San Joaquin, California demographics

San Joaquin, CA demographics: median age 25.3; 1.5% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · San Joaquin city, California · Incorporated city · GEOID 0667126. The survey estimates a population of 3,708 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in San Joaquin is 25.3 years, with a 90% margin of error of 3.9 years. There are 939 households (±128). 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	25.3 ±3.9	37.9 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 3,708
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Under 18	1,492 ±261	40.2% ±7.0 pp	22.0%	22.0%
18–34	939 ±210	25.3% ±5.7 pp	23.9%	22.8%
35–64	1,003 ±213	27.0% ±5.7 pp	38.5%	38.0%
65 and older	274 ±117	7.4% ±3.1 pp	15.7%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 3,708
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Male	1,799 ±179	48.5% ±4.8 pp	49.9%	49.5%
Female	1,909 ±177	51.5% ±4.8 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: 3,708
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
White alone	190 ±177 · low precision	5.1% ±4.8 pp · low precision	39.7%	61.0%
Black or African American alone	166 ±171 · low precision	4.5% ±4.6 pp · low precision	5.4%	12.2%
American Indian and Alaska Native alone	34 ±56 · low precision	0.9% ±1.5 pp · low precision	1.3%	0.9%
Asian alone	0 ±14 · low precision	0.0% ±0.4 pp · low precision	15.5%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±14 · low precision	0.0% ±0.4 pp · low precision	0.4%	0.2%
Some other race alone	2,356 ±480	63.5% ±12.9 pp	18.5%	7.1%
Two or more races	962 ±427	25.9% ±11.5 pp	19.2%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 3,708
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Not Hispanic or Latino	231 ±206 · low precision	6.2% ±5.6 pp · low precision	59.8%	80.7%
Hispanic or Latino	3,477 ±207	93.8% ±5.6 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: 939
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Married-couple family	482 ±90	51.3% ±6.6 pp	48.4%	46.9%
Other family: male householder, no spouse present	62 ±52 · low precision	6.6% ±5.5 pp · low precision	6.3%	5.1%
Other family: female householder, no spouse present	206 ±92	21.9% ±9.3 pp	13.1%	12.2%
Nonfamily: householder living alone	132 ±81 · low precision	14.1% ±8.4 pp · low precision	24.3%	28.7%
Nonfamily: householder not living alone	57 ±62 · low precision	6.1% ±6.6 pp · low precision	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 939
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Households with people under 18	526 ±75	56.0% ±2.3 pp	32.4%	29.5%
Households without people under 18	413 ±149	44.0% ±14.7 pp	67.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 939
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
One-person nonfamily households	132 ±81 · low precision	14.1% ±8.4 pp · low precision	24.3%	28.7%
Two-person households	159 ±91 · low precision	16.9% ±9.4 pp · low precision	30.5%	33.8%
Three-person households	128 ±84 · low precision	13.6% ±8.8 pp · low precision	16.7%	15.3%
Four-person households	162 ±79	17.3% ±8.1 pp	14.9%	12.6%
Five-person households	245 ±82	26.1% ±8.0 pp	7.7%	5.9%
Six-person households	67 ±59 · low precision	7.1% ±6.2 pp · low precision	3.3%	2.2%
Seven or more people	46 ±56 · low precision	4.9% ±5.9 pp · low precision	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: 3,708
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Native	2,305 ±217	62.2% ±5.8 pp	73.0%	85.9%
Foreign born	1,403 ±218	37.8% ±5.9 pp	27.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 3,349
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
English only	659 ±211	19.7% ±6.2 pp	55.6%	77.7%
Spanish	2,667 ±257	79.6% ±6.9 pp	28.3%	13.6%
French, Haitian, or Cajun	0 ±14 · low precision	0.0% ±0.4 pp · low precision	0.4%	0.7%
German or other West Germanic	0 ±14 · low precision	0.0% ±0.4 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	0 ±14 · low precision	0.0% ±0.4 pp · low precision	0.7%	0.7%
Other Indo-European	0 ±14 · low precision	0.0% ±0.4 pp · low precision	3.5%	2.0%
Korean	0 ±14 · low precision	0.0% ±0.4 pp · low precision	1.0%	0.3%
Chinese, including Mandarin and Cantonese	0 ±14 · low precision	0.0% ±0.4 pp · low precision	3.5%	1.1%
Vietnamese	0 ±14 · low precision	0.0% ±0.4 pp · low precision	1.5%	0.5%
Tagalog, including Filipino	0 ±14 · low precision	0.0% ±0.4 pp · low precision	2.1%	0.6%
Other Asian and Pacific Island	0 ±14 · low precision	0.0% ±0.4 pp · low precision	2.0%	1.1%
Arabic	23 ±38 · low precision	0.7% ±1.1 pp · low precision	0.6%	0.5%
Other and unspecified	0 ±14 · low precision	0.0% ±0.4 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: 1,862
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Less than high school graduate	1,163 ±252	62.5% ±11.1 pp	15.3%	10.4%
High school graduate or equivalency	410 ±144	22.0% ±7.2 pp	20.5%	26.0%
Some college, no degree	218 ±111 · low precision	11.7% ±5.8 pp	19.3%	19.1%
Associate’s degree	43 ±38 · low precision	2.3% ±2.0 pp · low precision	7.9%	8.8%
Bachelor’s degree	28 ±48 · low precision	1.5% ±2.6 pp · low precision	22.7%	21.6%
Graduate or professional degree	0 ±24 · low precision	0.0% ±1.3 pp · low precision	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: 3,658
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Same house	3,563 ±123	97.4% ±3.1 pp	89.2%	87.7%
Moved within same county	95 ±113 · low precision	2.6% ±3.1 pp · low precision	6.4%	6.3%
Moved from a different county in the same state	0 ±14 · low precision	0.0% ±0.4 pp · low precision	2.6%	3.1%
Moved from a different state	0 ±14 · low precision	0.0% ±0.4 pp · low precision	1.1%	2.3%
Moved from abroad	0 ±14 · low precision	0.0% ±0.4 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

6.6% of San Joaquin residents (±3.2 percentage points) had no health insurance coverage when surveyed, compared with 6.6% in California and 8.4% nationally. 88.6% 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	San Joaquin	California	U.S.	Compared with California
People without health insurance Civilian noninstitutionalized population	6.6% ±3.2 pp	6.6%	8.4%	Not statistically different
Households with a broadband subscription Households	88.6% ±2.6 pp	93.5%	91.0%	Lower
Veterans Civilian population age 18 and older	0.8% ±1.2 pp · low precision	4.3%	6.2%	Lower

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 San Joaquin . 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 San Joaquin housing and cost context or return to the city profile.