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Advertise here →Williamstown, NJ · Market Data
Williamstown, New Jersey real estate market data.
Real estate market data for Williamstown, NJ (Gloucester County) — Census median home value $255,000, county listing prices down about 0.6% over the past year.
Williamstown, NJ is in Gloucester County, New Jersey — covering the whole local market here: resale homes, condos, land, and new construction. The most recent Census estimate puts the population at 14,855, with a median household income of $87,021. Census data puts Williamstown's median home value at $255,000 (all owner-occupied homes); Gloucester County's current median listing price runs $390,000, down about 0.6% over the past year.
At a glance
Williamstown market snapshot
Population
14,855
Median Household Income
$87,021
Median Home Value (city)
$255,000
Median Listing Price (Gloucester County)
$390,000
Median Gross Rent
$1,262/mo
Price Trend (YoY)
-0.6%
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. Full source list ↗
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What makes Williamstown different
Home Value, By Source
The Census Bureau's American Community Survey (2023 5-year estimate) puts Williamstown's median home value — across all owner-occupied homes, not just recent sales — at $255,000. Separately, Gloucester County's current median listing price (via Realtor.com data, 2026-06-01) runs $390,000. These cover different geography (city vs. county) and different measures (assessed value vs. active listings), which is why we show both rather than picking one — full source list on our data sources page.
County Price Trend
Gloucester County's FHFA house price index shows a 5.17% annual change in 2025.
Population & Income
Williamstown has an estimated population of 14,855 and a median household income of $87,021, per the Census Bureau's American Community Survey (2023 5-year estimate).
Affordability Snapshot
Williamstown's Census-reported median home value works out to about 2.9x the area's median household income, and median gross rent runs roughly 17% of that same income on an annualized basis. Housing economists commonly flag a price-to-income ratio above 4x as historically elevated -- useful context, not a personal affordability verdict.
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Common questions
Williamstown FAQ
What are home values like in Williamstown, NJ?
The Census Bureau's American Community Survey puts Williamstown's median home value at $255,000. Gloucester County's current median listing price runs $390,000, down about 0.6% over the past year.
What is the population of Williamstown, NJ?
The U.S. Census Bureau's American Community Survey (2023 5-year estimate) puts Williamstown's population at approximately 14,855.
What's the median rent in Williamstown, NJ?
The Census ACS estimates median gross rent in Williamstown at approximately $1,262 per month.
What is the median household income in Williamstown, NJ?
Census ACS data puts the median household income in Williamstown at approximately $87,021.
Is the Williamstown housing market growing?
Gloucester County's FHFA house price index shows a 5.17% annual change in 2025.
Is Williamstown, NJ affordable relative to income?
Census ACS data puts Williamstown's median home value at about 2.9 times the median household income, with median gross rent equal to roughly 17% of that income annually. This is a general benchmark, not a personal pre-qualification -- your own income, debt, and down payment determine what you can actually afford.
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