Williamstown, NJ
Population 14,855 · New Jersey
About Williamstown, NJ
Williamstown is a mid-sized city located in New Jersey with a population of 14,855 residents according to the latest US Census Bureau American Community Survey data. The median household income is $87,021 per year, which is 16% above the national median of $75,149. The median age of 40.6 years is close to the US median age of 38.9 years.
Housing Market Overview
The housing market in Williamstown features a median home value of $255,000, which is 4% above the national median of $244,900. This positions Williamstown in a moderately priced market relative to the rest of the country. Median monthly rent is $1,262, 9% above the national average of $1,163/month. Of the 6,082 total housing units, 80% are owner-occupied (4,659 units) and 20% are renter-occupied (1,195 units). The high homeownership rate suggests a stable, established residential community.
Economy & Employment
The local economy in Williamstown shows an unemployment rate of 5.6%, which is significantly above the national rate of 3.7%, suggesting economic challenges in the area. The poverty rate stands at 7.3%, below the national average of 12.4%, reflecting generally favorable economic conditions. Workers in Williamstown have an average one-way commute time of 35 minutes.
Education & Demographics
27.5% of Williamstown residents aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. This is in line with national trends in educational attainment. The community's demographic composition includes 0.1% White, 4.4% Hispanic or Latino, 2.6% Black or African American, and 4.2% Asian residents, with 3.8% of the population being foreign-born.
Cost of Living in Williamstown, NJ
Compared to national averages, Williamstown has a median household income of $87,021 (16% above the national median of $75,149). Home values average $255,000, which is 4% above the national median. Monthly rent at $1,262 is 9% above the US average of $1,163. Within New Jersey, Williamstown's income is 25% below the state average of $115,667, and home values are 46% below the state median of $469,644.
Why Live in Williamstown, NJ?
Williamstown offers a strong local economy with a median household income of $87,021, well above the national average, and a low poverty rate of 7.3%, better than the national average.
Williamstown has a population of 14,855 with a median age of 40.6 years. Compare Williamstown with other cities to see how it stacks up, or explore all cities in New Jersey.
Similar Cities Near Williamstown
Cities in New Jersey with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Cherry Hill Mall | 14,827 | $117,535 | $313,000 | Compare |
| Hammonton | 14,746 | $83,044 | $324,200 | Compare |
| Highland Park | 14,981 | $101,991 | $463,600 | Compare |
| Metuchen | 14,982 | $157,779 | $565,400 | Compare |
| Ramsey | 14,722 | $164,767 | $665,700 | Compare |
| Edgewater | 14,544 | $137,847 | $723,400 | Compare |
| Moorestown-Lenola | 14,523 | $134,167 | $533,400 | Compare |
| Middlesex | 14,518 | $107,063 | $414,600 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in New Jersey
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
Compare Williamstown With Other Cities
Frequently Asked Questions about Williamstown
What is the population of Williamstown, NJ?
The population of Williamstown, NJ is 14,855 according to the latest US Census Bureau American Community Survey estimates. This makes it a mid-sized city in New Jersey.
What is the median household income in Williamstown?
The median household income in Williamstown, NJ is $87,021 per year, which is 16% above the national median of $75,149.
What is the median home value in Williamstown?
The median home value in Williamstown, NJ is $255,000, which is 4% above the national median of $244,900. The majority of housing units are owner-occupied.
What is the average rent in Williamstown?
The median monthly rent in Williamstown, NJ is $1,262, which is 9% above the national average of $1,163/month.
What is the unemployment rate in Williamstown?
The unemployment rate in Williamstown, NJ is 5.6%, compared to the national average of 3.7%. Job seekers may want to research the dominant industries in the area.
Is Williamstown, NJ a good place to live?
Williamstown offers above-average incomes, a competitive housing market, and growing employment opportunities. With a population of 14,855 and a median age of 40.6, the city appeals to a broad range of residents.
How educated is Williamstown, NJ?
27.5% of residents in Williamstown aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. The educational profile reflects the area's industry mix and employment landscape.
What is the cost of living in Williamstown?
Key cost-of-living indicators for Williamstown, NJ: median home value is $255,000 (4% above national), median rent is $1,262/month, and median household income is $87,021. The home-value-to-income ratio is 2.9x, indicating relatively affordable housing relative to local incomes.
What is the poverty rate in Williamstown?
The poverty rate in Williamstown, NJ is 7.3%, compared to the national average of 12.4%. This below-average poverty rate reflects generally favorable economic conditions in the community.
How diverse is Williamstown, NJ?
Williamstown's population is 0.1% White, 4.4% Hispanic or Latino, 2.6% Black or African American, 4.2% Asian, and 9.1% two or more races. 3.8% of residents are foreign-born.