Jamesburg, NJ Demographics

Population 47,090 · Census ACS 2020–24

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Jamesburg, NJ map of median age by neighborhood
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Population and households in Jamesburg

Household size in Jamesburg

Household size, people per household
PeriodJamesburgNew York areaNew JerseyU.S.
2006–102.792.792.772.68
2010–142.772.852.822.73
2015–192.752.822.782.71
2020–242.712.792.762.65
Change−0.08−0.00−0.01−0.03
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At 2.71 people per household, Jamesburg sits close to the national average of 2.65. The typical household here is smaller than in the wider New York area, where it has 2.79 people. Since 2006–10, household size has edged down from 2.79, mirroring the country.

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 Jamesburg

Median age, years
PeriodJamesburgNew York areaNew JerseyU.S.
2006–1045.738.039.137.7
2010–1448.338.740.038.6
2015–1950.239.841.039.6
2020–2450.340.440.940.1
Change+4.7+2.4+1.8+2.3
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Jamesburg skews older: half of its residents are older than 50.3, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. Since 2006–10, the median age has climbed from 45.7, as it has nationally. Of the 415 New Jersey cities with 5,000+ people, only 16 are older.

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 Jamesburg

Single-parent households, % of households
PeriodJamesburgNew York areaNew JerseyU.S.
2006–106.7%13.1%11.6%12.3%
2010–147.0%12.8%11.8%12.3%
2015–194.7%11.4%10.8%11.6%
2020–245.6%11.6%11.3%11.6%
Change−1.2 pts−1.5 pts−0.4 pts−0.6 pts
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Single parents head only 5.6% of households in Jamesburg, well below the national share of 11.6%. The single-parent share is down 1.2 points from 2006–10, mirroring the country.

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 Jamesburg

Renters in Jamesburg

Renters, % of occupied homes
PeriodJamesburgNew York areaNew JerseyU.S.
2006–1011.9%47.1%33.1%33.3%
2010–1412.5%48.7%35.0%35.6%
2015–1912.0%48.8%36.1%36.0%
2020–249.3%48.6%36.2%34.8%
Change−2.5 pts+1.5 pts+3.1 pts+1.5 pts
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Only 9.3% of households in Jamesburg rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. More than a third of owners (35.8%) have paid off their mortgages, below the national share of 39.8%. Rentals cluster in the center; owners are most common in the southeast. The renter share has fallen 2.5 points since 2006–10, even as the national share rose.

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 Jamesburg

Vacant homes, % of all homes
PeriodJamesburgNew York areaNew JerseyU.S.
2006–106.6%9.1%9.1%11.4%
2010–144.5%9.0%9.3%11.4%
2015–195.6%9.1%9.3%11.1%
2020–243.5%7.9%6.6%9.6%
Change−3.1 pts−1.2 pts−2.5 pts−1.8 pts
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Only 3.5% of homes in Jamesburg are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy has fallen 3.1 points since 2006–10, mirroring the country.

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 Jamesburg

Age of homes, median year built
PeriodJamesburgNew York areaNew JerseyU.S.
2006–101990195719651974
2010–141991195819661975
2015–191993195919671977
2020–241995196219691980
Change+5+5+5+6
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Jamesburg has newer housing than the country as a whole: the median home was built in 1995, versus 1980 nationally. The median year built has moved up from 1990 in 2006–10, a sign of steady new building. The newest homes are mostly in the southwest, the oldest in the northeast. Of the 415 New Jersey cities with 5,000+ people, only six 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 Jamesburg

Rent, per month
PeriodJamesburgNew York areaNew JerseyU.S.
2006–10$1,371$1,268$1,246$965
2010–14$1,537$1,377$1,324$1,040
2015–19$1,380$1,645$1,522$1,213
2020–24$2,053$2,060$1,896$1,571
Change+$682+$792+$651+$606
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The median renter in Jamesburg pays $2,053 a month for rent and utilities, well above the national median of $1,571. Rents are up $682 a month from 2006–10, a 50% rise, a slower climb than the nation's. Rent takes 40.5% of the typical renter's income, well over the 30% mark often used to define affordable rent, so many renters here are stretched.

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 Jamesburg

Bachelor's degrees in Jamesburg

Bachelor's degrees, % of adults 25+
PeriodJamesburgNew York areaNew JerseyU.S.
2006–1040.0%35.0%34.7%28.4%
2010–1442.7%36.7%36.4%29.6%
2015–1948.4%39.9%39.6%32.1%
2020–2455.8%43.6%43.4%35.6%
Change+15.8 pts+8.6 pts+8.6 pts+7.2 pts
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Jamesburg is highly educated: nearly six in ten adults 25 and older (55.8%) hold at least a bachelor's degree, far above the national share of 35.6%. Since 2006–10, the share with a degree has risen 15.8 points, in line with the national trend. College graduates are most concentrated in the southwest and least in the north.

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 Jamesburg

High school graduates, % of adults 25+
PeriodJamesburgNew York areaNew JerseyU.S.
2006–1091.7%83.7%87.0%84.9%
2010–1492.6%84.6%88.1%86.1%
2015–1994.2%86.2%89.5%87.7%
2020–2494.4%86.9%90.2%89.3%
Change+2.8 pts+3.3 pts+3.2 pts+4.3 pts
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High school completion is high in Jamesburg: 94.4% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Since 2006–10, the share with a diploma has risen 2.8 points, 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 Jamesburg

Unemployment, % of the labor force
PeriodJamesburgNew York areaNew JerseyU.S.
2006–106.4%7.9%7.9%8.1%
2010–149.4%9.5%9.8%9.4%
2015–194.8%5.7%5.6%5.6%
2020–244.5%6.9%6.4%5.4%
Change−1.9 pts−0.9 pts−1.5 pts−2.7 pts
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Jobs have been a little easier to find in Jamesburg than nationally: unemployment was 4.5%, against 5.4%. Unemployment has fallen 1.9 points since 2006–10, mirroring the country. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current 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).

Jamesburg compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Jamesburg2.7150.35.6%9.3%3.5%1995$2,05355.8%94.4%4.5%
Concordia1.5373.41.6%20.6%7.4%1989$2,02135.9%93.4%7.7%
Clearbrook Park1.3773.00.7%8.8%7.2%1979$1,74530.5%96.2%19.2%
Helmetta2.2944.28.1%29.4%3.8%1984$2,03239.5%95.7%6.8%
Twin Rivers2.8139.81.7%17.5%2.4%2012$2,02177.4%95.1%7.0%
Spotswood2.6844.510.9%14.6%2.5%1969$99539.7%93.5%7.0%
Dayton2.9742.32.6%11.3%2.2%1992$2,53171.1%94.4%5.9%
Englishtown2.8145.05.2%11.0%4.7%1987$2,20456.8%96.0%4.7%
Cranbury2.6051.55.6%30.9%3.8%1986$1,80159.9%96.3%3.5%
Hightstown2.6841.18.3%34.8%4.5%1973$1,72643.8%90.2%5.0%
East Brunswick3.0441.67.9%20.6%4.1%1972$2,20858.4%93.1%4.6%

All figures 2020–24.

Cities with similar populations: Shakopee, MN · Hanover, PA · Herndon, VA · Hutchinson, KS · Issaquah, WA · Marlton, NJ · Nacogdoches, TX · North Bethesda, MD · Opelika, AL · Painesville, OH

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 Jamesburg. 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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