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NJ area data

Williamstown, NJ

Williamstown, NJ.

Population: 41,595 (Census ACS)

The median home value in Williamstown, NJ is $375,599 — up 2.1% over the past year. Homes sell for a median $367,500 after a median 42 days on market. Typical rent runs $2,850/month. 7 schools serve the area (NCES). FEMA's National Risk Index rates the county's overall natural-hazard risk Relatively Moderate, with winterweather, coastalflooding, icestorm the top-rated hazards. Cost of living is 12.5% above the US average (BEA, metro/state-level).

Backed by 25+ public sourcesFEMA · U.S. Census · NOAA · Dept. of Education · EPA · and more

$375,599

Median home value

+2.1%

1-year change

42

Median days on market

Relatively Moderate

Hazard risk (county)

Home values & appreciation

Median home value
$375,599
1-year appreciation
+2.1%
3-year appreciation
+13.9%
5-year appreciation
+37.7%
10-year appreciation
+82.9%
All-time peak (2026-06)
$375,651
House Price Index (state)
430.8 (+5.2% YoY)

Sources: home value index (ZIP-level) · FHFA House Price Index (state-level)

Market activity

Median sale price
$367,500
Median list price
$375,000
Median price per sqft
$230
1-year sale-price change
+2.1%
Median days on market
42 days
Homes sold (recent period)
110
For-sale inventory
127
Sale-to-list ratio
100.2%
Active listings
91
1-year forecast
+2.0%
Days to pending
35 days
New listings (monthly)
54

Source: recent area sales and market data (ZIP-level)

Rents

Typical rent
$2,850/mo
Studio fair-market rent
$1,410/mo
1BR fair-market rent
$1,540/mo
2BR fair-market rent
$1,840/mo
3BR fair-market rent
$2,220/mo
4BR fair-market rent
$2,480/mo

Sources: market rent index (ZIP-level) · HUD Fair Market Rents (metro/county-level, 40th-percentile regulatory reference)

Affordability

Cost of living index (High)
112.5 (100 = US avg)
Electricity rate (state-level)
22.6¢/kWh
Natural gas rate (state-level)
$14.20/MCF
30-year mortgage rate (national)
6.66%
15-year mortgage rate (national)
6.00%

Sources: BEA Regional Price Parities (metro/state-level) · EIA energy rates (state-level) · Freddie Mac PMMS (national)

Schools

Total schools
7
Elementary schools
5
Middle schools
1
High schools
1
School districts serving the area
Buena Regional School District, Monroe Township Public School District
Schools include
Collings Lakes Elementary School, Williamstown Middle School, Oak Knoll Elementary School, Williamstown High School, Holly Glen Elementary School

Source: NCES school directory, 2022-23 (school-address-based)

Natural hazards & flood risk

Overall hazard risk (county)
Relatively Moderate
Top hazards (county)
winterWeather, coastalFlooding, iceStorm, lightning, strongWind
Notable hazard ratings (county)
coastalFlooding: Relatively High · coldWave: Relatively Moderate · drought: Relatively Moderate · earthquake: Relatively Low · hail: Relatively Low · heatWave: Relatively Moderate
FEMA flood zone
A
Flood risk level
High
Wildfire risk to homes (county)
Higher than 53% of US counties
Buildings in wildfire direct-exposure zone
41.0%
Radon potential (county)
Moderate radon potential — EPA Zone 2 of 3
EPA Superfund (NPL) sites within 5 mi
1
Nearest Superfund site
King of Prussia (4.1 mi)
EPA recommends radon testing for every home regardless of zone.

Sources: FEMA National Risk Index (county-level) · FEMA flood data (ZIP-level) · USDA Forest Service Wildfire Risk to Communities (county-level) · EPA radon zones + Superfund NPL

Climate (30-year normals)

Average annual temperature
58.0°F
Average high
67.0°F
Average low
49.0°F
Annual precipitation
44.5 in
Annual snowfall
1.6 in
USDA plant hardiness zone
7a (extreme annual low 0 to 5°F)

Sources: NOAA Climate Normals (30-year, nearest-station) · USDA Plant Hardiness Zone Map (2023)

Air quality

Air quality rating
Good
Median AQI (annual)
43
Days with Good air quality
236
Days with Moderate air quality
77
Days with Unhealthy air quality
3
Highest AQI recorded (year)
185

Source: EPA air quality data (nearest monitoring station, annual)

Walkability & transit

Walkability index
12.2 / 20
Transit service frequency
633
Jobs reachable by car (30 min)
62,099
Jobs reachable by transit (45 min)
72,887

Source: EPA Smart Location Database (metropolitan block groups)

Amenities

National parks within ~60 mi
11
Nearest national park
Gloria Dei Church National Historic Site (22 mi)
National parks include
Gloria Dei Church National Historic Site, Thaddeus Kosciuszko National Memorial, Independence National Historical Park
Airports within 30 mi
44
Nearest airport
Southern Cross Airport (3 mi)
Nearest major airport
Millville Municipal Airport (MIV) (20 mi)
Hospitals nearby (~15 mi)
7
Hospitals include
INSPIRA MEDICAL CENTER VINELAND, INSPIRA MEDICAL CENTER MULLICA HILL, JEFFERSON STRATFORD HOSPITAL
Avg hospital rating (CMS)
2.3 / 5
Best hospital rating nearby (CMS)
3.0 / 5
Solar radiation rating
Fair (4.1 kWh/m²/day)

Sources: National Park Service · FAA airport data · CMS hospital data · DOE/NREL (proximity-based)

Migration

Net migration (county)
+330 tax filers

Source: IRS county-to-county migration data (county-level, ~12-month lag)

Housing stock

Median year housing built
1,982
Housing built before 1970
25.8%
Housing built 2000 or later
26.2%
Median annual property tax
$7,486
Mean commute to work
29 min
Households with broadband internet
82.1%

Source: Census ACS 5-year estimates (ZIP-level)

Employment & development

Total county employment
103,725
Average weekly wage
$1,047
Top industries (by employment)
Health Care, Accommodation & Food, Wholesale Trade
Annual residential building permits (county)
670

Sources: BLS QCEW (county-level) · Census Building Permits (county-level)

How it compares

WilliamstownState medianUS median
Median home value$375,599$577,759$289,727
Median sale price$367,500$555,000$325,000
Median days on market42 days42 days51 days
Typical rent$2,850/mo$2,540/mo$1,808/mo
Median annual property tax$7,486$9,504$2,006

State and US medians are computed across all US ZIP codes with sufficient public-data coverage, from the same sources as the figures above.

Area data compiled from public government, academic, and industry research feeds. Data sources →

Common questions

What is the median home value in Williamstown, NJ?
$375,599.
What is the median sale price in Williamstown, NJ?
$367,500.
How long do homes take to sell in Williamstown, NJ?
Median days on market: 42 days.
What is typical rent in Williamstown, NJ?
Typical rent: $2,850/month.
What is the natural-hazard risk in Williamstown, NJ?
Overall risk: Relatively Moderate (FEMA NRI, county-level). Top hazards: winterWeather, coastalFlooding, iceStorm, lightning, strongWind.
Is Williamstown, NJ in a flood zone?
High (FEMA NFIP). FEMA flood zone A.
What is the wildfire risk in Williamstown, NJ?
Risk to homes is higher than 53% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
What is the radon potential in Williamstown, NJ?
Moderate radon potential — EPA Zone 2 of 3, county-level. EPA recommends testing every home regardless of zone.
Are there Superfund sites near Williamstown, NJ?
1 current or proposed National Priorities List site within 5 miles (EPA). Nearest site: King of Prussia, 4.1 mi.
How many schools serve Williamstown, NJ?
7 schools (5 elementary, 1 middle, 1 high) (NCES, 2022-23).
Is Williamstown, NJ walkable?
Walkability index: 12.2/20 (EPA Smart Location Database).
What is the air quality in Williamstown, NJ?
Good. Median AQI: 43. (EPA AQI).
What is the cost of living in Williamstown, NJ?
Regional Price Parity: 112.5 (100 = US average) (High) (BEA RPP, metro/state-level).

ZIP code for Williamstown

Selling a home in Williamstown, NJ?

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Data last updated

Most recent source refresh: Sep 2026. See all data sources →

Data compiled by REAIGENT7 — AI listing platform for real estate agents