Seaside Park, New Jersey demographics

Seaside Park, NJ demographics: median age 60.9; 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 · Seaside Park borough, New Jersey · Incorporated borough · GEOID 3466480. The survey estimates a population of 1,793 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Seaside Park is 60.9 years, with a 90% margin of error of 3.9 years. There are 889 households (±135). 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	60.9 ±3.9	40.1 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 1,793
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Under 18	171 ±79	9.5% ±4.2 pp	21.8%	22.0%
18–34	239 ±71	13.3% ±3.5 pp	21.3%	22.8%
35–64	656 ±115	36.6% ±3.9 pp	39.7%	38.0%
65 and older	727 ±107	40.5% ±1.9 pp	17.2%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 1,793
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Male	863 ±125	48.1% ±1.9 pp	49.2%	49.5%
Female	930 ±160	51.9% ±5.2 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: 1,793
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
White alone	1,651 ±233	92.1% ±2.0 pp	54.0%	61.0%
Black or African American alone	48 ±71 · low precision	2.7% ±3.9 pp · low precision	12.8%	12.2%
American Indian and Alaska Native alone	0 ±14 · low precision	0.0% ±0.8 pp · low precision	0.6%	0.9%
Asian alone	35 ±46 · low precision	2.0% ±2.6 pp · low precision	10.1%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±14 · low precision	0.0% ±0.8 pp · low precision	0.0%	0.2%
Some other race alone	4 ±5 · low precision	0.2% ±0.3 pp · low precision	10.1%	7.1%
Two or more races	55 ±37 · low precision	3.1% ±2.0 pp · low precision	12.4%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 1,793
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Not Hispanic or Latino	1,746 ±248	97.4% ±2.6 pp	77.5%	80.7%
Hispanic or Latino	47 ±34 · low precision	2.6% ±1.9 pp · low precision	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: 889
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Married-couple family	368 ±64	41.4% ±3.5 pp	49.8%	46.9%
Other family: male householder, no spouse present	41 ±20	4.6% ±2.1 pp	5.1%	5.1%
Other family: female householder, no spouse present	74 ±44 · low precision	8.3% ±4.8 pp · low precision	12.9%	12.2%
Nonfamily: householder living alone	362 ±111	40.7% ±10.8 pp	26.4%	28.7%
Nonfamily: householder not living alone	44 ±26 · low precision	4.9% ±2.8 pp · low precision	5.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 889
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Households with people under 18	101 ±50	11.4% ±5.4 pp	31.2%	29.5%
Households without people under 18	788 ±126	88.6% ±4.4 pp	68.8%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 889
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
One-person nonfamily households	362 ±111	40.7% ±10.8 pp	26.4%	28.7%
Two-person households	349 ±70	39.3% ±5.1 pp	31.1%	33.8%
Three-person households	73 ±40 · low precision	8.2% ±4.3 pp · low precision	17.1%	15.3%
Four-person households	77 ±37	8.7% ±3.9 pp	15.2%	12.6%
Five-person households	19 ±24 · low precision	2.1% ±2.6 pp · low precision	6.3%	5.9%
Six-person households	6 ±17 · low precision	0.7% ±1.9 pp · low precision	2.3%	2.2%
Seven or more people	3 ±15 · low precision	0.3% ±1.7 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: 1,793
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Native	1,701 ±242	94.9% ±2.7 pp	76.1%	85.9%
Foreign born	92 ±38	5.1% ±2.0 pp	23.9%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 1,732
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
English only	1,637 ±217	94.5% ±1.5 pp	66.9%	77.7%
Spanish	15 ±16 · low precision	0.9% ±0.9 pp · low precision	17.2%	13.6%
French, Haitian, or Cajun	2 ±4 · low precision	0.1% ±0.2 pp · low precision	1.1%	0.7%
German or other West Germanic	0 ±14 · low precision	0.0% ±0.8 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	4 ±5 · low precision	0.2% ±0.3 pp · low precision	1.7%	0.7%
Other Indo-European	71 ±52 · low precision	4.1% ±3.0 pp · low precision	5.6%	2.0%
Korean	0 ±14 · low precision	0.0% ±0.8 pp · low precision	0.9%	0.3%
Chinese, including Mandarin and Cantonese	3 ±4 · low precision	0.2% ±0.2 pp · low precision	1.5%	1.1%
Vietnamese	0 ±14 · low precision	0.0% ±0.8 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	0 ±14 · low precision	0.0% ±0.8 pp · low precision	0.9%	0.6%
Other Asian and Pacific Island	0 ±14 · low precision	0.0% ±0.8 pp · low precision	1.6%	1.1%
Arabic	0 ±14 · low precision	0.0% ±0.8 pp · low precision	0.9%	0.5%
Other and unspecified	0 ±14 · low precision	0.0% ±0.8 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: 1,538
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Less than high school graduate	41 ±52 · low precision	2.7% ±3.3 pp · low precision	9.3%	10.4%
High school graduate or equivalency	370 ±107	24.1% ±6.3 pp	25.3%	26.0%
Some college, no degree	167 ±57	10.9% ±3.4 pp	15.0%	19.1%
Associate’s degree	135 ±55	8.8% ±3.4 pp	6.7%	8.8%
Bachelor’s degree	473 ±100	30.8% ±5.2 pp	26.1%	21.6%
Graduate or professional degree	352 ±76	22.9% ±4.0 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: 1,779
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Same house	1,509 ±214	84.8% ±2.2 pp	90.4%	87.7%
Moved within same county	110 ±82 · low precision	6.2% ±4.5 pp · low precision	4.4%	6.3%
Moved from a different county in the same state	135 ±78 · low precision	7.6% ±4.3 pp · low precision	2.5%	3.1%
Moved from a different state	25 ±17 · low precision	1.4% ±0.9 pp · low precision	1.8%	2.3%
Moved from abroad	0 ±14 · low precision	0.0% ±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

3.1% of Seaside Park residents (±2.1 percentage points) had no health insurance coverage when surveyed, compared with 7.5% in New Jersey and 8.4% nationally. 90.7% 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	Seaside Park	New Jersey	U.S.	Compared with New Jersey
People without health insurance Civilian noninstitutionalized population	3.1% ±2.1 pp · low precision	7.5%	8.4%	Lower
Households with a broadband subscription Households	90.7% ±19.4 pp	92.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	4.1% ±1.6 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 Seaside Park . 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 Seaside Park housing and cost context or return to the city profile.