Sunnyvale, California demographics

Sunnyvale, CA demographics: median age 35.2; 69.3% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Sunnyvale city, California · Incorporated city · GEOID 0677000. The survey estimates a population of 154,236 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Sunnyvale is 35.2 years, with a 90% margin of error of 0.6 years. There are 60,293 households (±1,051). 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	35.2 ±0.6	37.9 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 154,236
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Under 18	30,047 ±1,387	19.5% ±0.9 pp	22.0%	22.0%
18–34	46,476 ±1,970	30.1% ±1.3 pp	23.9%	22.8%
35–64	57,728 ±1,736	37.4% ±1.1 pp	38.5%	38.0%
65 and older	19,985 ±998	13.0% ±0.6 pp	15.7%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 154,236
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Male	80,853 ±1,308	52.4% ±0.8 pp	49.9%	49.5%
Female	73,383 ±1,299	47.6% ±0.8 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: 154,236
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
White alone	43,766 ±2,095	28.4% ±1.4 pp	39.7%	61.0%
Black or African American alone	2,498 ±685	1.6% ±0.4 pp	5.4%	12.2%
American Indian and Alaska Native alone	902 ±375	0.6% ±0.2 pp	1.3%	0.9%
Asian alone	76,489 ±2,596	49.6% ±1.7 pp	15.5%	6.0%
Native Hawaiian and Other Pacific Islander alone	635 ±500 · low precision	0.4% ±0.3 pp · low precision	0.4%	0.2%
Some other race alone	14,655 ±2,138	9.5% ±1.4 pp	18.5%	7.1%
Two or more races	15,291 ±1,887	9.9% ±1.2 pp	19.2%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 154,236
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Not Hispanic or Latino	128,006 ±2,454	83.0% ±1.6 pp	59.8%	80.7%
Hispanic or Latino	26,230 ±2,465	17.0% ±1.6 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: 60,293
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Married-couple family	30,571 ±854	50.7% ±1.1 pp	48.4%	46.9%
Other family: male householder, no spouse present	1,987 ±379	3.3% ±0.6 pp	6.3%	5.1%
Other family: female householder, no spouse present	4,478 ±494	7.4% ±0.8 pp	13.1%	12.2%
Nonfamily: householder living alone	15,691 ±1,037	26.0% ±1.7 pp	24.3%	28.7%
Nonfamily: householder not living alone	7,566 ±660	12.5% ±1.1 pp	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 60,293
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Households with people under 18	17,501 ±620	29.0% ±0.9 pp	32.4%	29.5%
Households without people under 18	42,792 ±1,306	71.0% ±1.8 pp	67.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 60,293
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
One-person nonfamily households	15,691 ±1,037	26.0% ±1.7 pp	24.3%	28.7%
Two-person households	19,987 ±1,088	33.1% ±1.7 pp	30.5%	33.8%
Three-person households	11,702 ±845	19.4% ±1.4 pp	16.7%	15.3%
Four-person households	8,943 ±619	14.8% ±1.0 pp	14.9%	12.6%
Five-person households	2,653 ±343	4.4% ±0.6 pp	7.7%	5.9%
Six-person households	789 ±205	1.3% ±0.3 pp	3.3%	2.2%
Seven or more people	528 ±176	0.9% ±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: 154,236
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Native	76,803 ±2,223	49.8% ±1.4 pp	73.0%	85.9%
Foreign born	77,433 ±2,208	50.2% ±1.4 pp	27.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 144,259
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
English only	56,972 ±2,178	39.5% ±1.5 pp	55.6%	77.7%
Spanish	17,923 ±2,264	12.4% ±1.6 pp	28.3%	13.6%
French, Haitian, or Cajun	903 ±250	0.6% ±0.2 pp	0.4%	0.7%
German or other West Germanic	670 ±236	0.5% ±0.2 pp	0.3%	0.5%
Russian, Polish, or other Slavic	3,107 ±682	2.2% ±0.5 pp	0.7%	0.7%
Other Indo-European	15,974 ±1,543	11.1% ±1.1 pp	3.5%	2.0%
Korean	3,354 ±699	2.3% ±0.5 pp	1.0%	0.3%
Chinese, including Mandarin and Cantonese	23,248 ±1,562	16.1% ±1.1 pp	3.5%	1.1%
Vietnamese	2,405 ±483	1.7% ±0.3 pp	1.5%	0.5%
Tagalog, including Filipino	4,114 ±741	2.9% ±0.5 pp	2.1%	0.6%
Other Asian and Pacific Island	11,101 ±1,302	7.7% ±0.9 pp	2.0%	1.1%
Arabic	452 ±305 · low precision	0.3% ±0.2 pp · low precision	0.6%	0.5%
Other and unspecified	4,036 ±953	2.8% ±0.7 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: 114,360
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Less than high school graduate	6,359 ±679	5.6% ±0.6 pp	15.3%	10.4%
High school graduate or equivalency	11,392 ±980	10.0% ±0.8 pp	20.5%	26.0%
Some college, no degree	11,571 ±876	10.1% ±0.8 pp	19.3%	19.1%
Associate’s degree	5,734 ±570	5.0% ±0.5 pp	7.9%	8.8%
Bachelor’s degree	34,517 ±1,641	30.2% ±1.4 pp	22.7%	21.6%
Graduate or professional degree	44,787 ±1,710	39.2% ±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: 152,170
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Same house	122,083 ±2,308	80.2% ±1.5 pp	89.2%	87.7%
Moved within same county	18,154 ±1,865	11.9% ±1.2 pp	6.4%	6.3%
Moved from a different county in the same state	5,120 ±943	3.4% ±0.6 pp	2.6%	3.1%
Moved from a different state	3,816 ±734	2.5% ±0.5 pp	1.1%	2.3%
Moved from abroad	2,997 ±697	2.0% ±0.5 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 Sunnyvale residents (±0.4 percentage points) had no health insurance coverage when surveyed, compared with 6.6% in California and 8.4% nationally. 96.5% 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	Sunnyvale	California	U.S.	Compared with California
People without health insurance Civilian noninstitutionalized population	2.9% ±0.4 pp	6.6%	8.4%	Lower
Households with a broadband subscription Households	96.5% ±0.7 pp	93.5%	91.0%	Higher
Veterans Civilian population age 18 and older	2.7% ±0.4 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 Sunnyvale . 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 Sunnyvale housing and cost context or return to the city profile.