Dover, New Jersey demographics

Dover, NJ demographics: median age 39.8; 17.3% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Dover town, New Jersey · Incorporated town · GEOID 3418070. The survey estimates a population of 18,563 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Dover is 39.8 years, with a 90% margin of error of 2.8 years. There are 6,661 households (±355). 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	39.8 ±2.8	40.1 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 18,563
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Under 18	3,590 ±580	19.3% ±3.1 pp	21.8%	22.0%
18–34	4,465 ±583	24.1% ±3.1 pp	21.3%	22.8%
35–64	7,654 ±798	41.2% ±4.3 pp	39.7%	38.0%
65 and older	2,854 ±463	15.4% ±2.5 pp	17.2%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 18,563
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Male	8,891 ±453	47.9% ±2.4 pp	49.2%	49.5%
Female	9,672 ±448	52.1% ±2.4 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: 18,563
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
White alone	3,933 ±1,158	21.2% ±6.2 pp	54.0%	61.0%
Black or African American alone	1,080 ±459	5.8% ±2.5 pp	12.8%	12.2%
American Indian and Alaska Native alone	54 ±73 · low precision	0.3% ±0.4 pp · low precision	0.6%	0.9%
Asian alone	396 ±280 · low precision	2.1% ±1.5 pp · low precision	10.1%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±22 · low precision	0.0% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	8,795 ±1,379	47.4% ±7.4 pp	10.1%	7.1%
Two or more races	4,305 ±984	23.2% ±5.3 pp	12.4%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 18,563
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Not Hispanic or Latino	4,389 ±763	23.6% ±4.1 pp	77.5%	80.7%
Hispanic or Latino	14,174 ±770	76.4% ±4.1 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: 6,661
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Married-couple family	3,229 ±360	48.5% ±4.7 pp	49.8%	46.9%
Other family: male householder, no spouse present	533 ±193	8.0% ±2.9 pp	5.1%	5.1%
Other family: female householder, no spouse present	1,093 ±278	16.4% ±4.1 pp	12.9%	12.2%
Nonfamily: householder living alone	1,531 ±364	23.0% ±5.3 pp	26.4%	28.7%
Nonfamily: householder not living alone	275 ±132	4.1% ±2.0 pp	5.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 6,661
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Households with people under 18	2,397 ±376	36.0% ±5.3 pp	31.2%	29.5%
Households without people under 18	4,264 ±544	64.0% ±7.4 pp	68.8%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 6,661
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
One-person nonfamily households	1,531 ±364	23.0% ±5.3 pp	26.4%	28.7%
Two-person households	1,613 ±372	24.2% ±5.4 pp	31.1%	33.8%
Three-person households	1,440 ±377	21.6% ±5.5 pp	17.1%	15.3%
Four-person households	814 ±282	12.2% ±4.2 pp	15.2%	12.6%
Five-person households	1,073 ±410	16.1% ±6.1 pp	6.3%	5.9%
Six-person households	166 ±128 · low precision	2.5% ±1.9 pp · low precision	2.3%	2.2%
Seven or more people	24 ±61 · low precision	0.4% ±0.9 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: 18,563
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Native	9,180 ±876	49.5% ±4.7 pp	76.1%	85.9%
Foreign born	9,383 ±880	50.5% ±4.7 pp	23.9%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 17,730
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
English only	4,098 ±664	23.1% ±3.7 pp	66.9%	77.7%
Spanish	12,990 ±835	73.3% ±4.6 pp	17.2%	13.6%
French, Haitian, or Cajun	23 ±43 · low precision	0.1% ±0.2 pp · low precision	1.1%	0.7%
German or other West Germanic	18 ±32 · low precision	0.1% ±0.2 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	18 ±21 · low precision	0.1% ±0.1 pp · low precision	1.7%	0.7%
Other Indo-European	300 ±229 · low precision	1.7% ±1.3 pp · low precision	5.6%	2.0%
Korean	42 ±69 · low precision	0.2% ±0.4 pp · low precision	0.9%	0.3%
Chinese, including Mandarin and Cantonese	0 ±22 · low precision	0.0% ±0.1 pp · low precision	1.5%	1.1%
Vietnamese	39 ±69 · low precision	0.2% ±0.4 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	151 ±214 · low precision	0.9% ±1.2 pp · low precision	0.9%	0.6%
Other Asian and Pacific Island	51 ±63 · low precision	0.3% ±0.4 pp · low precision	1.6%	1.1%
Arabic	0 ±22 · low precision	0.0% ±0.1 pp · low precision	0.9%	0.5%
Other and unspecified	0 ±22 · low precision	0.0% ±0.1 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: 13,289
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Less than high school graduate	3,000 ±621	22.6% ±4.6 pp	9.3%	10.4%
High school graduate or equivalency	4,559 ±615	34.3% ±4.4 pp	25.3%	26.0%
Some college, no degree	2,430 ±538	18.3% ±4.0 pp	15.0%	19.1%
Associate’s degree	996 ±289	7.5% ±2.2 pp	6.7%	8.8%
Bachelor’s degree	1,782 ±377	13.4% ±2.8 pp	26.1%	21.6%
Graduate or professional degree	522 ±182	3.9% ±1.4 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: 18,447
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Same house	16,330 ±1,116	88.5% ±6.0 pp	90.4%	87.7%
Moved within same county	1,404 ±1,081 · low precision	7.6% ±5.9 pp · low precision	4.4%	6.3%
Moved from a different county in the same state	340 ±248 · low precision	1.8% ±1.3 pp · low precision	2.5%	3.1%
Moved from a different state	73 ±66 · low precision	0.4% ±0.4 pp · low precision	1.8%	2.3%
Moved from abroad	300 ±316 · low precision	1.6% ±1.7 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

24.5% of Dover residents (±3.8 percentage points) had no health insurance coverage when surveyed, compared with 7.5% in New Jersey and 8.4% nationally. 93.4% 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	Dover	New Jersey	U.S.	Compared with New Jersey
People without health insurance Civilian noninstitutionalized population	24.5% ±3.8 pp	7.5%	8.4%	Higher
Households with a broadband subscription Households	93.4% ±2.5 pp	92.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	1.8% ±0.9 pp	3.7%	6.2%	Lower

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 Dover . 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 Dover housing and cost context or return to the city profile.