Vacaville, California demographics

Vacaville, CA demographics: median age 38.2; 28.0% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Vacaville city, California · Incorporated city · GEOID 0681554. The survey estimates a population of 102,596 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Vacaville is 38.2 years, with a 90% margin of error of 0.8 years. There are 34,298 households (±696). 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	38.2 ±0.8	37.9 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 102,596
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Under 18	22,502 ±1,135	21.9% ±1.1 pp	22.0%	22.0%
18–34	24,026 ±1,175	23.4% ±1.1 pp	23.9%	22.8%
35–64	39,924 ±1,413	38.9% ±1.4 pp	38.5%	38.0%
65 and older	16,144 ±945	15.7% ±0.9 pp	15.7%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 102,596
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Male	53,143 ±1,040	51.8% ±1.0 pp	49.9%	49.5%
Female	49,453 ±1,038	48.2% ±1.0 pp	50.1%	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: 102,596
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
White alone	54,447 ±1,881	53.1% ±1.8 pp	39.7%	61.0%
Black or African American alone	8,819 ±1,169	8.6% ±1.1 pp	5.4%	12.2%
American Indian and Alaska Native alone	1,033 ±367	1.0% ±0.4 pp	1.3%	0.9%
Asian alone	11,656 ±1,169	11.4% ±1.1 pp	15.5%	6.0%
Native Hawaiian and Other Pacific Islander alone	496 ±284 · low precision	0.5% ±0.3 pp · low precision	0.4%	0.2%
Some other race alone	9,596 ±1,136	9.4% ±1.1 pp	18.5%	7.1%
Two or more races	16,549 ±1,513	16.1% ±1.5 pp	19.2%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 102,596
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Not Hispanic or Latino	73,998 ±1,513	72.1% ±1.5 pp	59.8%	80.7%
Hispanic or Latino	28,598 ±1,512	27.9% ±1.5 pp	40.2%	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: 34,298
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Married-couple family	18,162 ±607	53.0% ±1.4 pp	48.4%	46.9%
Other family: male householder, no spouse present	1,808 ±392	5.3% ±1.1 pp	6.3%	5.1%
Other family: female householder, no spouse present	4,494 ±551	13.1% ±1.6 pp	13.1%	12.2%
Nonfamily: householder living alone	7,757 ±752	22.6% ±2.1 pp	24.3%	28.7%
Nonfamily: householder not living alone	2,077 ±355	6.1% ±1.0 pp	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 34,298
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Households with people under 18	11,117 ±508	32.4% ±1.3 pp	32.4%	29.5%
Households without people under 18	23,181 ±882	67.6% ±2.2 pp	67.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 34,298
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
One-person nonfamily households	7,757 ±752	22.6% ±2.1 pp	24.3%	28.7%
Two-person households	11,265 ±779	32.8% ±2.2 pp	30.5%	33.8%
Three-person households	5,569 ±622	16.2% ±1.8 pp	16.7%	15.3%
Four-person households	5,626 ±513	16.4% ±1.5 pp	14.9%	12.6%
Five-person households	2,789 ±392	8.1% ±1.1 pp	7.7%	5.9%
Six-person households	866 ±218	2.5% ±0.6 pp	3.3%	2.2%
Seven or more people	426 ±145	1.2% ±0.4 pp	2.6%	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: 102,596
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Native	89,109 ±1,158	86.9% ±1.1 pp	73.0%	85.9%
Foreign born	13,487 ±1,158	13.1% ±1.1 pp	27.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 97,255
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
English only	75,551 ±1,890	77.7% ±1.9 pp	55.6%	77.7%
Spanish	13,388 ±1,476	13.8% ±1.5 pp	28.3%	13.6%
French, Haitian, or Cajun	259 ±133 · low precision	0.3% ±0.1 pp · low precision	0.4%	0.7%
German or other West Germanic	161 ±83 · low precision	0.2% ±0.1 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	143 ±85 · low precision	0.1% ±0.1 pp · low precision	0.7%	0.7%
Other Indo-European	1,961 ±800	2.0% ±0.8 pp	3.5%	2.0%
Korean	301 ±200 · low precision	0.3% ±0.2 pp · low precision	1.0%	0.3%
Chinese, including Mandarin and Cantonese	783 ±355	0.8% ±0.4 pp	3.5%	1.1%
Vietnamese	247 ±125 · low precision	0.3% ±0.1 pp · low precision	1.5%	0.5%
Tagalog, including Filipino	3,091 ±633	3.2% ±0.7 pp	2.1%	0.6%
Other Asian and Pacific Island	833 ±258	0.9% ±0.3 pp	2.0%	1.1%
Arabic	163 ±91 · low precision	0.2% ±0.1 pp · low precision	0.6%	0.5%
Other and unspecified	374 ±222 · low precision	0.4% ±0.2 pp · low precision	0.6%	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: 71,703
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Less than high school graduate	6,425 ±768	9.0% ±1.1 pp	15.3%	10.4%
High school graduate or equivalency	17,666 ±1,008	24.6% ±1.4 pp	20.5%	26.0%
Some college, no degree	19,318 ±1,255	26.9% ±1.7 pp	19.3%	19.1%
Associate’s degree	8,243 ±643	11.5% ±0.9 pp	7.9%	8.8%
Bachelor’s degree	13,816 ±927	19.3% ±1.3 pp	22.7%	21.6%
Graduate or professional degree	6,235 ±687	8.7% ±1.0 pp	14.4%	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: 101,519
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Same house	88,835 ±1,424	87.5% ±1.4 pp	89.2%	87.7%
Moved within same county	7,131 ±1,143	7.0% ±1.1 pp	6.4%	6.3%
Moved from a different county in the same state	3,680 ±513	3.6% ±0.5 pp	2.6%	3.1%
Moved from a different state	1,482 ±388	1.5% ±0.4 pp	1.1%	2.3%
Moved from abroad	391 ±235 · low precision	0.4% ±0.2 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

2.6% of Vacaville residents (±0.5 percentage points) had no health insurance coverage when surveyed, compared with 6.6% in California and 8.4% nationally. 95.7% 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	Vacaville	California	U.S.	Compared with California
People without health insurance Civilian noninstitutionalized population	2.6% ±0.5 pp	6.6%	8.4%	Lower
Households with a broadband subscription Households	95.7% ±0.6 pp	93.5%	91.0%	Higher
Veterans Civilian population age 18 and older	10.3% ±0.9 pp	4.3%	6.2%	Higher

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 Vacaville . 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 Vacaville housing and cost context or return to the city profile.