Demographics · CA
Santa Ana, CA demographics: 312,534 residents, with a median age of 34.7 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
312,534 people live in Santa Ana, at a median age of 34.7 years (American Community Survey 2020–2024, a 5-year average)
Median age 34.7 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 Santa Ana, the largest race group is Some other race (45.6%); 76.6% of residents are Hispanic or Latino (of any race); 41.8% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The median age in Santa Ana is 34.7 years (±0.5), younger than the U.S. median of 38.9 years. The population is 51.3% male and 48.7% female. The largest age band is 5 to 17 at 17.6%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 16,628 | 5.3% | ±1,015 |
| 5 to 17 | 54,979 | 17.6% | ±1,903 |
| 18 to 24 | 33,803 | 10.8% | ±1,358 |
| 25 to 34 | 51,967 | 16.6% | ±1,736 |
| 35 to 44 | 44,001 | 14.1% | ±1,516 |
| 45 to 54 | 39,768 | 12.7% | ±1,197 |
| 55 to 64 | 35,779 | 11.4% | ±1,400 |
| 65 to 74 | 21,968 | 7.0% | ±1,133 |
| 75 and over | 13,641 | 4.4% | ±935 |
Median age by sex: 33.8 (male) · 35.8 (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 Santa Ana is Some other race at 45.6% of the population. Separately, 76.6% 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 | 52,268 | 16.7% | ±3,281 |
| Black or African American alone | 2,436 | 0.8% | ±541 |
| American Indian & Alaska Native alone | 5,615 | 1.8% | ±969 |
| Asian alone | 39,060 | 12.5% | ±2,367 |
| Native Hawaiian & Pacific Islander alone | 370 | 0.1% | ±203 · low precision |
| Some other race alone | 142,436 | 45.6% | ±4,891 |
| Two or more races | 70,349 | 22.5% | ±4,298 |
| Hispanic or Latino (of any race) | 239,503 | 76.6% | ±3,064 |
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
Santa Ana has 81,069 households. 79.2% are family households and 14.3% are people living alone. The average household holds 3.81 people.
Total households
81,069
ACS 2020–2024 5-yr · B11001
Avg household size
3.81
ACS 2020–2024 5-yr · B25010 · ±0.06
Family households
79.2%
Share of all households · B11001
Living alone
14.3%
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 81,069 | ±1,234 |
| Family households | 64,169 | ±1,136 |
| Nonfamily households | 16,900 | ±1,029 |
| Householder living alone | 11,616 | ±882 |
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
41.8% of Santa Ana residents were born outside the United States. 22.4% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Spanish (66.1%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 41.8% | 130,637 people · B05002 |
| Speak only English at home (age 5+) | 22.4% | C16001 |
| Top non-English language at home | 66.1% | Spanish · 195,702 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
18.3% of adults age 25 and over in Santa Ana 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+) | 18.3% | 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 Santa Ana is 0669000. 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/.