Butler, New Jersey demographics

Butler, NJ demographics: median age 40.3; 43.1% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Butler borough, New Jersey · Incorporated borough · GEOID 3409040. The survey estimates a population of 8,133 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Butler is 40.3 years, with a 90% margin of error of 2.7 years. There are 3,490 households (±156). 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	40.3 ±2.7	40.1 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 8,133
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Under 18	1,476 ±245	18.1% ±3.0 pp	21.8%	22.0%
18–34	1,802 ±315	22.2% ±3.9 pp	21.3%	22.8%
35–64	3,551 ±392	43.7% ±4.8 pp	39.7%	38.0%
65 and older	1,304 ±232	16.0% ±2.9 pp	17.2%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 8,133
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Male	4,089 ±254	50.3% ±3.1 pp	49.2%	49.5%
Female	4,044 ±251	49.7% ±3.1 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: 8,133
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
White alone	5,900 ±487	72.5% ±6.0 pp	54.0%	61.0%
Black or African American alone	199 ±145 · low precision	2.4% ±1.8 pp · low precision	12.8%	12.2%
American Indian and Alaska Native alone	0 ±20 · low precision	0.0% ±0.2 pp · low precision	0.6%	0.9%
Asian alone	286 ±231 · low precision	3.5% ±2.8 pp · low precision	10.1%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±20 · low precision	0.0% ±0.2 pp · low precision	0.0%	0.2%
Some other race alone	764 ±477 · low precision	9.4% ±5.9 pp · low precision	10.1%	7.1%
Two or more races	984 ±246	12.1% ±3.0 pp	12.4%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 8,133
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Not Hispanic or Latino	6,099 ±523	75.0% ±6.4 pp	77.5%	80.7%
Hispanic or Latino	2,034 ±522	25.0% ±6.4 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: 3,490
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Married-couple family	1,597 ±180	45.8% ±4.7 pp	49.8%	46.9%
Other family: male householder, no spouse present	189 ±87	5.4% ±2.5 pp	5.1%	5.1%
Other family: female householder, no spouse present	467 ±121	13.4% ±3.4 pp	12.9%	12.2%
Nonfamily: householder living alone	1,060 ±187	30.4% ±5.2 pp	26.4%	28.7%
Nonfamily: householder not living alone	177 ±91 · low precision	5.1% ±2.6 pp · low precision	5.8%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 3,490
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Households with people under 18	961 ±148	27.5% ±4.1 pp	31.2%	29.5%
Households without people under 18	2,529 ±236	72.5% ±5.9 pp	68.8%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 3,490
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
One-person nonfamily households	1,060 ±187	30.4% ±5.2 pp	26.4%	28.7%
Two-person households	1,138 ±173	32.6% ±4.7 pp	31.1%	33.8%
Three-person households	536 ±135	15.4% ±3.8 pp	17.1%	15.3%
Four-person households	584 ±99	16.7% ±2.7 pp	15.2%	12.6%
Five-person households	143 ±112 · low precision	4.1% ±3.2 pp · low precision	6.3%	5.9%
Six-person households	15 ±29 · low precision	0.4% ±0.8 pp · low precision	2.3%	2.2%
Seven or more people	14 ±30 · 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: 8,133
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Native	6,793 ±343	83.5% ±4.2 pp	76.1%	85.9%
Foreign born	1,340 ±339	16.5% ±4.2 pp	23.9%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 7,660
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
English only	5,481 ±479	71.6% ±6.1 pp	66.9%	77.7%
Spanish	1,323 ±493	17.3% ±6.4 pp	17.2%	13.6%
French, Haitian, or Cajun	46 ±41 · low precision	0.6% ±0.5 pp · low precision	1.1%	0.7%
German or other West Germanic	0 ±20 · low precision	0.0% ±0.3 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	273 ±197 · low precision	3.6% ±2.6 pp · low precision	1.7%	0.7%
Other Indo-European	253 ±120	3.3% ±1.6 pp	5.6%	2.0%
Korean	17 ±30 · low precision	0.2% ±0.4 pp · low precision	0.9%	0.3%
Chinese, including Mandarin and Cantonese	0 ±20 · low precision	0.0% ±0.3 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	10 ±24 · low precision	0.1% ±0.3 pp · low precision	0.9%	0.6%
Other Asian and Pacific Island	195 ±197 · low precision	2.5% ±2.6 pp · low precision	1.6%	1.1%
Arabic	14 ±21 · low precision	0.2% ±0.3 pp · low precision	0.9%	0.5%
Other and unspecified	48 ±47 · low precision	0.6% ±0.6 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: 5,947
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Less than high school graduate	258 ±122	4.3% ±2.0 pp	9.3%	10.4%
High school graduate or equivalency	1,826 ±284	30.7% ±4.6 pp	25.3%	26.0%
Some college, no degree	939 ±265	15.8% ±4.4 pp	15.0%	19.1%
Associate’s degree	359 ±108	6.0% ±1.8 pp	6.7%	8.8%
Bachelor’s degree	2,076 ±316	34.9% ±5.1 pp	26.1%	21.6%
Graduate or professional degree	489 ±118	8.2% ±2.0 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: 7,992
Category	Count ± MOE	Share ± MOE (pp)	New Jersey	U.S.
Same house	7,602 ±226	95.1% ±2.6 pp	90.4%	87.7%
Moved within same county	202 ±121 · low precision	2.5% ±1.5 pp · low precision	4.4%	6.3%
Moved from a different county in the same state	188 ±129 · low precision	2.4% ±1.6 pp · low precision	2.5%	3.1%
Moved from a different state	0 ±20 · low precision	0.0% ±0.3 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

2.6% of Butler residents (±1.4 percentage points) had no health insurance coverage when surveyed, compared with 7.5% in New Jersey and 8.4% nationally. 93.7% 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	Butler	New Jersey	U.S.	Compared with New Jersey
People without health insurance Civilian noninstitutionalized population	2.6% ±1.4 pp · low precision	7.5%	8.4%	Lower
Households with a broadband subscription Households	93.7% ±2.8 pp	92.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	4.7% ±1.9 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 Butler . 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 Butler housing and cost context or return to the city profile.