Summit, New Jersey demographics

Summit, NJ demographics: median age 41.8; 72.5% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Summit city, New Jersey · Incorporated city · GEOID 3471430. The survey estimates a population of 22,705 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Summit is 41.8 years, with a 90% margin of error of 2.2 years. There are 8,341 households (±401). 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	41.8 ±2.2	40.1 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 22,705
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Under 18	5,581 ±520	24.6% ±2.3 pp	21.8%	22.0%
18–34	3,270 ±472	14.4% ±2.1 pp	21.3%	22.8%
35–64	10,549 ±852	46.5% ±3.8 pp	39.7%	38.0%
65 and older	3,305 ±401	14.6% ±1.8 pp	17.2%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 22,705
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Male	11,434 ±455	50.4% ±2.0 pp	49.2%	49.5%
Female	11,271 ±452	49.6% ±2.0 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: 22,705
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
White alone	15,692 ±947	69.1% ±4.2 pp	54.0%	61.0%
Black or African American alone	1,354 ±579	6.0% ±2.6 pp	12.8%	12.2%
American Indian and Alaska Native alone	0 ±26 · low precision	0.0% ±0.1 pp · low precision	0.6%	0.9%
Asian alone	1,649 ±272	7.3% ±1.2 pp	10.1%	6.0%
Native Hawaiian and Other Pacific Islander alone	20 ±31 · low precision	0.1% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	1,799 ±487	7.9% ±2.1 pp	10.1%	7.1%
Two or more races	2,191 ±481	9.6% ±2.1 pp	12.4%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 22,705
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Not Hispanic or Latino	19,727 ±589	86.9% ±2.6 pp	77.5%	80.7%
Hispanic or Latino	2,978 ±584	13.1% ±2.6 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: 8,341
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Married-couple family	4,906 ±294	58.8% ±2.1 pp	49.8%	46.9%
Other family: male householder, no spouse present	232 ±92	2.8% ±1.1 pp	5.1%	5.1%
Other family: female householder, no spouse present	758 ±202	9.1% ±2.4 pp	12.9%	12.2%
Nonfamily: householder living alone	1,768 ±401	21.2% ±4.7 pp	26.4%	28.7%
Nonfamily: householder not living alone	677 ±414 · low precision	8.1% ±4.9 pp · low precision	5.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 8,341
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Households with people under 18	3,186 ±257	38.2% ±2.5 pp	31.2%	29.5%
Households without people under 18	5,155 ±563	61.8% ±6.1 pp	68.8%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 8,341
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
One-person nonfamily households	1,768 ±401	21.2% ±4.7 pp	26.4%	28.7%
Two-person households	2,554 ±478	30.6% ±5.5 pp	31.1%	33.8%
Three-person households	1,500 ±277	18.0% ±3.2 pp	17.1%	15.3%
Four-person households	1,620 ±306	19.4% ±3.5 pp	15.2%	12.6%
Five-person households	699 ±246	8.4% ±2.9 pp	6.3%	5.9%
Six-person households	137 ±87 · low precision	1.6% ±1.0 pp · low precision	2.3%	2.2%
Seven or more people	63 ±38 · low precision	0.8% ±0.5 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: 22,705
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Native	18,437 ±599	81.2% ±2.6 pp	76.1%	85.9%
Foreign born	4,268 ±595	18.8% ±2.6 pp	23.9%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 21,436
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
English only	16,804 ±633	78.4% ±2.8 pp	66.9%	77.7%
Spanish	2,262 ±553	10.6% ±2.6 pp	17.2%	13.6%
French, Haitian, or Cajun	217 ±131 · low precision	1.0% ±0.6 pp · low precision	1.1%	0.7%
German or other West Germanic	80 ±59 · low precision	0.4% ±0.3 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	416 ±185	1.9% ±0.9 pp	1.7%	0.7%
Other Indo-European	589 ±222	2.7% ±1.0 pp	5.6%	2.0%
Korean	49 ±52 · low precision	0.2% ±0.2 pp · low precision	0.9%	0.3%
Chinese, including Mandarin and Cantonese	544 ±206	2.5% ±1.0 pp	1.5%	1.1%
Vietnamese	24 ±26 · low precision	0.1% ±0.1 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	56 ±51 · low precision	0.3% ±0.2 pp · low precision	0.9%	0.6%
Other Asian and Pacific Island	252 ±132 · low precision	1.2% ±0.6 pp · low precision	1.6%	1.1%
Arabic	61 ±76 · low precision	0.3% ±0.4 pp · low precision	0.9%	0.5%
Other and unspecified	82 ±72 · low precision	0.4% ±0.3 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: 15,450
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Less than high school graduate	724 ±246	4.7% ±1.6 pp	9.3%	10.4%
High school graduate or equivalency	1,599 ±364	10.3% ±2.3 pp	25.3%	26.0%
Some college, no degree	1,409 ±280	9.1% ±1.8 pp	15.0%	19.1%
Associate’s degree	514 ±260 · low precision	3.3% ±1.7 pp · low precision	6.7%	8.8%
Bachelor’s degree	5,546 ±471	35.9% ±2.8 pp	26.1%	21.6%
Graduate or professional degree	5,658 ±595	36.6% ±3.6 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: 22,499
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Same house	20,650 ±482	91.8% ±2.1 pp	90.4%	87.7%
Moved within same county	642 ±293	2.9% ±1.3 pp	4.4%	6.3%
Moved from a different county in the same state	366 ±198 · low precision	1.6% ±0.9 pp · low precision	2.5%	3.1%
Moved from a different state	548 ±214	2.4% ±1.0 pp	1.8%	2.3%
Moved from abroad	293 ±173 · low precision	1.3% ±0.8 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

5.9% of Summit residents (±1.7 percentage points) had no health insurance coverage when surveyed, compared with 7.5% in New Jersey and 8.4% nationally. 95.5% 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	Summit	New Jersey	U.S.	Compared with New Jersey
People without health insurance Civilian noninstitutionalized population	5.9% ±1.7 pp	7.5%	8.4%	Not statistically different
Households with a broadband subscription Households	95.5% ±1.7 pp	92.8%	91.0%	Higher
Veterans Civilian population age 18 and older	1.7% ±0.7 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 Summit . 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 Summit housing and cost context or return to the city profile.