Santa Ana, California demographics

Santa Ana, CA demographics: median age 34.7; 18.3% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Santa Ana city, California · Incorporated city · GEOID 0669000. The survey estimates a population of 312,534 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Santa Ana is 34.7 years, with a 90% margin of error of 0.5 years. There are 81,069 households (±1,234). 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	34.7 ±0.5	37.9 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 312,534
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Under 18	71,607 ±2,157	22.9% ±0.7 pp	22.0%	22.0%
18–34	85,770 ±2,204	27.4% ±0.7 pp	23.9%	22.8%
35–64	119,548 ±2,386	38.3% ±0.8 pp	38.5%	38.0%
65 and older	35,609 ±1,469	11.4% ±0.5 pp	15.7%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 312,534
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Male	160,283 ±1,866	51.3% ±0.6 pp	49.9%	49.5%
Female	152,251 ±1,882	48.7% ±0.6 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: 312,534
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
White alone	52,268 ±3,281	16.7% ±1.0 pp	39.7%	61.0%
Black or African American alone	2,436 ±541	0.8% ±0.2 pp	5.4%	12.2%
American Indian and Alaska Native alone	5,615 ±969	1.8% ±0.3 pp	1.3%	0.9%
Asian alone	39,060 ±2,367	12.5% ±0.8 pp	15.5%	6.0%
Native Hawaiian and Other Pacific Islander alone	370 ±203 · low precision	0.1% ±0.1 pp · low precision	0.4%	0.2%
Some other race alone	142,436 ±4,891	45.6% ±1.6 pp	18.5%	7.1%
Two or more races	70,349 ±4,298	22.5% ±1.4 pp	19.2%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 312,534
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Not Hispanic or Latino	73,031 ±3,051	23.4% ±1.0 pp	59.8%	80.7%
Hispanic or Latino	239,503 ±3,064	76.6% ±1.0 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: 81,069
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Married-couple family	42,831 ±1,034	52.8% ±1.0 pp	48.4%	46.9%
Other family: male householder, no spouse present	6,850 ±547	8.4% ±0.7 pp	6.3%	5.1%
Other family: female householder, no spouse present	14,488 ±956	17.9% ±1.1 pp	13.1%	12.2%
Nonfamily: householder living alone	11,616 ±882	14.3% ±1.1 pp	24.3%	28.7%
Nonfamily: householder not living alone	5,284 ±619	6.5% ±0.8 pp	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 81,069
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Households with people under 18	34,123 ±1,009	42.1% ±1.1 pp	32.4%	29.5%
Households without people under 18	46,946 ±1,492	57.9% ±1.6 pp	67.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 81,069
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
One-person nonfamily households	11,616 ±882	14.3% ±1.1 pp	24.3%	28.7%
Two-person households	16,826 ±1,078	20.8% ±1.3 pp	30.5%	33.8%
Three-person households	12,124 ±795	15.0% ±1.0 pp	16.7%	15.3%
Four-person households	15,923 ±984	19.6% ±1.2 pp	14.9%	12.6%
Five-person households	11,370 ±755	14.0% ±0.9 pp	7.7%	5.9%
Six-person households	5,647 ±487	7.0% ±0.6 pp	3.3%	2.2%
Seven or more people	7,563 ±551	9.3% ±0.7 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: 312,534
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Native	181,897 ±3,278	58.2% ±1.0 pp	73.0%	85.9%
Foreign born	130,637 ±3,280	41.8% ±1.0 pp	27.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 295,906
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
English only	66,326 ±3,151	22.4% ±1.1 pp	55.6%	77.7%
Spanish	195,702 ±3,855	66.1% ±1.3 pp	28.3%	13.6%
French, Haitian, or Cajun	224 ±96	0.1% ±0.0 pp	0.4%	0.7%
German or other West Germanic	237 ±99	0.1% ±0.0 pp	0.3%	0.5%
Russian, Polish, or other Slavic	403 ±256 · low precision	0.1% ±0.1 pp · low precision	0.7%	0.7%
Other Indo-European	2,252 ±661	0.8% ±0.2 pp	3.5%	2.0%
Korean	827 ±250	0.3% ±0.1 pp	1.0%	0.3%
Chinese, including Mandarin and Cantonese	1,897 ±437	0.6% ±0.1 pp	3.5%	1.1%
Vietnamese	22,121 ±1,700	7.5% ±0.6 pp	1.5%	0.5%
Tagalog, including Filipino	1,842 ±529	0.6% ±0.2 pp	2.1%	0.6%
Other Asian and Pacific Island	3,254 ±845	1.1% ±0.3 pp	2.0%	1.1%
Arabic	443 ±207	0.1% ±0.1 pp	0.6%	0.5%
Other and unspecified	378 ±165	0.1% ±0.1 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: 207,124
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Less than high school graduate	68,556 ±2,345	33.1% ±1.1 pp	15.3%	10.4%
High school graduate or equivalency	55,355 ±1,875	26.7% ±0.9 pp	20.5%	26.0%
Some college, no degree	33,827 ±1,638	16.3% ±0.8 pp	19.3%	19.1%
Associate’s degree	11,484 ±874	5.5% ±0.4 pp	7.9%	8.8%
Bachelor’s degree	27,683 ±1,610	13.4% ±0.8 pp	22.7%	21.6%
Graduate or professional degree	10,219 ±795	4.9% ±0.4 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: 309,699
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Same house	284,643 ±2,083	91.9% ±0.7 pp	89.2%	87.7%
Moved within same county	17,801 ±1,598	5.7% ±0.5 pp	6.4%	6.3%
Moved from a different county in the same state	5,275 ±1,190	1.7% ±0.4 pp	2.6%	3.1%
Moved from a different state	1,165 ±366	0.4% ±0.1 pp	1.1%	2.3%
Moved from abroad	815 ±293	0.3% ±0.1 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

12.2% of Santa Ana residents (±0.6 percentage points) had no health insurance coverage when surveyed, compared with 6.6% in California and 8.4% nationally. 92.2% 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 Ana	California	U.S.	Compared with California
People without health insurance Civilian noninstitutionalized population	12.2% ±0.6 pp	6.6%	8.4%	Higher
Households with a broadband subscription Households	92.2% ±0.2 pp	93.5%	91.0%	Lower
Veterans Civilian population age 18 and older	1.8% ±0.2 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 Ana . 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 Ana housing and cost context or return to the city profile.