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Advertise here →Williamstown, NJ · Houses & Market Data
Williamstown, New Jersey houses and real estate market data.
Houses in Williamstown, NJ (Gloucester County) — Census median home value $255,000, county listing prices down about 0.6% over the past year. Market data for Williamstown houses and the broader area.
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Williamstown, NJ is in Gloucester County, New Jersey — this guide covers houses in Williamstown and the whole local market: 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 houses at a median value of $255,000 (all owner-occupied homes); Gloucester County's current median listing price runs $390,000, down about 0.6% over the past year.
Info from government sites and builders may have provided source info.
Market overview
Williamstown housing market
Williamstown is in Gloucester County, New Jersey. Manifest Census and county price-trend data provide baseline context for houses in Williamstown and the surrounding county market.
Median home value (Census ACS)
$255,000
Population (Census ACS)
14,855
Median household income
$87,021
County price trend (2025)
5.17% YoY
Population, income, and median home value from the project batch manifest (Census ACS 2023 5-year). County price trend from FHFA county HPI when present in the manifest row.
At a glance
Williamstown market snapshot
Population
14,855
County
Gloucester County
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. See About
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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.
Nearby
Places around Williamstown
County guide: Gloucester County — cities, market context, and local resources for the county that includes Williamstown.
USAHouses.com also helps visitors looking in nearby Gloucester County and other New Jersey communities. Some locations may not yet have dedicated pages, but many licensed professionals in this region assist surrounding communities.
Nearby communities include Victory Lakes, Clayton, Franklinville, Turnersville, Glassboro, Malaga, Pitman, Newfield, Sewell, Richwood, Wenonah, Mullica Hill, Woodbury Heights, Oak Valley, Woodbury, Westville.
Victory Lakes market data
Nearby city · ~3.7 mi
Clayton market data
Nearby city · ~5.8 mi
Franklinville market data
Nearby city · ~7.2 mi
Turnersville market data
Nearby city · ~7.5 mi
Glassboro market data
Nearby city · ~7.7 mi
Malaga market data
Nearby city · ~8.6 mi
Pitman market data
Nearby city · ~9.2 mi
Newfield market data
Nearby city · ~9.5 mi
Sewell market data
Nearby city · ~11.0 mi
Richwood market data
Nearby city · ~11.1 mi
Wenonah market data
Nearby city · ~12.1 mi
Mullica Hill market data
Nearby city · ~13.1 mi
Woodbury Heights market data
Nearby city · ~13.2 mi
Oak Valley market data
Nearby city · ~13.2 mi
Woodbury market data
Nearby city · ~14.4 mi
Westville market data
Nearby city · ~15.4 mi
More New Jersey cities with market guides: Newark, Jersey City, Paterson, Elizabeth, Toms River, Trenton, Clifton, Camden.
Newark market data
Same-state city guide
Jersey City market data
Same-state city guide
Paterson market data
Same-state city guide
Elizabeth market data
Same-state city guide
Toms River market data
Same-state city guide
Trenton market data
Same-state city guide
Clifton market data
Same-state city guide
Camden market data
Same-state city guide
Adjacent-county Census places with USAHouses.com pages: Sicklerville (~4.2 mi), Chesilhurst (~5.6 mi), Pine Hill (~7.0 mi), Berlin (~7.6 mi), Atco (~8.2 mi), Grenloch (~8.2 mi), Clementon (~8.2 mi), West Berlin (~8.8 mi), Lindenwold (~9.4 mi), Blackwood (~9.4 mi), Laurel Springs (~9.6 mi), Gibbsboro (~10.3 mi), Stratford (~10.3 mi), Hi-Nella (~10.9 mi), Echelon (~11.3 mi), Somerdale (~11.5 mi).
New construction: New homes near Williamstown (Newark) · New Jersey new construction.
Census & home facts
Williamstown data from published sources
Population (ACS 2023)
14,855
Median home value (ACS 2023)
$255,000
Median household income (ACS 2023)
$87,021
Median gross rent (ACS 2023)
$1,262
County FHFA annual change (2025)
5.17%
County median listing price (FRED/Realtor.com) (2026-06-01)
$390,000
Census place type
CDP
County
Gloucester County
Land area (Census Gazetteer 2024)
7.42 sq mi
Census GEOID
3481380
Census ACS, FHFA, and FRED figures are labeled with the year present in existing CSVs. Subject to change / confirm locally.
NewUSAHouses.com communities
Closest verified new-home communities near Williamstown
Availability and pricing are controlled by the builder and may change; confirm with the builder.
Stoneman Corporation ↗
Champion Homes · Williamstown, New Jersey · ~2.7 mi
Grandview Mews ↗
Ryan Homes · Williamstown, New Jersey · ~2.7 mi · from $394,990
Jefferson Mews ↗
D.R. Horton · Sicklerville, New Jersey · ~2.8 mi
Emerson Square ↗
Lennar · Sicklerville, New Jersey · ~3.9 mi · from $549,990
Sandy Ridge ↗
D.R. Horton · Sicklerville, New Jersey · ~4.7 mi · from $349,490
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Common questions
Williamstown FAQ
What are houses worth in Williamstown, NJ?
The Census Bureau's American Community Survey puts the median value of houses in Williamstown at $255,000. Gloucester County's current median listing price runs $390,000, down about 0.6% over the past year.
How much do houses cost in Williamstown, NJ?
For owner-occupied houses in Williamstown, Census ACS data shows a median value of $255,000. Active listing prices in Gloucester County may differ — see the market snapshot above.
What types of houses are in Williamstown, NJ?
Williamstown houses include resale single-family homes, condos, mobile homes, and small multi-unit buildings, plus new construction in surrounding Gloucester County communities where builders are active. The housing-stock section below uses Census ACS structure counts when available for this city.
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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