78221 ZIP Code — San Antonio, TX

Bexar County, Texas

ZIP code 78221 is located in San Antonio, Texas, within Bexar County. It covers approximately 36.31 square miles and serves a population of 40,272 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 210.

About ZIP code 78221

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1950s, giving the area an established character. Median home value is $138,900. Owner-occupancy sits near the national average at 68%.

Median household income is $57,209. Poverty affects 18% of residents, above the national average. SNAP benefit usage at 20% of households reflects economic stress in the area.

The dominant occupation class is sales and office, with education and healthcare as the leading industry. The average commute of 26 minutes is near the national average.

College attainment at 10% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of obesity (44%), diabetes (17%) compared to national benchmarks. 22% of residents lack health insurance, above the national average.

Overall, ZIP code 78221 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, and elevated reliance on food assistance.

40,272

population

36.31

sq mi land

Standard

ZIP type

Central (CT)

timezone

78221 ZIP code map

Cities in ZIP code 78221

Below are the cities the US Postal Service accepts for ZIP code 78221. Using any city not on this list may result in mail delivery delays.

City	Status
San Antonio	Preferred

Nearby ZIP codes

78214 San Antonio (2.6 mi) 78224 San Antonio (3.7 mi) 78235 San Antonio (4.1 mi) 78223 San Antonio (6.3 mi) 78264 San Antonio (6.6 mi) 78211 San Antonio (6.6 mi) 78210 San Antonio (7.3 mi) 78222 San Antonio (7.3 mi) 78225 San Antonio (7.4 mi) 78226 San Antonio (7.6 mi) 78204 San Antonio (8.1 mi) 78241 San Antonio (8.4 mi)

Demographics updated 05/2026

Population
Total population	40,272
Population density	1,109 / sq mi
State FIPS	48
County FIPS	029

Geography
Land area	36.31 sq mi
Water area	1.84 sq mi
Latitude	29.2920
Longitude	-98.4756
Timezone	Central (CT)
Area code	210

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	55.0%	43.3%	39.5%
$50k – $100k	29.8%	31.4%	30.1%
$100k – $200k	14.6%	19.9%	22.6%
Over $200k	0.6%	5.4%	7.8%

Demographics & statistics

40,272

Population

1,109

People per sq mi

35.0

Median age

$57,209

Median household income

$22,079

Per capita income

$138,900

Median home value

$1,043

Median monthly rent

67.9%

Home ownership

18.3%

Poverty rate

6.0%

Unemployment

10,239

Housing units

10.3%

Bachelor's or higher

Age distribution

Male Female

1,354

Under 5

1,292

1,327

5–9

1,266

1,553

10–14

1,482

1,796

15–19

1,713

1,688

20–24

1,611

2,589

25–34

2,470

2,510

35–44

2,395

2,406

45–54

2,296

1,683

55–59

1,606

952

60–64

908

1,578

65–74

1,505

853

75–84

813

320

85+

306

← Male

Female →

Age summary

Group	Count	%
Under 18	10,475	26.0%
18 and over	29,797	74.0%
65 and over	5,375	13.3%
Median age	35.0 years

Race & ethnicity

White 44.1%

Hispanic or Latino 26.4%

Two or more races 14.2%

Other race 12.8%

Black or African American 0.9%

American Indian / Alaska Native 0.9%

Asian 0.6%

Group	Count	%
White	24,146	44.1%
Hispanic or Latino	14,468	26.4%
Two or more races	7,773	14.2%
Other race	6,992	12.8%
Black or African American	515	0.9%
American Indian / Alaska Native	507	0.9%
Asian	339	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	55.0%	43.3%	39.5%
$50k – $100k	29.8%	31.4%	30.1%
$100k – $200k	14.6%	19.9%	22.6%
Over $200k	0.6%	5.4%	7.8%

Under $10k 5.3%

$10k–$15k 5.7%

$15k–$25k 10.9%

$25k–$35k 10.9%

$35k–$50k 11.4%

$50k–$75k 19.6%

$75k–$100k 16.7%

$100k–$150k 15.5%

$150k–$200k 2.8%

$200k+ 1.2%

Range	% of households
Under $10k	5.3%
$10k–$15k	5.7%
$15k–$25k	10.9%
$25k–$35k	10.9%
$35k–$50k	11.4%
$50k–$75k	19.6%
$75k–$100k	16.7%
$100k–$150k	15.5%
$150k–$200k	2.8%
$200k+	1.2%
Median income	$57,209

Housing

Home values

Under $50k 4.5%

$50k–$100k 27.3%

$100k–$150k 21.7%

$150k–$200k 23.7%

$200k–$300k 17.9%

$300k–$500k 2.7%

$500k–$1M 0.6%

$1M+ 1.7%

Housing overview

Metric	Value
Median home value	$138,900
Median rent / month	$1,043
Owner occupied	67.9%
Renter occupied	32.1%
Vacant	9.7%
Single-family detached	78.7%
Large apartment buildings	4.3%
Mobile homes	4.0%
Median rooms	5.3
Avg household size (owned)	3.09

Year built

Era	%
2020 or later	1.8%
2010–2019	11.6%
2000–2009	11.8%
1990–1999	5.8%
1980–1989	9.7%
1970–1979	14.1%
1960–1969	15.5%
1950–1959	21.0%
1940–1949	6.1%
1939 or earlier	2.4%

Bedrooms

Size	% of units
No bedroom (studio)	1.5%
1 bedroom	10.9%
2 bedrooms	22.9%
3 bedrooms	46.7%
4 bedrooms	15.7%
5+ bedrooms	2.4%

Vehicles per household

Vehicles	% of households
No vehicle	9.0%
1 vehicle	27.6%
2 vehicles	38.8%
3 or more	24.6%

Heating fuel

Fuel type	%
Utility gas	35.7%
Electricity	61.7%
Propane / LP gas	0.9%
Fuel oil	0.1%
No fuel used	1.6%

Households & families

Household type	Count	%
Married-couple family	5,799	44.5%
Cohabiting couple	1,229	9.4%
Male householder, no spouse	2,132	16.4%
Female householder, no spouse	3,863	29.7%
Households with children under 18	5,123	39.3%
Households with seniors (65+)	3,843	29.5%
Average household size	3.08

Marital status

Status	Male	Female
Never married	43.3%	34.3%
Married	42.6%	42.5%
Separated	1.6%	3.4%
Widowed	2.7%	8.1%
Divorced	9.9%	11.8%

Education

Less than 9th grade 13.6%

Some HS, no diploma 13.6%

HS graduate 36.6%

Some college, no degree 19.7%

Associate's degree 6.2%

Bachelor's degree 6.9%

Graduate / professional 3.3%

Metric	%
HS diploma or higher	72.8%
Bachelor's or higher	10.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	652	5.9%
Kindergarten	683	6.1%
Elementary school	4,499	40.5%
High school	2,898	26.1%
College / grad school	2,383	21.4%

Employment

Industry of employment

Education & healthcare 20.7%

Construction 12.2%

Retail trade 11.2%

Arts, food & hospitality 11.0%

Professional & management 9.9%

Manufacturing 9.7%

Transportation & utilities 7.9%

Other services 5.8%

Finance & real estate 5.1%

Public administration 2.6%

Agriculture & mining 2.1%

Wholesale trade 1.4%

Information 0.7%

Occupation

Category	%
Management, business & arts	20.5%
Service	24.1%
Sales & office	24.5%
Natural resources & construction	14.9%
Production & transportation	16.0%

Employment type

Type	%
Private sector	75.6%
Government	14.1%
Self-employed	10.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	71.2%
Carpool	18.9%
Public transit	2.3%
Walk	1.6%
Work from home	4.5%
Other means	1.5%
Avg commute (minutes)	26.3

Poverty

All people 18.3%

Under 18 years 22.2%

18 and over 16.9%

Married-couple families 10.5%

Female-led households 32.5%

Income support

Source	% of households
Social Security	26.5%
Retirement income	18.3%
Supplemental Security	6.3%
Cash public assistance	2.8%
Food stamps / SNAP	20.2%

Health indicators

Condition	%
Obesity	44.3%
High blood pressure	36.4%
High cholesterol	34.6%
Diabetes	17.2%
Heart disease	7.1%
Stroke	3.3%
Asthma	9.2%
Arthritis	21.8%
Kidney disease	3.7%
Pulmonary disease	6.3%
Cancer	4.7%

Behavior / access	%
Smoking	17.6%
Binge drinking	15.9%
No physical activity	34.0%
Less than 7 hrs sleep	37.4%
Depression	21.3%
Fair or poor health	27.7%
Poor mental health	16.6%
Poor physical health	14.3%
No health insurance	46.5%
Visited doctor (checkup)	70.6%
Visited dentist	43.8%
Cholesterol screening	86.0%
Teeth loss	19.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,807	6.1%

Disability	%
Any disability	17.3%
Under 18	6.7%
18–64 years	14.6%
65 and over	50.4%

Health insurance coverage

Type	%
Private insurance	48.7%
Public insurance	36.7%
No insurance	21.9%
Uninsured under 19	12.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	37,626	93.4%
Spanish	6,371	16.9%
Other Indo-European	6,318	16.8%
Asian & Pacific Islander	31	0.1%
Other languages	22	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	33,879	84.1%
Born in same state	33,448	83.1%
Born in different state	31,292	77.7%
Foreign born	431	1.1%
Naturalized citizen	6,393	15.9%
Not a US citizen	2,571	40.2%

Ancestry

Ancestry	Count	%
Arab	3,157	7.8%
Italian	1,076	2.7%
French	426	1.1%
English	63	0.2%

Ancestry	Count	%
Irish	18	0%
Dutch	14	0%
German	7	0%

Technology access

Metric	% of households
Computer access	32.3%
Internet access	90.4%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 78221

What city is ZIP code 78221 in?

ZIP code 78221 is primarily assigned to San Antonio, Texas.

What county is ZIP code 78221 in?

ZIP code 78221 falls within Bexar County, Texas.

How educated is the population of ZIP code 78221?

10% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What is the poverty rate in ZIP code 78221?

18% of residents in ZIP code 78221 live below the poverty line, above the national average.

What is the typical home value in ZIP code 78221?

The median home value in ZIP code 78221 is $138,900.

What are the health statistics for ZIP code 78221?

Health data for ZIP code 78221 shows elevated rates of obesity (44%) and diabetes (17%) compared to national benchmarks.

What timezone is ZIP code 78221 in?

ZIP code 78221 observes the CST timezone.