Watchung, New Jersey demographics

Watchung, NJ demographics: median age 48.1; 64.0% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Watchung borough, New Jersey · Incorporated borough · GEOID 3477600. The survey estimates a population of 6,485 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Watchung is 48.1 years, with a 90% margin of error of 7.3 years. There are 2,357 households (±168). 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 48.1 ±7.3 40.1 ±0.1 38.9 ±0.1
Age groups · B01001 · ACS 2020–2024 Total population: 6,485
Category Count ± MOE Share ± MOE (pp) New Jersey U.S.
Under 18 1,354 ±328 20.9% ±5.1 pp 21.8% 22.0%
18–34 894 ±274 13.8% ±4.2 pp 21.3% 22.8%
35–64 2,332 ±365 36.0% ±5.6 pp 39.7% 38.0%
65 and older 1,905 ±338 29.4% ±5.2 pp 17.2% 17.2%
Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 6,485
Category Count ± MOE Share ± MOE (pp) New Jersey U.S.
Male 3,046 ±238 47.0% ±3.7 pp 49.2% 49.5%
Female 3,439 ±236 53.0% ±3.6 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: 6,485
Category Count ± MOE Share ± MOE (pp) New Jersey U.S.
White alone 4,768 ±524 73.5% ±8.1 pp 54.0% 61.0%
Black or African American alone 210 ±203 · low precision 3.2% ±3.1 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 781 ±375 12.0% ±5.8 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 36 ±43 · low precision 0.6% ±0.7 pp · low precision 10.1% 7.1%
Two or more races 690 ±290 10.6% ±4.5 pp 12.4% 12.6%
Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 6,485
Category Count ± MOE Share ± MOE (pp) New Jersey U.S.
Not Hispanic or Latino 5,914 ±239 91.2% ±3.7 pp 77.5% 80.7%
Hispanic or Latino 571 ±245 8.8% ±3.8 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: 2,357
Category Count ± MOE Share ± MOE (pp) New Jersey U.S.
Married-couple family 1,504 ±228 63.8% ±8.5 pp 49.8% 46.9%
Other family: male householder, no spouse present 68 ±78 · low precision 2.9% ±3.3 pp · low precision 5.1% 5.1%
Other family: female householder, no spouse present 177 ±143 · low precision 7.5% ±6.0 pp · low precision 12.9% 12.2%
Nonfamily: householder living alone 536 ±165 22.7% ±6.8 pp 26.4% 28.7%
Nonfamily: householder not living alone 72 ±63 · low precision 3.1% ±2.7 pp · low precision 5.8% 7.0%
Households with children · B11005 · ACS 2020–2024 Households: 2,357
Category Count ± MOE Share ± MOE (pp) New Jersey U.S.
Households with people under 18 817 ±118 34.7% ±4.4 pp 31.2% 29.5%
Households without people under 18 1,540 ±232 65.3% ±8.7 pp 68.8% 70.5%
Household size · B11016 · ACS 2020–2024 Households: 2,357
Category Count ± MOE Share ± MOE (pp) New Jersey U.S.
One-person nonfamily households 536 ±165 22.7% ±6.8 pp 26.4% 28.7%
Two-person households 828 ±233 35.1% ±9.6 pp 31.1% 33.8%
Three-person households 393 ±136 16.7% ±5.7 pp 17.1% 15.3%
Four-person households 358 ±146 15.2% ±6.1 pp 15.2% 12.6%
Five-person households 148 ±81 · low precision 6.3% ±3.4 pp · low precision 6.3% 5.9%
Six-person households 94 ±75 · low precision 4.0% ±3.2 pp · low precision 2.3% 2.2%
Seven or more people 0 ±28 · low precision 0.0% ±1.2 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: 6,485
Category Count ± MOE Share ± MOE (pp) New Jersey U.S.
Native 5,034 ±311 77.6% ±4.8 pp 76.1% 85.9%
Foreign born 1,451 ±309 22.4% ±4.8 pp 23.9% 14.1%
Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 6,268
Category Count ± MOE Share ± MOE (pp) New Jersey U.S.
English only 4,987 ±396 79.6% ±6.1 pp 66.9% 77.7%
Spanish 288 ±164 · low precision 4.6% ±2.6 pp · low precision 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 68 ±108 · low precision 1.1% ±1.7 pp · low precision 0.4% 0.5%
Russian, Polish, or other Slavic 77 ±119 · low precision 1.2% ±1.9 pp · low precision 1.7% 0.7%
Other Indo-European 492 ±267 · low precision 7.8% ±4.3 pp · low precision 5.6% 2.0%
Korean 122 ±154 · low precision 1.9% ±2.5 pp · low precision 0.9% 0.3%
Chinese, including Mandarin and Cantonese 26 ±41 · low precision 0.4% ±0.7 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 19 ±31 · low precision 0.3% ±0.5 pp · low precision 0.9% 0.6%
Other Asian and Pacific Island 189 ±142 · low precision 3.0% ±2.3 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: 4,822
Category Count ± MOE Share ± MOE (pp) New Jersey U.S.
Less than high school graduate 213 ±122 · low precision 4.4% ±2.5 pp · low precision 9.3% 10.4%
High school graduate or equivalency 892 ±251 18.5% ±5.1 pp 25.3% 26.0%
Some college, no degree 354 ±147 7.3% ±3.0 pp 15.0% 19.1%
Associate’s degree 276 ±204 · low precision 5.7% ±4.2 pp · low precision 6.7% 8.8%
Bachelor’s degree 1,853 ±353 38.4% ±7.0 pp 26.1% 21.6%
Graduate or professional degree 1,234 ±265 25.6% ±5.3 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: 6,485
Category Count ± MOE Share ± MOE (pp) New Jersey U.S.
Same house 6,037 ±255 93.1% ±3.9 pp 90.4% 87.7%
Moved within same county 75 ±121 · low precision 1.2% ±1.9 pp · low precision 4.4% 6.3%
Moved from a different county in the same state 273 ±193 · low precision 4.2% ±3.0 pp · low precision 2.5% 3.1%
Moved from a different state 27 ±37 · low precision 0.4% ±0.6 pp · low precision 1.8% 2.3%
Moved from abroad 73 ±86 · low precision 1.1% ±1.3 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

1.4% of Watchung residents (±1.3 percentage points) had no health insurance coverage when surveyed, compared with 7.5% in New Jersey and 8.4% nationally. 91.5% 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 Watchung New Jersey U.S. Compared with New Jersey
People without health insurance Civilian noninstitutionalized population 1.4% ±1.3 pp · low precision 7.5% 8.4% Lower
Households with a broadband subscription Households 91.5% ±4.7 pp 92.8% 91.0% Not statistically different
Veterans Civilian population age 18 and older 3.8% ±1.9 pp · low precision 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 Watchung . 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 Watchung housing and cost context or return to the city profile.

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