Kenilworth, NJ Demographics

Population 8,451 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Kenilworth, NJ map of median age by neighborhood
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Population and households in Kenilworth

Household size in Kenilworth

Household size, people per household
PeriodKenilworthNew York areaNew JerseyU.S.
2006–102.772.792.772.68
2010–143.102.852.822.73
2015–192.962.822.782.71
2020–242.972.792.762.65
Change+0.20−0.00−0.01−0.03
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Kenilworth is a place of big households: 2.97 people per home on average, compared with 2.65 nationally. Numbers like that usually point to plenty of families with kids. Since 2006–10, household size has climbed from 2.77, even as the national average fell.

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 Kenilworth

Median age, years
PeriodKenilworthNew York areaNew JerseyU.S.
2006–1043.338.039.137.7
2010–1442.838.740.038.6
2015–1938.839.841.039.6
2020–2443.040.440.940.1
Change−0.2+2.4+1.8+2.3
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Kenilworth skews older than the country: its median age is 43.0, against 40.1 nationally. The youngest areas are in the northwest, the oldest in the southwest.

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 Kenilworth

Single-parent households, % of households
PeriodKenilworthNew York areaNew JerseyU.S.
2006–1011.3%13.1%11.6%12.3%
2010–1410.2%12.8%11.8%12.3%
2015–1911.3%11.4%10.8%11.6%
2020–2415.6%11.6%11.3%11.6%
Change+4.4 pts−1.5 pts−0.4 pts−0.6 pts
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Single parents head nearly one in six households in Kenilworth (15.6%), well above the national share of 11.6%. Since 2006–10, the single-parent share has risen 4.4 points, even as the national share fell. Only 35 of the 415 New Jersey cities with 5,000+ people have a higher share of single-parent households.

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 Kenilworth

Renters in Kenilworth

Renters, % of occupied homes
PeriodKenilworthNew York areaNew JerseyU.S.
2006–1018.2%47.1%33.1%33.3%
2010–1418.2%48.7%35.0%35.6%
2015–1930.1%48.8%36.1%36.0%
2020–2425.7%48.6%36.2%34.8%
Change+7.5 pts+1.5 pts+3.1 pts+1.5 pts
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Most households in Kenilworth own their homes; 25.7% rent, below the national share of 34.8%. Among homeowners, 44.7% have no mortgage at all, above the national share of 39.8%. Renting is most common in the northwest and least common in the southwest. Since 2006–10, the renter share has risen 7.5 points, a much bigger shift than nationally.

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 Kenilworth

Vacant homes, % of all homes
PeriodKenilworthNew York areaNew JerseyU.S.
2006–101.5%9.1%9.1%11.4%
2010–143.1%9.0%9.3%11.4%
2015–197.1%9.1%9.3%11.1%
2020–249.0%7.9%6.6%9.6%
Change+7.5 pts−1.2 pts−2.5 pts−1.8 pts
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Vacancy in Kenilworth is close to the national rate: 9.0% of homes are empty, against 9.6%. Vacancy is up 7.5 points from 2006–10, even as the national rate fell. Kenilworth has a higher vacancy rate than at least four in five New Jersey cities.

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 Kenilworth

Age of homes, median year built
PeriodKenilworthNew York areaNew JerseyU.S.
2006–101957195719651974
2010–141956195819661975
2015–191955195919671977
2020–241956196219691980
Change−0+5+5+6
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The housing in Kenilworth is old by national standards: the median home dates to 1956, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. Newer construction is concentrated in the center, while the southwest has the oldest housing. Kenilworth has older homes than at least four in five New Jersey cities.

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 Kenilworth

Rent, per month
PeriodKenilworthNew York areaNew JerseyU.S.
2006–10$1,276$1,268$1,246$965
2010–14$1,535$1,377$1,324$1,040
2015–19$1,627$1,645$1,522$1,213
2020–24$2,111$2,060$1,896$1,571
Change+$835+$792+$651+$606
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A typical rental in Kenilworth costs $2,111 a month with utilities, well above the national median of $1,571. Rents are up $835 a month from 2006–10, a 65% jump, roughly in step with the nation. Rent takes 29.4% of the typical renter's income, just under the 30% mark often used to define affordable rent. The priciest rents are in the east; the most affordable are in the north.

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 Kenilworth

Bachelor's degrees in Kenilworth

Bachelor's degrees, % of adults 25+
PeriodKenilworthNew York areaNew JerseyU.S.
2006–1017.6%35.0%34.7%28.4%
2010–1426.1%36.7%36.4%29.6%
2015–1928.6%39.9%39.6%32.1%
2020–2432.2%43.6%43.4%35.6%
Change+14.6 pts+8.6 pts+8.6 pts+7.2 pts
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Nearly a third of adults 25 and older in Kenilworth (32.2%) have a bachelor's degree or higher, a little below the national share of 35.6%. The share with a degree is up 14.6 points from 2006–10, in line with the national trend. College graduates are most concentrated in the east 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 Kenilworth

High school graduates, % of adults 25+
PeriodKenilworthNew York areaNew JerseyU.S.
2006–1088.0%83.7%87.0%84.9%
2010–1486.4%84.6%88.1%86.1%
2015–1988.0%86.2%89.5%87.7%
2020–2490.3%86.9%90.2%89.3%
Change+2.2 pts+3.3 pts+3.2 pts+4.3 pts
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About as many adults in Kenilworth have finished high school as nationally: 90.3%, against 89.3%. The rate is higher than in the New York area overall (86.9%). The share with a diploma has risen 2.2 points since 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 Kenilworth

Unemployment, % of the labor force
PeriodKenilworthNew York areaNew JerseyU.S.
2006–105.6%7.9%7.9%8.1%
2010–149.7%9.5%9.8%9.4%
2015–193.6%5.7%5.6%5.6%
2020–245.3%6.9%6.4%5.4%
Change−0.2 pts−0.9 pts−1.5 pts−2.7 pts
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Unemployment in Kenilworth is close to the national rate: 5.3% of the labor force, against 5.4%. The rate is lower than in the New York area overall (6.9%). 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).

Kenilworth compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Kenilworth2.9743.015.6%25.7%9.0%1956$2,11132.2%90.3%5.3%
Cranford2.6343.14.4%22.5%3.2%1950$2,05767.5%97.4%3.8%
Roselle Park2.6840.511.6%41.0%3.7%1953$1,64440.4%92.1%5.0%
Union2.8941.89.6%25.8%5.2%1960$2,00841.6%88.8%5.8%
Springfield2.5345.06.4%33.1%5.6%1963$2,46063.7%94.6%4.6%
Garwood2.3442.84.9%43.4%3.4%1950$1,67645.2%96.5%6.2%
Roselle2.7939.411.2%45.8%4.3%1958$1,63027.9%85.7%8.0%
Vauxhall2.8840.315.0%50.7%6.7%1963$2,00731.8%89.9%3.8%
Westfield2.9341.86.0%19.3%3.5%1951$2,26078.1%97.8%4.0%
Millburn2.9139.97.2%28.8%9.9%1946$2,38484.4%97.1%5.5%
Mountainside2.8546.05.5%11.9%3.5%1957$3,33468.6%96.9%3.9%

All figures 2020–24.

Cities with similar populations: Brush Prairie, WA · Tylertown, MS · Uhrichsville, OH · Brentwood, MO · Bridgeville, DE · Bristol, IN · Stewartstown, PA · Stayton, OR · Stanford, KY · Sturtevant, 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 Kenilworth. 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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