Santa Clara, California demographics

Santa Clara, CA demographics: median age 34.6; 65.9% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Santa Clara city, California · Incorporated city · GEOID 0669084. The survey estimates a population of 130,256 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Santa Clara is 34.6 years, with a 90% margin of error of 0.5 years. There are 50,088 households (±882). 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	34.6 ±0.5	37.9 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 130,256
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Under 18	22,200 ±1,193	17.0% ±0.9 pp	22.0%	22.0%
18–34	43,979 ±1,909	33.8% ±1.5 pp	23.9%	22.8%
35–64	49,214 ±1,662	37.8% ±1.3 pp	38.5%	38.0%
65 and older	14,863 ±861	11.4% ±0.7 pp	15.7%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 130,256
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Male	67,684 ±1,301	52.0% ±1.0 pp	49.9%	49.5%
Female	62,572 ±1,298	48.0% ±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: 130,256
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
White alone	38,502 ±1,930	29.6% ±1.5 pp	39.7%	61.0%
Black or African American alone	2,245 ±560	1.7% ±0.4 pp	5.4%	12.2%
American Indian and Alaska Native alone	760 ±339	0.6% ±0.3 pp	1.3%	0.9%
Asian alone	65,658 ±2,133	50.4% ±1.6 pp	15.5%	6.0%
Native Hawaiian and Other Pacific Islander alone	280 ±192 · low precision	0.2% ±0.1 pp · low precision	0.4%	0.2%
Some other race alone	10,498 ±1,577	8.1% ±1.2 pp	18.5%	7.1%
Two or more races	12,313 ±1,275	9.5% ±1.0 pp	19.2%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 130,256
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Not Hispanic or Latino	109,816 ±1,593	84.3% ±1.2 pp	59.8%	80.7%
Hispanic or Latino	20,440 ±1,588	15.7% ±1.2 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: 50,088
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Married-couple family	25,116 ±904	50.1% ±1.6 pp	48.4%	46.9%
Other family: male householder, no spouse present	2,409 ±457	4.8% ±0.9 pp	6.3%	5.1%
Other family: female householder, no spouse present	3,566 ±502	7.1% ±1.0 pp	13.1%	12.2%
Nonfamily: householder living alone	12,663 ±1,005	25.3% ±2.0 pp	24.3%	28.7%
Nonfamily: householder not living alone	6,334 ±548	12.6% ±1.1 pp	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 50,088
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Households with people under 18	13,804 ±640	27.6% ±1.2 pp	32.4%	29.5%
Households without people under 18	36,284 ±1,165	72.4% ±1.9 pp	67.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 50,088
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
One-person nonfamily households	12,663 ±1,005	25.3% ±2.0 pp	24.3%	28.7%
Two-person households	17,496 ±995	34.9% ±1.9 pp	30.5%	33.8%
Three-person households	9,714 ±799	19.4% ±1.6 pp	16.7%	15.3%
Four-person households	7,188 ±652	14.4% ±1.3 pp	14.9%	12.6%
Five-person households	1,939 ±368	3.9% ±0.7 pp	7.7%	5.9%
Six-person households	598 ±161	1.2% ±0.3 pp	3.3%	2.2%
Seven or more people	490 ±161	1.0% ±0.3 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: 130,256
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Native	69,765 ±2,331	53.6% ±1.8 pp	73.0%	85.9%
Foreign born	60,491 ±2,328	46.4% ±1.8 pp	27.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 123,340
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
English only	52,877 ±2,299	42.9% ±1.8 pp	55.6%	77.7%
Spanish	11,234 ±1,429	9.1% ±1.2 pp	28.3%	13.6%
French, Haitian, or Cajun	696 ±289	0.6% ±0.2 pp	0.4%	0.7%
German or other West Germanic	904 ±475 · low precision	0.7% ±0.4 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	1,967 ±589	1.6% ±0.5 pp	0.7%	0.7%
Other Indo-European	17,040 ±2,092	13.8% ±1.7 pp	3.5%	2.0%
Korean	3,386 ±667	2.7% ±0.5 pp	1.0%	0.3%
Chinese, including Mandarin and Cantonese	16,776 ±1,514	13.6% ±1.2 pp	3.5%	1.1%
Vietnamese	3,002 ±725	2.4% ±0.6 pp	1.5%	0.5%
Tagalog, including Filipino	3,045 ±623	2.5% ±0.5 pp	2.1%	0.6%
Other Asian and Pacific Island	9,950 ±1,288	8.1% ±1.0 pp	2.0%	1.1%
Arabic	1,544 ±424	1.3% ±0.3 pp	0.6%	0.5%
Other and unspecified	919 ±308	0.7% ±0.2 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: 94,958
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Less than high school graduate	6,086 ±755	6.4% ±0.8 pp	15.3%	10.4%
High school graduate or equivalency	9,797 ±930	10.3% ±1.0 pp	20.5%	26.0%
Some college, no degree	10,908 ±1,061	11.5% ±1.1 pp	19.3%	19.1%
Associate’s degree	5,564 ±633	5.9% ±0.7 pp	7.9%	8.8%
Bachelor’s degree	29,073 ±1,416	30.6% ±1.4 pp	22.7%	21.6%
Graduate or professional degree	33,530 ±1,426	35.3% ±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: 129,065
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Same house	100,612 ±2,153	78.0% ±1.7 pp	89.2%	87.7%
Moved within same county	15,756 ±1,655	12.2% ±1.3 pp	6.4%	6.3%
Moved from a different county in the same state	4,662 ±738	3.6% ±0.6 pp	2.6%	3.1%
Moved from a different state	3,988 ±837	3.1% ±0.6 pp	1.1%	2.3%
Moved from abroad	4,047 ±874	3.1% ±0.7 pp	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

2.9% of Santa Clara residents (±0.5 percentage points) had no health insurance coverage when surveyed, compared with 6.6% in California and 8.4% nationally. 95.9% 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	Santa Clara	California	U.S.	Compared with California
People without health insurance Civilian noninstitutionalized population	2.9% ±0.5 pp	6.6%	8.4%	Lower
Households with a broadband subscription Households	95.9% ±0.4 pp	93.5%	91.0%	Higher
Veterans Civilian population age 18 and older	2.1% ±0.3 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 Santa Clara . 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 Santa Clara housing and cost context or return to the city profile.