Belmar, New Jersey demographics

Belmar, NJ demographics: median age 49.5; 53.6% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Belmar borough, New Jersey · Incorporated borough · GEOID 3404930. The survey estimates a population of 5,869 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Belmar is 49.5 years, with a 90% margin of error of 5.7 years. There are 2,959 households (±236). 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	49.5 ±5.7	40.1 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 5,869
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Under 18	704 ±228	12.0% ±3.9 pp	21.8%	22.0%
18–34	1,287 ±357	21.9% ±6.1 pp	21.3%	22.8%
35–64	2,691 ±380	45.9% ±6.5 pp	39.7%	38.0%
65 and older	1,187 ±189	20.2% ±3.2 pp	17.2%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 5,869
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Male	3,457 ±280	58.9% ±4.8 pp	49.2%	49.5%
Female	2,412 ±278	41.1% ±4.7 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: 5,869
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
White alone	4,924 ±411	83.9% ±7.0 pp	54.0%	61.0%
Black or African American alone	64 ±60 · low precision	1.1% ±1.0 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	56 ±39 · low precision	1.0% ±0.7 pp · low precision	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	526 ±313 · low precision	9.0% ±5.3 pp · low precision	10.1%	7.1%
Two or more races	299 ±177 · low precision	5.1% ±3.0 pp · low precision	12.4%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 5,869
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Not Hispanic or Latino	5,027 ±386	85.7% ±6.6 pp	77.5%	80.7%
Hispanic or Latino	842 ±384	14.3% ±6.5 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: 2,959
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Married-couple family	1,033 ±166	34.9% ±4.9 pp	49.8%	46.9%
Other family: male householder, no spouse present	223 ±137 · low precision	7.5% ±4.6 pp · low precision	5.1%	5.1%
Other family: female householder, no spouse present	197 ±76	6.7% ±2.5 pp	12.9%	12.2%
Nonfamily: householder living alone	1,335 ±304	45.1% ±9.6 pp	26.4%	28.7%
Nonfamily: householder not living alone	171 ±76	5.8% ±2.5 pp	5.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 2,959
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Households with people under 18	398 ±105	13.5% ±3.4 pp	31.2%	29.5%
Households without people under 18	2,561 ±290	86.5% ±7.0 pp	68.8%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 2,959
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
One-person nonfamily households	1,335 ±304	45.1% ±9.6 pp	26.4%	28.7%
Two-person households	900 ±172	30.4% ±5.3 pp	31.1%	33.8%
Three-person households	404 ±137	13.7% ±4.5 pp	17.1%	15.3%
Four-person households	281 ±98	9.5% ±3.2 pp	15.2%	12.6%
Five-person households	39 ±39 · low precision	1.3% ±1.3 pp · low precision	6.3%	5.9%
Six-person households	0 ±28 · low precision	0.0% ±1.0 pp · low precision	2.3%	2.2%
Seven or more people	0 ±28 · low precision	0.0% ±1.0 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: 5,869
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Native	5,281 ±280	90.0% ±4.8 pp	76.1%	85.9%
Foreign born	588 ±278	10.0% ±4.7 pp	23.9%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 5,728
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
English only	4,808 ±366	83.9% ±6.2 pp	66.9%	77.7%
Spanish	722 ±346	12.6% ±6.0 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	12 ±19 · low precision	0.2% ±0.3 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	70 ±86 · low precision	1.2% ±1.5 pp · low precision	1.7%	0.7%
Other Indo-European	90 ±61 · low precision	1.6% ±1.1 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	8 ±12 · low precision	0.1% ±0.2 pp · low precision	1.5%	1.1%
Vietnamese	0 ±20 · low precision	0.0% ±0.3 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	18 ±19 · low precision	0.3% ±0.3 pp · low precision	0.9%	0.6%
Other Asian and Pacific Island	0 ±20 · low precision	0.0% ±0.3 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	0 ±20 · low precision	0.0% ±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: 4,867
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Less than high school graduate	383 ±178	7.9% ±3.6 pp	9.3%	10.4%
High school graduate or equivalency	548 ±151	11.3% ±3.1 pp	25.3%	26.0%
Some college, no degree	923 ±308	19.0% ±6.3 pp	15.0%	19.1%
Associate’s degree	406 ±130	8.3% ±2.6 pp	6.7%	8.8%
Bachelor’s degree	1,959 ±273	40.3% ±5.3 pp	26.1%	21.6%
Graduate or professional degree	648 ±155	13.3% ±3.1 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: 5,869
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Same house	5,330 ±182	90.8% ±3.1 pp	90.4%	87.7%
Moved within same county	338 ±158	5.8% ±2.7 pp	4.4%	6.3%
Moved from a different county in the same state	147 ±85 · low precision	2.5% ±1.4 pp · low precision	2.5%	3.1%
Moved from a different state	54 ±50 · low precision	0.9% ±0.9 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

9.6% of Belmar residents (±5.2 percentage points) had no health insurance coverage when surveyed, compared with 7.5% in New Jersey and 8.4% nationally. 94.1% 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	Belmar	New Jersey	U.S.	Compared with New Jersey
People without health insurance Civilian noninstitutionalized population	9.6% ±5.2 pp · low precision	7.5%	8.4%	Not statistically different
Households with a broadband subscription Households	94.1% ±2.4 pp	92.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	5.1% ±1.7 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 Belmar . 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 Belmar housing and cost context or return to the city profile.