New Jersey Gazetteer
Also See: Williamstown, NJ ZIP Codes & ZIP Code Maps
The Williamstown CDP(1) had a population of 15,346 as of July 1, 2021.
The primary coordinate point for Williamstown is located at latitude 39.6862 and longitude -74.9952 in Gloucester County. The formal boundaries for the Williamstown Census Designated Place encompass a land area of 7.42 sq. miles and a water area of 0 sq. miles. Gloucester County is in the Eastern time zone (GMT -5). The elevation is 144 feet.
The Williamstown Census Designated Place has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.
The Williamstown Census Designated Place is located within Township of Monroe, a minor civil division (MCD) of Gloucester County.
Alternate Unofficial Names for Williamstown: Squankum, Squankum Neck, Squankum Village, Williams Town.
POPULATION | |
|---|---|
| Total Population | 15,346 (100%) |
| Population in Households | 15,189 (99.0%) |
| Population in Families | 12,860 (83.8%) |
| Population in Group Quarters1 | 157 ( 1.0%) |
| Population Density | 2,068 |
| Diversity Index2 | 48 |
INCOME | |
| Median Household Income | $77,619 |
| Average Household Income | $89,955 |
| % of Income for Mortgage4 | 11% |
| Per Capita Income | $32,448 |
| Wealth Index5 | 99 |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 5,890 (100%) |
| Owner Occupied HU | 4,202 (71.3%) |
| Renter Occupied HU | 1,277 (21.7%) |
| Vacant Housing Units | 411 ( 7.0%) |
| Median Home Value | $209,346 |
| Average Home Value | $224,131 |
| Housing Affordability Index3 | 143 |
HOUSEHOLDS | |
| Total Households | 5,479 |
| Average Household Size | 2.77 |
| Family Households | 3,898 |
| Average Family Size | 3 |
GROWTH RATE / YEAR |
2010-2021 | 2021-2026 |
|---|---|---|
| Population | -0.13% | -0.02% |
| Households | -0.18% | -0.03% |
| Families | -0.31% | -0.09% |
| Median Household Income | 1.31% | |
| Per Capita Income | 2.21% | |
| Owner Occupied HU | 0.28% |
The table below compares Williamstown to the other 545 incorporated cities, towns and CDPs in New Jersey by rank and percentile using July 1, 2021 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 70 | 87th |
| Population Density | # 325 | 41st |
| Median Household Income | # 361 | 34th |
| Housing Affordability Index | # 395 | 72nd |
| Per Capita Income | # 453 | 17th |
| Diversity Index | # 241 | 56th |
Additional comparisons and rankings can be made with a VERY EASY TO USE New Jersey Census Data Comparison Tool.
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