San Leandro, California demographics

San Leandro, CA demographics: median age 41.9; 33.3% 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 Leandro city, California · Incorporated city · GEOID 0668084. The survey estimates a population of 87,826 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in San Leandro is 41.9 years, with a 90% margin of error of 1.1 years. There are 30,454 households (±728). 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	41.9 ±1.1	37.9 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 87,826
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Under 18	15,852 ±1,072	18.0% ±1.2 pp	22.0%	22.0%
18–34	18,580 ±1,117	21.2% ±1.3 pp	23.9%	22.8%
35–64	36,793 ±1,558	41.9% ±1.8 pp	38.5%	38.0%
65 and older	16,601 ±1,019	18.9% ±1.2 pp	15.7%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 87,826
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Male	43,333 ±874	49.3% ±1.0 pp	49.9%	49.5%
Female	44,493 ±868	50.7% ±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: 87,826
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
White alone	20,152 ±1,318	22.9% ±1.5 pp	39.7%	61.0%
Black or African American alone	8,867 ±1,093	10.1% ±1.2 pp	5.4%	12.2%
American Indian and Alaska Native alone	1,233 ±467	1.4% ±0.5 pp	1.3%	0.9%
Asian alone	31,530 ±1,638	35.9% ±1.9 pp	15.5%	6.0%
Native Hawaiian and Other Pacific Islander alone	651 ±362 · low precision	0.7% ±0.4 pp · low precision	0.4%	0.2%
Some other race alone	13,352 ±1,767	15.2% ±2.0 pp	18.5%	7.1%
Two or more races	12,041 ±1,544	13.7% ±1.8 pp	19.2%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 87,826
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Not Hispanic or Latino	62,054 ±1,730	70.7% ±2.0 pp	59.8%	80.7%
Hispanic or Latino	25,772 ±1,733	29.3% ±2.0 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: 30,454
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Married-couple family	14,640 ±691	48.1% ±2.0 pp	48.4%	46.9%
Other family: male householder, no spouse present	1,655 ±410	5.4% ±1.3 pp	6.3%	5.1%
Other family: female householder, no spouse present	4,123 ±463	13.5% ±1.5 pp	13.1%	12.2%
Nonfamily: householder living alone	7,707 ±651	25.3% ±2.1 pp	24.3%	28.7%
Nonfamily: householder not living alone	2,329 ±442	7.6% ±1.4 pp	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 30,454
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Households with people under 18	8,862 ±508	29.1% ±1.5 pp	32.4%	29.5%
Households without people under 18	21,592 ±787	70.9% ±2.0 pp	67.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 30,454
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
One-person nonfamily households	7,707 ±651	25.3% ±2.1 pp	24.3%	28.7%
Two-person households	8,686 ±716	28.5% ±2.2 pp	30.5%	33.8%
Three-person households	5,876 ±554	19.3% ±1.8 pp	16.7%	15.3%
Four-person households	3,999 ±474	13.1% ±1.5 pp	14.9%	12.6%
Five-person households	2,517 ±357	8.3% ±1.2 pp	7.7%	5.9%
Six-person households	875 ±226	2.9% ±0.7 pp	3.3%	2.2%
Seven or more people	794 ±288	2.6% ±0.9 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: 87,826
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Native	54,085 ±1,648	61.6% ±1.9 pp	73.0%	85.9%
Foreign born	33,741 ±1,640	38.4% ±1.9 pp	27.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 84,043
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
English only	38,214 ±1,700	45.5% ±2.0 pp	55.6%	77.7%
Spanish	17,816 ±1,625	21.2% ±1.9 pp	28.3%	13.6%
French, Haitian, or Cajun	356 ±194 · low precision	0.4% ±0.2 pp · low precision	0.4%	0.7%
German or other West Germanic	88 ±63 · low precision	0.1% ±0.1 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	873 ±644 · low precision	1.0% ±0.8 pp · low precision	0.7%	0.7%
Other Indo-European	1,917 ±454	2.3% ±0.5 pp	3.5%	2.0%
Korean	595 ±415 · low precision	0.7% ±0.5 pp · low precision	1.0%	0.3%
Chinese, including Mandarin and Cantonese	13,938 ±1,347	16.6% ±1.6 pp	3.5%	1.1%
Vietnamese	2,133 ±823	2.5% ±1.0 pp	1.5%	0.5%
Tagalog, including Filipino	5,359 ±1,030	6.4% ±1.2 pp	2.1%	0.6%
Other Asian and Pacific Island	1,237 ±353	1.5% ±0.4 pp	2.0%	1.1%
Arabic	724 ±416 · low precision	0.9% ±0.5 pp · low precision	0.6%	0.5%
Other and unspecified	793 ±347	0.9% ±0.4 pp	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: 65,074
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Less than high school graduate	11,594 ±1,069	17.8% ±1.6 pp	15.3%	10.4%
High school graduate or equivalency	14,214 ±1,194	21.8% ±1.8 pp	20.5%	26.0%
Some college, no degree	12,451 ±1,057	19.1% ±1.6 pp	19.3%	19.1%
Associate’s degree	5,163 ±598	7.9% ±0.9 pp	7.9%	8.8%
Bachelor’s degree	15,091 ±1,005	23.2% ±1.5 pp	22.7%	21.6%
Graduate or professional degree	6,561 ±628	10.1% ±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: 87,054
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Same house	80,890 ±963	92.9% ±1.1 pp	89.2%	87.7%
Moved within same county	3,910 ±820	4.5% ±0.9 pp	6.4%	6.3%
Moved from a different county in the same state	1,473 ±409	1.7% ±0.5 pp	2.6%	3.1%
Moved from a different state	393 ±196	0.5% ±0.2 pp	1.1%	2.3%
Moved from abroad	388 ±212 · 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

5.1% of San Leandro residents (±0.8 percentage points) had no health insurance coverage when surveyed, compared with 6.6% in California and 8.4% nationally. 93.4% 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 Leandro	California	U.S.	Compared with California
People without health insurance Civilian noninstitutionalized population	5.1% ±0.8 pp	6.6%	8.4%	Lower
Households with a broadband subscription Households	93.4% ±0.9 pp	93.5%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	3.6% ±0.6 pp	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 Leandro . 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 Leandro housing and cost context or return to the city profile.