Suisun City, California demographics

Suisun City, CA demographics: median age 35.7; 21.1% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Suisun City city, California · Incorporated city · GEOID 0675630. The survey estimates a population of 29,286 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Suisun City is 35.7 years, with a 90% margin of error of 1.2 years. There are 9,632 households (±472). 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	35.7 ±1.2	37.9 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 29,286
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Under 18	7,244 ±738	24.7% ±2.5 pp	22.0%	22.0%
18–34	7,052 ±703	24.1% ±2.4 pp	23.9%	22.8%
35–64	10,786 ±808	36.8% ±2.8 pp	38.5%	38.0%
65 and older	4,204 ±477	14.4% ±1.6 pp	15.7%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 29,286
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Male	14,728 ±745	50.3% ±2.5 pp	49.9%	49.5%
Female	14,558 ±743	49.7% ±2.5 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: 29,286
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
White alone	7,537 ±829	25.7% ±2.8 pp	39.7%	61.0%
Black or African American alone	6,045 ±1,070	20.6% ±3.7 pp	5.4%	12.2%
American Indian and Alaska Native alone	346 ±243 · low precision	1.2% ±0.8 pp · low precision	1.3%	0.9%
Asian alone	5,731 ±634	19.6% ±2.2 pp	15.5%	6.0%
Native Hawaiian and Other Pacific Islander alone	355 ±195 · low precision	1.2% ±0.7 pp · low precision	0.4%	0.2%
Some other race alone	3,502 ±870	12.0% ±3.0 pp	18.5%	7.1%
Two or more races	5,770 ±972	19.7% ±3.3 pp	19.2%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 29,286
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Not Hispanic or Latino	20,306 ±865	69.3% ±3.0 pp	59.8%	80.7%
Hispanic or Latino	8,980 ±859	30.7% ±2.9 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: 9,632
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Married-couple family	4,467 ±404	46.4% ±3.5 pp	48.4%	46.9%
Other family: male householder, no spouse present	721 ±262	7.5% ±2.7 pp	6.3%	5.1%
Other family: female householder, no spouse present	1,734 ±333	18.0% ±3.3 pp	13.1%	12.2%
Nonfamily: householder living alone	2,296 ±453	23.8% ±4.6 pp	24.3%	28.7%
Nonfamily: householder not living alone	414 ±175	4.3% ±1.8 pp	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 9,632
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Households with people under 18	3,690 ±357	38.3% ±3.2 pp	32.4%	29.5%
Households without people under 18	5,942 ±602	61.7% ±5.5 pp	67.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 9,632
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
One-person nonfamily households	2,296 ±453	23.8% ±4.6 pp	24.3%	28.7%
Two-person households	2,304 ±352	23.9% ±3.5 pp	30.5%	33.8%
Three-person households	1,663 ±322	17.3% ±3.2 pp	16.7%	15.3%
Four-person households	1,777 ±345	18.4% ±3.5 pp	14.9%	12.6%
Five-person households	969 ±220	10.1% ±2.2 pp	7.7%	5.9%
Six-person households	338 ±156	3.5% ±1.6 pp	3.3%	2.2%
Seven or more people	285 ±111	3.0% ±1.1 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: 29,286
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Native	23,017 ±664	78.6% ±2.3 pp	73.0%	85.9%
Foreign born	6,269 ±658	21.4% ±2.2 pp	27.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 27,662
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
English only	18,017 ±913	65.1% ±3.2 pp	55.6%	77.7%
Spanish	4,881 ±752	17.6% ±2.7 pp	28.3%	13.6%
French, Haitian, or Cajun	66 ±64 · low precision	0.2% ±0.2 pp · low precision	0.4%	0.7%
German or other West Germanic	55 ±61 · low precision	0.2% ±0.2 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	114 ±109 · low precision	0.4% ±0.4 pp · low precision	0.7%	0.7%
Other Indo-European	665 ±476 · low precision	2.4% ±1.7 pp · low precision	3.5%	2.0%
Korean	15 ±23 · low precision	0.1% ±0.1 pp · low precision	1.0%	0.3%
Chinese, including Mandarin and Cantonese	107 ±56 · low precision	0.4% ±0.2 pp · low precision	3.5%	1.1%
Vietnamese	242 ±197 · low precision	0.9% ±0.7 pp · low precision	1.5%	0.5%
Tagalog, including Filipino	2,854 ±515	10.3% ±1.9 pp	2.1%	0.6%
Other Asian and Pacific Island	616 ±188	2.2% ±0.7 pp	2.0%	1.1%
Arabic	15 ±26 · low precision	0.1% ±0.1 pp · low precision	0.6%	0.5%
Other and unspecified	15 ±28 · low precision	0.1% ±0.1 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: 19,555
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Less than high school graduate	2,303 ±401	11.8% ±2.0 pp	15.3%	10.4%
High school graduate or equivalency	5,917 ±697	30.3% ±3.4 pp	20.5%	26.0%
Some college, no degree	4,772 ±540	24.4% ±2.7 pp	19.3%	19.1%
Associate’s degree	2,432 ±484	12.4% ±2.4 pp	7.9%	8.8%
Bachelor’s degree	2,899 ±446	14.8% ±2.2 pp	22.7%	21.6%
Graduate or professional degree	1,232 ±279	6.3% ±1.4 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: 29,085
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Same house	26,622 ±870	91.5% ±3.0 pp	89.2%	87.7%
Moved within same county	1,560 ±742	5.4% ±2.6 pp	6.4%	6.3%
Moved from a different county in the same state	636 ±313	2.2% ±1.1 pp	2.6%	3.1%
Moved from a different state	209 ±157 · low precision	0.7% ±0.5 pp · low precision	1.1%	2.3%
Moved from abroad	58 ±58 · low precision	0.2% ±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

3.8% of Suisun City residents (±1.1 percentage points) had no health insurance coverage when surveyed, compared with 6.6% in California and 8.4% nationally. 95.2% 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	Suisun City	California	U.S.	Compared with California
People without health insurance Civilian noninstitutionalized population	3.8% ±1.1 pp	6.6%	8.4%	Lower
Households with a broadband subscription Households	95.2% ±1.6 pp	93.5%	91.0%	Higher
Veterans Civilian population age 18 and older	8.5% ±1.6 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 Suisun City . 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 Suisun City housing and cost context or return to the city profile.