Dunellen, New Jersey demographics

Dunellen, NJ demographics: median age 42.5; 28.2% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Dunellen borough, New Jersey · Incorporated borough · GEOID 3418490. The survey estimates a population of 7,911 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Dunellen is 42.5 years, with a 90% margin of error of 2.7 years. There are 2,610 households (±286). Age and household distributions show how these totals are composed; they do not establish which neighborhood suits a particular person.

Every count and share is an estimate. “±” is a 90% margin of error (MOE); pp means percentage points. Derived shares use the category count divided by the named universe. Aggregated category MOEs and percentage MOEs are approximate. A margin larger than half its estimate is flagged as low precision. Blank source uncertainty is shown as unavailable, never zero.

Age distribution and sex

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe	City estimate ± MOE	State estimate ± MOE	U.S. estimate ± MOE
Median age Total population · years	42.5 ±2.7	40.1 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 7,911
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Under 18	1,797 ±485	22.7% ±6.1 pp	21.8%	22.0%
18–34	1,378 ±377	17.4% ±4.8 pp	21.3%	22.8%
35–64	3,683 ±517	46.6% ±6.5 pp	39.7%	38.0%
65 and older	1,053 ±312	13.3% ±3.9 pp	17.2%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 7,911
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Male	4,415 ±328	55.8% ±4.1 pp	49.2%	49.5%
Female	3,496 ±328	44.2% ±4.1 pp	50.8%	50.5%

The age groups are mutually exclusive and cover the entire population. The sex categories follow this ACS table’s published classification; they are not a survey of gender identity.

Race and Hispanic origin

Race · B02001 · ACS 2020–2024 Total population: 7,911
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
White alone	3,462 ±651	43.8% ±8.2 pp	54.0%	61.0%
Black or African American alone	391 ±323 · low precision	4.9% ±4.1 pp · low precision	12.8%	12.2%
American Indian and Alaska Native alone	0 ±20 · low precision	0.0% ±0.3 pp · low precision	0.6%	0.9%
Asian alone	486 ±137	6.1% ±1.7 pp	10.1%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±20 · low precision	0.0% ±0.3 pp · low precision	0.0%	0.2%
Some other race alone	2,106 ±683	26.6% ±8.6 pp	10.1%	7.1%
Two or more races	1,466 ±545	18.5% ±6.9 pp	12.4%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 7,911
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Not Hispanic or Latino	4,332 ±656	54.8% ±8.3 pp	77.5%	80.7%
Hispanic or Latino	3,579 ±658	45.2% ±8.3 pp	22.5%	19.3%

Hispanic origin and race are separate questions. People of Hispanic or Latino origin may be of any race and appear in both tables. Do not add the Hispanic share to race shares. Race alone and two-or-more-race groups are the mutually exclusive categories of the race table.

Household types, children and living alone

Household types · B11001 · ACS 2020–2024 Households: 2,610
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Married-couple family	1,525 ±226	58.4% ±5.8 pp	49.8%	46.9%
Other family: male householder, no spouse present	158 ±123 · low precision	6.1% ±4.7 pp · low precision	5.1%	5.1%
Other family: female householder, no spouse present	303 ±193 · low precision	11.6% ±7.3 pp · low precision	12.9%	12.2%
Nonfamily: householder living alone	449 ±218	17.2% ±8.1 pp	26.4%	28.7%
Nonfamily: householder not living alone	175 ±113 · low precision	6.7% ±4.3 pp · low precision	5.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 2,610
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Households with people under 18	853 ±154	32.7% ±4.7 pp	31.2%	29.5%
Households without people under 18	1,757 ±371	67.3% ±12.2 pp	68.8%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 2,610
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
One-person nonfamily households	449 ±218	17.2% ±8.1 pp	26.4%	28.7%
Two-person households	774 ±283	29.7% ±10.3 pp	31.1%	33.8%
Three-person households	450 ±155	17.2% ±5.6 pp	17.1%	15.3%
Four-person households	330 ±172 · low precision	12.6% ±6.5 pp · low precision	15.2%	12.6%
Five-person households	548 ±172	21.0% ±6.2 pp	6.3%	5.9%
Six-person households	59 ±61 · low precision	2.3% ±2.3 pp · low precision	2.3%	2.2%
Seven or more people	0 ±28 · low precision	0.0% ±1.1 pp · low precision	1.6%	1.4%

A family household contains related people under the Census definition. A nonfamily household can contain one person or unrelated people sharing a home. Households with children can also appear in the household-type and size tables, so those tables must not be added together. Household estimates exclude people living in group quarters from the household universe.

Nativity and languages spoken at home

Nativity · B05002 · ACS 2020–2024 Total population: 7,911
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Native	5,404 ±520	68.3% ±6.6 pp	76.1%	85.9%
Foreign born	2,507 ±522	31.7% ±6.6 pp	23.9%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 7,487
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
English only	4,039 ±689	53.9% ±9.1 pp	66.9%	77.7%
Spanish	2,920 ±515	39.0% ±6.8 pp	17.2%	13.6%
French, Haitian, or Cajun	0 ±20 · low precision	0.0% ±0.3 pp · low precision	1.1%	0.7%
German or other West Germanic	0 ±20 · low precision	0.0% ±0.3 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	37 ±55 · low precision	0.5% ±0.7 pp · low precision	1.7%	0.7%
Other Indo-European	289 ±168 · low precision	3.9% ±2.2 pp · low precision	5.6%	2.0%
Korean	0 ±20 · low precision	0.0% ±0.3 pp · low precision	0.9%	0.3%
Chinese, including Mandarin and Cantonese	0 ±20 · low precision	0.0% ±0.3 pp · low precision	1.5%	1.1%
Vietnamese	64 ±91 · low precision	0.9% ±1.2 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	96 ±112 · low precision	1.3% ±1.5 pp · low precision	0.9%	0.6%
Other Asian and Pacific Island	14 ±71 · low precision	0.2% ±0.9 pp · low precision	1.6%	1.1%
Arabic	0 ±20 · low precision	0.0% ±0.3 pp · low precision	0.9%	0.5%
Other and unspecified	28 ±49 · low precision	0.4% ±0.7 pp · low precision	1.1%	0.8%

Foreign born means not a U.S. citizen at birth; it includes naturalized citizens. Language categories describe speech at home among people age five and older. A language other than English at home does not establish that someone cannot speak English. This city page uses the published C16001 summary categories because the more detailed B16001 table does not provide these city records in this release.

Educational attainment

Highest completed education · B15003 · ACS 2020–2024 Population age 25 and older: 5,404
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Less than high school graduate	1,016 ±409	18.8% ±7.4 pp	9.3%	10.4%
High school graduate or equivalency	1,606 ±430	29.7% ±7.6 pp	25.3%	26.0%
Some college, no degree	773 ±342	14.3% ±6.2 pp	15.0%	19.1%
Associate’s degree	483 ±243 · low precision	8.9% ±4.4 pp	6.7%	8.8%
Bachelor’s degree	1,051 ±310	19.4% ±5.5 pp	26.1%	21.6%
Graduate or professional degree	475 ±158	8.8% ±2.8 pp	17.6%	14.1%

The denominator excludes residents under 25. Each person is counted in the highest attainment category they completed. This table does not measure the quality of local schools or the education level of every current student.

Residence one year earlier

Geographic mobility · B07003 · ACS 2020–2024 Population age 1 and older: 7,779
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Same house	7,574 ±225	97.4% ±2.1 pp	90.4%	87.7%
Moved within same county	123 ±121 · low precision	1.6% ±1.6 pp · low precision	4.4%	6.3%
Moved from a different county in the same state	82 ±82 · low precision	1.1% ±1.1 pp · low precision	2.5%	3.1%
Moved from a different state	0 ±20 · low precision	0.0% ±0.3 pp · low precision	1.8%	2.3%
Moved from abroad	0 ±20 · low precision	0.0% ±0.3 pp · low precision	0.8%	0.6%

These are respondents’ residence patterns one year before their survey response, pooled across the five-year window. They are not a net migration count for 2025. A person can move to a different house within the same city or county; moves within the same county should not automatically be interpreted as new arrivals to the city.

Health insurance, internet access and veterans

18.8% of Dunellen residents (±5.3 percentage points) had no health insurance coverage when surveyed, compared with 7.5% in New Jersey and 8.4% nationally. 94.4% of households subscribe to broadband of any type, including cellular data plans. A subscription is not the same as available service: the FCC National Broadband Map shows providers at a specific address.

City, state and U.S. shares · ACS 2020–2024
Measure	Dunellen	New Jersey	U.S.	Compared with New Jersey
People without health insurance Civilian noninstitutionalized population	18.8% ±5.3 pp	7.5%	8.4%	Higher
Households with a broadband subscription Households	94.4% ±14.4 pp	92.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	4.4% ±2.0 pp	3.7%	6.2%	Not statistically different

Reading and reusing the estimates

The Census table links above lead to the original detailed tables. Counts, source universes and uncertainty are retained in the source observation download for Dunellen . Compare these figures with the same survey window; do not compare one city’s five-year estimate with another city’s annual estimate as though they measured the same period. For methods, see uncertainty and denominator calculations.

Read Dunellen housing and cost context or return to the city profile.