Demographics · CA
Sunnyvale, CA demographics: 154,236 residents, with a median age of 35.2 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
154,236 people live in Sunnyvale, at a median age of 35.2 years (American Community Survey 2020–2024, a 5-year average)
Median age 35.2 years — younger than the U.S. median of 38.9.
ACS 2020–2024 5-year · ACS 5-Year Estimates 2020-2024 (released 2026-01-29)
In Sunnyvale, the largest race group is Asian (49.6%); 17.0% of residents are Hispanic or Latino (of any race); 50.2% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The median age in Sunnyvale is 35.2 years (±0.6), younger than the U.S. median of 38.9 years. The population is 52.4% male and 47.6% female. The largest age band is 25 to 34 at 23.8%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 9,977 | 6.5% | ±741 |
| 5 to 17 | 20,070 | 13.0% | ±1,173 |
| 18 to 24 | 9,829 | 6.4% | ±884 |
| 25 to 34 | 36,647 | 23.8% | ±1,761 |
| 35 to 44 | 24,516 | 15.9% | ±1,181 |
| 45 to 54 | 17,209 | 11.2% | ±830 |
| 55 to 64 | 16,003 | 10.4% | ±965 |
| 65 to 74 | 10,895 | 7.1% | ±743 |
| 75 and over | 9,090 | 5.9% | ±667 |
Median age by sex: 34.6 (male) · 36.1 (female).
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B01001 sex by age, B01002 median age) · place-grain · margins of error at the 90% confidence level · methodology →
ACS 2020–2024 · B02001 / B03003
The largest race group in Sunnyvale is Asian at 49.6% of the population. Separately, 17.0% of residents are Hispanic or Latino of any race. Race and Hispanic origin are two different questions on the census form, so their shares are reported separately and are not additive.
| Race (alone, or two or more) | People | Share | ± margin |
|---|---|---|---|
| White alone | 43,766 | 28.4% | ±2,095 |
| Black or African American alone | 2,498 | 1.6% | ±685 |
| American Indian & Alaska Native alone | 902 | 0.6% | ±375 |
| Asian alone | 76,489 | 49.6% | ±2,596 |
| Native Hawaiian & Pacific Islander alone | 635 | 0.4% | ±500 · low precision |
| Some other race alone | 14,655 | 9.5% | ±2,138 |
| Two or more races | 15,291 | 9.9% | ±1,887 |
| Hispanic or Latino (of any race) | 26,230 | 17.0% | ±2,465 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B02001 race, B03003 Hispanic or Latino origin) · place-grain · margins of error at the 90% confidence level · methodology →
ACS 2020–2024 · B11001 / B25010
Sunnyvale has 60,293 households. 61.4% are family households and 26.0% are people living alone. The average household holds 2.54 people.
Total households
60,293
ACS 2020–2024 5-yr · B11001
Avg household size
2.54
ACS 2020–2024 5-yr · B25010 · ±0.04
Family households
61.4%
Share of all households · B11001
Living alone
26.0%
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 60,293 | ±1,051 |
| Family households | 37,036 | ±676 |
| Nonfamily households | 23,257 | ±1,126 |
| Householder living alone | 15,691 | ±1,037 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B11001 household type, B25010 average household size) · place-grain · methodology →
ACS 2020–2024 · B05002 / C16001
50.2% of Sunnyvale residents were born outside the United States. 39.5% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Chinese (incl. Mandarin, Cantonese) (16.1%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 50.2% | 77,433 people · B05002 |
| Speak only English at home (age 5+) | 39.5% | C16001 |
| Top non-English language at home | 16.1% | Chinese (incl. Mandarin, Cantonese) · 23,248 speakers · C16001 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B05002 place of birth, C16001 language spoken at home) · place-grain · methodology →
ACS 2020–2024 · B15003
69.3% of adults age 25 and over in Sunnyvale hold a bachelor's degree or higher (the U.S. share is about 35%).
| Measure | Value | Source / grain |
|---|---|---|
| Bachelor's degree or higher (age 25+) | 69.3% | B15003 lines 22–25 over line 1 · place-grain |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B15003 educational attainment, population 25+) · place-grain · methodology →
Sources · provenance
The GEOID for Sunnyvale is 0677000. Every figure on this page is a place-grain American Community Survey 5-Year 2020–2024 estimate (ACS 5-Year Estimates 2020-2024 (released 2026-01-29)) shown with its margin of error. Full per-dataset detail: /sources/.