San Antonio, Texas demographics

San Antonio, TX demographics: median age 34.9; 29.0% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · San Antonio city, Texas · Incorporated city · GEOID 4865000. The survey estimates a population of 1,479,835 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in San Antonio is 34.9 years, with a 90% margin of error of 0.2 years. There are 554,581 households (±2,999). 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	34.9 ±0.2	35.6 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 1,479,835
Category	Count ± MOE	Share ± MOE (pp)	Texas	U.S.
Under 18	348,859 ±4,838	23.6% ±0.3 pp	25.0%	22.0%
18–34	393,867 ±4,157	26.6% ±0.3 pp	24.2%	22.8%
35–64	538,512 ±5,300	36.4% ±0.4 pp	37.4%	38.0%
65 and older	198,597 ±3,251	13.4% ±0.2 pp	13.4%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 1,479,835
Category	Count ± MOE	Share ± MOE (pp)	Texas	U.S.
Male	733,059 ±2,987	49.5% ±0.2 pp	49.9%	49.5%
Female	746,776 ±3,007	50.5% ±0.2 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: 1,479,835
Category	Count ± MOE	Share ± MOE (pp)	Texas	U.S.
White alone	600,199 ±9,297	40.6% ±0.6 pp	48.5%	61.0%
Black or African American alone	101,885 ±4,160	6.9% ±0.3 pp	12.2%	12.2%
American Indian and Alaska Native alone	19,406 ±2,063	1.3% ±0.1 pp	0.7%	0.9%
Asian alone	44,849 ±2,282	3.0% ±0.2 pp	5.6%	6.0%
Native Hawaiian and Other Pacific Islander alone	2,422 ±602	0.2% ±0.0 pp	0.1%	0.2%
Some other race alone	175,863 ±6,495	11.9% ±0.4 pp	9.3%	7.1%
Two or more races	535,211 ±9,989	36.2% ±0.7 pp	23.5%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 1,479,835
Category	Count ± MOE	Share ± MOE (pp)	Texas	U.S.
Not Hispanic or Latino	523,929 ±5,874	35.4% ±0.4 pp	60.3%	80.7%
Hispanic or Latino	955,906 ±5,902	64.6% ±0.4 pp	39.7%	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: 554,581
Category	Count ± MOE	Share ± MOE (pp)	Texas	U.S.
Married-couple family	212,940 ±3,037	38.4% ±0.5 pp	48.9%	46.9%
Other family: male householder, no spouse present	35,382 ±1,812	6.4% ±0.3 pp	5.4%	5.1%
Other family: female householder, no spouse present	92,929 ±2,685	16.8% ±0.5 pp	13.4%	12.2%
Nonfamily: householder living alone	173,823 ±3,658	31.3% ±0.6 pp	26.2%	28.7%
Nonfamily: householder not living alone	39,507 ±2,003	7.1% ±0.4 pp	6.0%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 554,581
Category	Count ± MOE	Share ± MOE (pp)	Texas	U.S.
Households with people under 18	173,448 ±2,765	31.3% ±0.5 pp	34.7%	29.5%
Households without people under 18	381,133 ±4,129	68.7% ±0.6 pp	65.3%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 554,581
Category	Count ± MOE	Share ± MOE (pp)	Texas	U.S.
One-person nonfamily households	173,823 ±3,658	31.3% ±0.6 pp	26.2%	28.7%
Two-person households	164,944 ±3,297	29.7% ±0.6 pp	31.4%	33.8%
Three-person households	84,661 ±2,394	15.3% ±0.4 pp	16.3%	15.3%
Four-person households	68,420 ±2,563	12.3% ±0.5 pp	14.2%	12.6%
Five-person households	37,809 ±1,764	6.8% ±0.3 pp	7.3%	5.9%
Six-person households	15,096 ±1,267	2.7% ±0.2 pp	2.9%	2.2%
Seven or more people	9,828 ±871	1.8% ±0.2 pp	1.7%	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: 1,479,835
Category	Count ± MOE	Share ± MOE (pp)	Texas	U.S.
Native	1,257,699 ±6,376	85.0% ±0.4 pp	82.4%	85.9%
Foreign born	222,136 ±6,401	15.0% ±0.4 pp	17.6%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 1,387,449
Category	Count ± MOE	Share ± MOE (pp)	Texas	U.S.
English only	827,121 ±7,907	59.6% ±0.6 pp	64.9%	77.7%
Spanish	505,295 ±6,762	36.4% ±0.5 pp	28.1%	13.6%
French, Haitian, or Cajun	1,957 ±520	0.1% ±0.0 pp	0.3%	0.7%
German or other West Germanic	2,671 ±578	0.2% ±0.0 pp	0.3%	0.5%
Russian, Polish, or other Slavic	1,891 ±485	0.1% ±0.0 pp	0.2%	0.7%
Other Indo-European	13,797 ±1,413	1.0% ±0.1 pp	1.7%	2.0%
Korean	2,017 ±463	0.1% ±0.0 pp	0.2%	0.3%
Chinese, including Mandarin and Cantonese	4,555 ±986	0.3% ±0.1 pp	0.7%	1.1%
Vietnamese	4,102 ±1,120	0.3% ±0.1 pp	0.9%	0.5%
Tagalog, including Filipino	4,156 ±702	0.3% ±0.1 pp	0.3%	0.6%
Other Asian and Pacific Island	9,501 ±1,438	0.7% ±0.1 pp	1.1%	1.1%
Arabic	5,830 ±1,541	0.4% ±0.1 pp	0.4%	0.5%
Other and unspecified	4,556 ±1,005	0.3% ±0.1 pp	0.7%	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: 971,753
Category	Count ± MOE	Share ± MOE (pp)	Texas	U.S.
Less than high school graduate	149,323 ±3,992	15.4% ±0.4 pp	14.0%	10.4%
High school graduate or equivalency	253,411 ±5,058	26.1% ±0.5 pp	24.3%	26.0%
Some college, no degree	207,684 ±4,801	21.4% ±0.5 pp	20.1%	19.1%
Associate’s degree	79,651 ±3,011	8.2% ±0.3 pp	7.7%	8.8%
Bachelor’s degree	173,016 ±4,133	17.8% ±0.4 pp	21.5%	21.6%
Graduate or professional degree	108,668 ±3,317	11.2% ±0.3 pp	12.3%	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: 1,462,671
Category	Count ± MOE	Share ± MOE (pp)	Texas	U.S.
Same house	1,206,526 ±7,530	82.5% ±0.5 pp	86.0%	87.7%
Moved within same county	170,598 ±6,348	11.7% ±0.4 pp	7.4%	6.3%
Moved from a different county in the same state	40,897 ±2,575	2.8% ±0.2 pp	3.9%	3.1%
Moved from a different state	31,781 ±2,840	2.2% ±0.2 pp	2.0%	2.3%
Moved from abroad	12,869 ±1,857	0.9% ±0.1 pp	0.8%	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

17.6% of San Antonio residents (±0.4 percentage points) had no health insurance coverage when surveyed, compared with 17.1% in Texas and 8.4% nationally. 91.0% 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	San Antonio	Texas	U.S.	Compared with Texas
People without health insurance Civilian noninstitutionalized population	17.6% ±0.4 pp	17.1%	8.4%	Higher
Households with a broadband subscription Households	91.0% ±0.2 pp	91.4%	91.0%	Lower
Veterans Civilian population age 18 and older	8.1% ±0.3 pp	6.2%	6.2%	Higher

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 San Antonio . 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 San Antonio housing and cost context or return to the city profile.