The Town FilesWilliamstown, New Jersey
Community in Gloucester County · population 15,082 (2020 Census)
- Median home
- $278,600
- Household income
- $89,414
- Jan low / Jul high
- 24° / 87°
- Snow a year
- 19 in
- Tornadoes ≤10 mi since 1950
- 6
- Median age
- 42.7
Williamstown is a community of 15,082 people in Gloucester County, New Jersey. The median home is worth $278,600, below the typical New Jersey town ($435,600). It ranks easier by car than 82% of New Jersey towns, better for cycling than 80% of New Jersey towns, better for first-time buyers than 76% of New Jersey towns.
How Williamstown ranks
Percentile among New Jersey towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of New Jersey towns.
Homes and cost of living
The median home in Williamstown is worth $278,600, below the typical New Jersey town ($435,600). Homes cost about 3.1 times the median household income of $89,414, which is more affordable than 77% of New Jersey towns. Median rent is $1,266 a month. 81.7% of households own their home.
| Housing | Williamstown | Typical New Jersey town |
|---|---|---|
| Median home value | $278,600 | $435,600 |
| Median rent | $1,266 | $1,774 |
| Median household income | $89,414 | $111,891 |
| Home value ÷ income | 3.1× | 3.8× |
| Homeownership | 81.7% | 80.8% |
| Median year built | 1981 | 1969 |
| Seasonal / vacation homes | 0.0% | — |
Who lives in Williamstown
| People | Williamstown | Typical New Jersey town |
|---|---|---|
| Median age | 42.7 | 42.7 |
| Age 65 and over | 17.1% | 18.3% |
| Under 18 | 18.2% | — |
| Bachelor's degree or higher | 29.6% | 44.1% |
| Below the poverty line | 8.3% | 5.7% |
| Veterans | 6.0% | — |
| Born outside the U.S. | 3.7% | — |
| Work from home | 11.9% | 16.3% |
| Average commute | 31.9 min | 30.4 min |
| Homes with broadband | 90.5% | 94.6% |
Weather in Williamstown
July highs average 87.3°F and January lows 23.9°F. About 47.5 inches of rain and melted snow fall a year, with 19.0 inches of snow (typical New Jersey town: 24.5 in). Expect about 28 days a year at 90°F or hotter and 105 nights at or below freezing.
Tornadoes, storms and disasters
6 tornadoes have passed within 10 miles of Williamstown since 1950, compared with 9 for the typical New Jersey town. The strongest, an EF1, struck on May 16, 2025 about 3.1 miles from the town center. The most recent was on May 16, 2025.
Hail of 1 inch or larger has been reported within 10 miles 30 times; the largest was 1.75 inches on August 10, 2008.
Severe weather in Gloucester County since 1996
Gloucester County has been included in 28 federal disaster or emergency declarations since 1953, most often for fire, flood, other.
| Declared | Incident | Declaration |
|---|---|---|
| September 5, 2021 | Hurricane | DR-4614: Remnants Of Hurricane Ida |
| September 2, 2021 | Hurricane | EM-3573: Remnants Of Hurricane Ida |
| December 11, 2020 | Hurricane | DR-4574: Tropical Storm Isaias |
| March 25, 2020 | Biological | DR-4488: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3451: Covid-19 |
Jobs and pay in Gloucester County
Gloucester County had 124,439 jobs in 2024, paying an average of $58,070 a year. Unemployment was 4.3% in 2023; in Williamstown itself the ACS puts it at 5.6%.
Public schools in Williamstown
7 public schools with 5,871 students, about 11.7 students per teacher.
| School | Grades | Students | Per teacher |
|---|---|---|---|
| Williamstown High School | 9-12 | 1,773 | 14.2 |
| Williamstown Middle School | 5-8 | 1,744 | 11.5 |
| Oak Knoll Elementary School | PK-4 | 637 | 11.4 |
| Radix Elementary | PK-4 | 604 | 10.2 |
| Holly Glen Elementary School | PK-4 | 515 | 9.4 |
| Whitehall Elementary School | PK-4 | 384 | 9.8 |
| Collings Lakes Elementary School | PK-2 | 214 | 13.4 |
Towns near Williamstown
- Monroe, NJ1.7 mi · 37,117 people · home $283,100
- Winslow, NJ3.4 mi · 39,907 people · home $272,800
- Sicklerville, NJ4.2 mi · 45,084 people · home $278,900
- Clayton, NJ5.8 mi · 8,807 people · home $252,300
- Franklin, NJ6.5 mi · 16,380 people · home $306,800
- Washington, NJ6.9 mi · 48,677 people · home $337,600
- Pine Hill, NJ7.0 mi · 10,743 people · home $204,600
- Turnersville, NJ7.5 mi · 3,594 people · home $371,000
Williamstown questions
Is Williamstown, New Jersey a good place to retire?
On The Town Files lifestyle rankings, Williamstown scores better for retirees than 19% of New Jersey towns and quieter than 36%. 17.1% of residents are 65 or older (median age 42.7).
How much does a house cost in Williamstown?
The median owner-occupied home in Williamstown is valued at $278,600 (Census ACS 2020–2024), against a median household income of $89,414, so homes cost about 3.1 times income. Median rent is $1,266 a month.
What is the weather like in Williamstown?
July highs average 87.3°F and January lows 23.9°F (NOAA 1991–2020 normals). It gets about 47.5 inches of precipitation a year and 19.0 inches of snow.
Does Williamstown get tornadoes?
6 tornadoes have passed within 10 miles of Williamstown since 1950 (NOAA Storm Events); the strongest was an EF1 on May 16, 2025. The typical New Jersey town has had 9.
- U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024)
- U.S. Census Bureau, 2020 Census and 2025 Gazetteer (2020 / 2025)
- NOAA NCEI U.S. Climate Normals (1991–2020)
- NOAA NCEI Storm Events Database (1950–2026)
- FEMA OpenFEMA Disaster Declarations (this product uses the FEMA OpenFEMA API but is not endorsed by FEMA) (1953–2026)
- NCES Common Core of Data (2023–24)
- BLS Quarterly Census of Employment and Wages; USDA ERS county unemployment (BLS LAUS) (2000–2024)
- The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025)