Population 37,677 · Census ACS 2020–24
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Population and households in Williamstown
Household size in Williamstown
| Period | Williamstown | Philadelphia area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.90 | 2.64 | 2.77 | 2.68 |
| 2010–14 | 2.84 | 2.68 | 2.82 | 2.73 |
| 2015–19 | 2.80 | 2.65 | 2.78 | 2.71 |
| 2020–24 | 2.78 | 2.57 | 2.76 | 2.65 |
| Change | −0.12 | −0.07 | −0.01 | −0.03 |
The typical household in Williamstown holds 2.78 people, slightly more than the U.S. average of 2.65. Household size has dropped from 2.90 in 2006–10, a much bigger shift than nationally.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Williamstown
| Period | Williamstown | Philadelphia area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 39.3 | 38.5 | 39.1 | 37.7 |
| 2010–14 | 40.7 | 39.3 | 40.0 | 38.6 |
| 2015–19 | 41.3 | 40.3 | 41.0 | 39.6 |
| 2020–24 | 42.3 | 40.4 | 40.9 | 40.1 |
| Change | +3.0 | +1.9 | +1.8 | +2.3 |
Williamstown skews a little older than the country: its median age is 42.3, against 40.1 nationally. The median age has climbed from 39.3 in 2006–10, in line with the national trend. Residents skew youngest in the south and oldest in the north.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Williamstown
| Period | Williamstown | Philadelphia area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.4% | 12.2% | 11.6% | 12.3% |
| 2010–14 | 11.6% | 11.8% | 11.8% | 12.3% |
| 2015–19 | 10.1% | 11.7% | 10.8% | 11.6% |
| 2020–24 | 12.3% | 12.1% | 11.3% | 11.6% |
| Change | +2.9 pts | −0.1 pts | −0.4 pts | −0.6 pts |
Single-parent households are about as common in Williamstown as they are nationally: 12.3%, against 11.6%. Since 2006–10, the single-parent share has risen 2.9 points, even as the national share fell. Williamstown has a higher share of single-parent households than at least four in five New Jersey cities.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Williamstown
Renters in Williamstown
| Period | Williamstown | Philadelphia area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 15.2% | 30.2% | 33.1% | 33.3% |
| 2010–14 | 17.2% | 32.1% | 35.0% | 35.6% |
| 2015–19 | 13.8% | 32.7% | 36.1% | 36.0% |
| 2020–24 | 15.3% | 33.2% | 36.2% | 34.8% |
| Change | +0.0 pts | +3.0 pts | +3.1 pts | +1.5 pts |
Only 15.3% of households in Williamstown rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. About three in ten owners (29.9%) have paid off their mortgages, below the national share of 39.8%.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Williamstown
| Period | Williamstown | Philadelphia area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.9% | 9.1% | 9.1% | 11.4% |
| 2010–14 | 7.7% | 9.2% | 9.3% | 11.4% |
| 2015–19 | 6.9% | 9.0% | 9.3% | 11.1% |
| 2020–24 | 6.1% | 6.9% | 6.6% | 9.6% |
| Change | −1.8 pts | −2.2 pts | −2.5 pts | −1.8 pts |
Fewer homes sit empty in Williamstown than nationally: 6.1%, against 9.6% for the U.S. The picture is much the same across the Philadelphia area. Vacancy is down 1.8 points from 2006–10, as it has nationally.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Williamstown
| Period | Williamstown | Philadelphia area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 1982 | 1964 | 1965 | 1974 |
| 2010–14 | 1983 | 1965 | 1966 | 1975 |
| 2015–19 | 1983 | 1965 | 1967 | 1977 |
| 2020–24 | 1988 | 1968 | 1969 | 1980 |
| Change | +6 | +4 | +5 | +6 |
Williamstown has newer housing than the country as a whole: the median home was built in 1988, versus 1980 nationally. The median year built has moved up from 1982 in 2006–10, a sign of steady new building. Of the 415 New Jersey cities with 5,000+ people, only 33 have newer homes.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Williamstown
| Period | Williamstown | Philadelphia area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | $982 | $1,049 | $1,246 | $965 |
| 2010–14 | $1,039 | $1,147 | $1,324 | $1,040 |
| 2015–19 | $1,290 | $1,281 | $1,522 | $1,213 |
| 2020–24 | $1,550 | $1,631 | $1,896 | $1,571 |
| Change | +$567 | +$582 | +$651 | +$606 |
The median renter in Williamstown pays $1,550 a month for rent and utilities, close to the national median of $1,571. Rent has climbed $567 a month since 2006–10, up 58%, a slower climb than the nation's. The typical renter here spends 27.6% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Renters on a budget will find the lowest rents in the west; the highest are in the south.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Williamstown
Bachelor's degrees in Williamstown
| Period | Williamstown | Philadelphia area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 22.4% | 32.7% | 34.7% | 28.4% |
| 2010–14 | 24.9% | 34.4% | 36.4% | 29.6% |
| 2015–19 | 26.2% | 37.9% | 39.6% | 32.1% |
| 2020–24 | 31.1% | 42.3% | 43.4% | 35.6% |
| Change | +8.7 pts | +9.6 pts | +8.6 pts | +7.2 pts |
Just over three in ten adults 25 and older in Williamstown (31.1%) have a bachelor's degree or higher, a little below the national share of 35.6%. The share with a degree has risen 8.7 points since 2006–10, as it has nationally. College graduates are most concentrated in the south and least in the northwest.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Williamstown
| Period | Williamstown | Philadelphia area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 85.5% | 87.5% | 87.0% | 84.9% |
| 2010–14 | 88.6% | 88.9% | 88.1% | 86.1% |
| 2015–19 | 91.4% | 90.5% | 89.5% | 87.7% |
| 2020–24 | 93.5% | 91.9% | 90.2% | 89.3% |
| Change | +8.0 pts | +4.4 pts | +3.2 pts | +4.3 pts |
High school completion in Williamstown is above the national rate: 93.5% of adults have a diploma, against 89.3%. The share with a diploma is up 8.0 points from 2006–10, mirroring the country.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Williamstown
| Period | Williamstown | Philadelphia area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.6% | 8.4% | 7.9% | 8.1% |
| 2010–14 | 11.5% | 10.2% | 9.8% | 9.4% |
| 2015–19 | 5.7% | 6.3% | 5.6% | 5.6% |
| 2020–24 | 6.7% | 6.1% | 6.4% | 5.4% |
| Change | −1.9 pts | −2.3 pts | −1.5 pts | −2.7 pts |
Unemployment runs a little high in Williamstown: 6.7% of the labor force was out of work and looking, against 5.4% nationally. Unemployment is down 1.9 points from 2006–10, as it has nationally. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Williamstown compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Williamstown | 2.78 | 42.3 | 12.3% | 15.3% | 6.1% | 1988 | $1,550 | 31.1% | 93.5% | 6.7% |
| Sicklerville | 2.84 | 39.2 | 15.2% | 16.2% | 5.5% | 1989 | $1,783 | 36.1% | 95.2% | 5.4% |
| Braddock | 1.97 | 60.3 | 15.0% | 27.8% | 4.4% | 1974 | $1,175 | 21.3% | 93.0% | 6.8% |
| Victory Lakes | 2.50 | 46.5 | 10.3% | 10.0% | 3.0% | 1985 | $1,453 | 17.1% | 90.3% | 11.7% |
| Franklinville | 2.85 | 43.9 | 10.3% | 11.0% | 6.9% | 1982 | $1,614 | 24.2% | 90.0% | 5.6% |
| Clayton | 2.67 | 39.2 | 14.2% | 17.9% | 6.7% | 1979 | $1,390 | 24.2% | 93.6% | 6.9% |
| Iona | 2.67 | 43.1 | 12.2% | 18.2% | 10.2% | 1975 | $1,683 | 23.5% | 85.7% | 6.8% |
| Winslow | 1.97 | 60.3 | 15.0% | 27.8% | 4.4% | 1974 | $1,175 | 21.3% | 93.0% | 6.8% |
| Glassboro | 2.42 | 33.1 | 9.2% | 38.9% | 10.5% | 1983 | $1,799 | 47.0% | 92.4% | 7.5% |
| Chesilhurst | 2.66 | 50.3 | 8.7% | 9.8% | 7.0% | 1975 | $897 | 14.4% | 87.2% | 7.6% |
| Pine Valley | 2.77 | 39.9 | 16.7% | 10.9% | 4.6% | 1970 | $2,118 | 21.5% | 94.5% | 7.4% |
All figures 2020–24.
Cities with similar populations: Clementon, NJ · Natick, MA · Pleasant Grove, UT · Parkland, WA · Pacifica, CA · Okeechobee, FL · Oildale, CA · Odenton, MD · Oakville, MO · Oak Creek, WI
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Williamstown. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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