West Haven, Connecticut demographics

West Haven, CT demographics: median age 35.8; 30.5% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · West Haven city, Connecticut · Incorporated city · GEOID 0982800. The survey estimates a population of 55,351 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in West Haven is 35.8 years, with a 90% margin of error of 1.5 years. There are 20,938 households (±708). 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	35.8 ±1.5	41.1 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 55,351
Category	Count ± MOE	Share ± MOE (pp)	Connecticut	U.S.
Under 18	11,211 ±1,029	20.3% ±1.9 pp	20.2%	22.0%
18–34	15,959 ±1,132	28.8% ±2.0 pp	21.9%	22.8%
35–64	19,342 ±1,206	34.9% ±2.2 pp	39.4%	38.0%
65 and older	8,839 ±727	16.0% ±1.3 pp	18.5%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 55,351
Category	Count ± MOE	Share ± MOE (pp)	Connecticut	U.S.
Male	26,849 ±803	48.5% ±1.5 pp	49.1%	49.5%
Female	28,502 ±798	51.5% ±1.4 pp	50.9%	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: 55,351
Category	Count ± MOE	Share ± MOE (pp)	Connecticut	U.S.
White alone	26,121 ±1,659	47.2% ±3.0 pp	65.1%	61.0%
Black or African American alone	11,566 ±1,155	20.9% ±2.1 pp	10.6%	12.2%
American Indian and Alaska Native alone	159 ±116 · low precision	0.3% ±0.2 pp · low precision	0.3%	0.9%
Asian alone	3,091 ±647	5.6% ±1.2 pp	4.8%	6.0%
Native Hawaiian and Other Pacific Islander alone	156 ±161 · low precision	0.3% ±0.3 pp · low precision	0.0%	0.2%
Some other race alone	7,806 ±1,262	14.1% ±2.3 pp	7.7%	7.1%
Two or more races	6,452 ±1,272	11.7% ±2.3 pp	11.4%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 55,351
Category	Count ± MOE	Share ± MOE (pp)	Connecticut	U.S.
Not Hispanic or Latino	40,197 ±1,574	72.6% ±2.8 pp	81.7%	80.7%
Hispanic or Latino	15,154 ±1,576	27.4% ±2.8 pp	18.3%	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: 20,938
Category	Count ± MOE	Share ± MOE (pp)	Connecticut	U.S.
Married-couple family	7,884 ±573	37.7% ±2.4 pp	46.6%	46.9%
Other family: male householder, no spouse present	1,181 ±344	5.6% ±1.6 pp	5.0%	5.1%
Other family: female householder, no spouse present	3,580 ±460	17.1% ±2.1 pp	12.7%	12.2%
Nonfamily: householder living alone	6,552 ±824	31.3% ±3.8 pp	29.1%	28.7%
Nonfamily: householder not living alone	1,741 ±390	8.3% ±1.8 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 20,938
Category	Count ± MOE	Share ± MOE (pp)	Connecticut	U.S.
Households with people under 18	6,053 ±544	28.9% ±2.4 pp	28.6%	29.5%
Households without people under 18	14,885 ±973	71.1% ±4.0 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 20,938
Category	Count ± MOE	Share ± MOE (pp)	Connecticut	U.S.
One-person nonfamily households	6,552 ±824	31.3% ±3.8 pp	29.1%	28.7%
Two-person households	5,908 ±594	28.2% ±2.7 pp	33.4%	33.8%
Three-person households	3,465 ±510	16.5% ±2.4 pp	16.4%	15.3%
Four-person households	2,730 ±473	13.0% ±2.2 pp	13.3%	12.6%
Five-person households	1,409 ±360	6.7% ±1.7 pp	5.4%	5.9%
Six-person households	470 ±183	2.2% ±0.9 pp	1.7%	2.2%
Seven or more people	404 ±160	1.9% ±0.8 pp	0.9%	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: 55,351
Category	Count ± MOE	Share ± MOE (pp)	Connecticut	U.S.
Native	43,667 ±1,159	78.9% ±2.1 pp	84.3%	85.9%
Foreign born	11,684 ±1,159	21.1% ±2.1 pp	15.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 52,323
Category	Count ± MOE	Share ± MOE (pp)	Connecticut	U.S.
English only	35,543 ±1,448	67.9% ±2.7 pp	76.6%	77.7%
Spanish	9,451 ±1,276	18.1% ±2.4 pp	12.8%	13.6%
French, Haitian, or Cajun	653 ±322	1.2% ±0.6 pp	1.2%	0.7%
German or other West Germanic	101 ±91 · low precision	0.2% ±0.2 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	272 ±174 · low precision	0.5% ±0.3 pp · low precision	1.5%	0.7%
Other Indo-European	2,234 ±738	4.3% ±1.4 pp	4.0%	2.0%
Korean	174 ±136 · low precision	0.3% ±0.3 pp · low precision	0.2%	0.3%
Chinese, including Mandarin and Cantonese	450 ±237 · low precision	0.9% ±0.5 pp · low precision	0.9%	1.1%
Vietnamese	33 ±51 · low precision	0.1% ±0.1 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	407 ±291 · low precision	0.8% ±0.6 pp · low precision	0.3%	0.6%
Other Asian and Pacific Island	455 ±199	0.9% ±0.4 pp	0.9%	1.1%
Arabic	1,658 ±672	3.2% ±1.3 pp	0.4%	0.5%
Other and unspecified	892 ±402	1.7% ±0.8 pp	0.7%	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: 35,839
Category	Count ± MOE	Share ± MOE (pp)	Connecticut	U.S.
Less than high school graduate	4,372 ±720	12.2% ±2.0 pp	8.5%	10.4%
High school graduate or equivalency	11,808 ±954	32.9% ±2.5 pp	25.3%	26.0%
Some college, no degree	6,377 ±649	17.8% ±1.8 pp	16.1%	19.1%
Associate’s degree	2,360 ±458	6.6% ±1.3 pp	7.6%	8.8%
Bachelor’s degree	6,289 ±716	17.5% ±1.9 pp	23.3%	21.6%
Graduate or professional degree	4,633 ±907	12.9% ±2.5 pp	19.2%	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: 54,322
Category	Count ± MOE	Share ± MOE (pp)	Connecticut	U.S.
Same house	46,086 ±1,159	84.8% ±2.0 pp	89.2%	87.7%
Moved within same county	3,567 ±817	6.6% ±1.5 pp	5.6%	6.3%
Moved from a different county in the same state	1,794 ±460	3.3% ±0.8 pp	2.0%	3.1%
Moved from a different state	2,045 ±612	3.8% ±1.1 pp	2.6%	2.3%
Moved from abroad	830 ±448 · low precision	1.5% ±0.8 pp · low precision	0.7%	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

7.9% of West Haven residents (±1.5 percentage points) had no health insurance coverage when surveyed, compared with 5.4% in Connecticut and 8.4% nationally. 92.9% 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	West Haven	Connecticut	U.S.	Compared with Connecticut
People without health insurance Civilian noninstitutionalized population	7.9% ±1.5 pp	5.4%	8.4%	Higher
Households with a broadband subscription Households	92.9% ±0.4 pp	92.2%	91.0%	Higher
Veterans Civilian population age 18 and older	4.6% ±0.9 pp	4.7%	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 West Haven . 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 West Haven housing and cost context or return to the city profile.