median home value in Williamstown CDP, NJ?
The median home value in Williamstown CDP is $255,000. The home-value-to-income ratio is 2.9x.
How educated is Williamstown CDP, New Jersey?
27.5% of adults (25+) in Williamstown CDP hold a bachelor's degree or higher, and 7.2% hold a graduate or professional degree.