78204 ZIP Code — San Antonio, TX

Bexar County, Texas

ZIP code 78204 is located in San Antonio, Texas, within Bexar County. It covers approximately 2.71 square miles and serves a population of 11,969 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 210.

About ZIP code 78204

The housing stock consists of a significant share of large multi-unit buildings. Most homes were built in the pre-1940, giving the area an established character. Median home value is $117,800. Renters make up the majority at 55%, typical of denser urban areas.

Median household income is $47,620. Poverty affects 19% of residents, above the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 24 minutes is near the national average.

Educational attainment is near the national average, with 22% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of diabetes (17%) compared to national benchmarks. 25% of residents lack health insurance, above the national average.

11,969

population

2.71

sq mi land

Standard

ZIP type

Central (CT)

timezone

78204 ZIP code map

Cities in ZIP code 78204

Below are the cities the US Postal Service accepts for ZIP code 78204. Using any city not on this list may result in mail delivery delays.

City	Status
San Antonio	Preferred

Nearby ZIP codes

78207 San Antonio (1.4 mi) 78285 San Antonio (1.5 mi) 78243 San Antonio (1.5 mi) 78289 San Antonio (1.5 mi) 78288 San Antonio (1.5 mi) 78206 San Antonio (1.5 mi) 78225 San Antonio (1.7 mi) 78205 San Antonio (1.8 mi) 78203 San Antonio (2.9 mi) 78210 San Antonio (2.9 mi) 78215 San Antonio (2.9 mi) 78202 San Antonio (3.1 mi)

Demographics updated 06/2026

Population
Total population	11,969
Population density	4,417 / sq mi
State FIPS	48
County FIPS	029

Geography
Land area	2.71 sq mi
Water area	0.08 sq mi
Latitude	29.4060
Longitude	-98.5078
Timezone	Central (CT)
Area code	210

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	57.4%	43.3%	39.5%
$50k – $100k	23.6%	31.4%	30.1%
$100k – $200k	14.3%	19.9%	22.6%
Over $200k	4.7%	5.4%	7.8%

Demographics & statistics

11,969

Population

4,417

People per sq mi

34.0

Median age

$47,620

Median household income

$31,277

Per capita income

$117,800

Median home value

$1,327

Median monthly rent

44.8%

Home ownership

19.4%

Poverty rate

5.3%

Unemployment

3,540

Housing units

22.0%

Bachelor's or higher

Age distribution

Male Female

413

Under 5

365

466

5–9

411

308

10–14

272

354

15–19

312

415

20–24

366

1,359

25–34

1,200

783

35–44

691

707

45–54

625

391

55–59

346

322

60–64

285

420

65–74

371

269

75–84

238

149

85+

131

← Male

Female →

Age summary

Group	Count	%
Under 18	2,540	21.2%
18 and over	9,429	78.8%
65 and over	1,578	13.2%
Median age	34.0 years

Race & ethnicity

White 35.8%

Hispanic or Latino 31.2%

Two or more races 23.1%

Other race 8.5%

Black or African American 1.1%

American Indian / Alaska Native 0.3%

Asian 0.1%

Group	Count	%
White	6,224	35.8%
Hispanic or Latino	5,423	31.2%
Two or more races	4,016	23.1%
Other race	1,474	8.5%
Black or African American	194	1.1%
American Indian / Alaska Native	49	0.3%
Asian	12	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	57.4%	43.3%	39.5%
$50k – $100k	23.6%	31.4%	30.1%
$100k – $200k	14.3%	19.9%	22.6%
Over $200k	4.7%	5.4%	7.8%

Under $10k 9.3%

$10k–$15k 7.4%

$15k–$25k 11.6%

$25k–$35k 13.4%

$35k–$50k 11.0%

$50k–$75k 14.2%

$75k–$100k 10.0%

$100k–$150k 10.9%

$150k–$200k 6.8%

$200k+ 5.3%

Range	% of households
Under $10k	9.3%
$10k–$15k	7.4%
$15k–$25k	11.6%
$25k–$35k	13.4%
$35k–$50k	11.0%
$50k–$75k	14.2%
$75k–$100k	10.0%
$100k–$150k	10.9%
$150k–$200k	6.8%
$200k+	5.3%
Median income	$47,620

Housing

Home values

Under $50k 8.1%

$50k–$100k 30.2%

$100k–$150k 23.2%

$150k–$200k 7.6%

$200k–$300k 15.6%

$300k–$500k 6.8%

$500k–$1M 7.3%

$1M+ 1.2%

Housing overview

Metric	Value
Median home value	$117,800
Median rent / month	$1,327
Owner occupied	44.8%
Renter occupied	55.2%
Vacant	20.4%
Single-family detached	61.7%
Large apartment buildings	26.4%
Mobile homes	0.7%
Median rooms	4.1
Avg household size (owned)	2.64

Year built

Era	%
2020 or later	0.3%
2010–2019	19.6%
2000–2009	4.9%
1990–1999	2.8%
1980–1989	3.5%
1970–1979	3.4%
1960–1969	6.1%
1950–1959	12.3%
1940–1949	22.7%
1939 or earlier	24.3%

Bedrooms

Size	% of units
No bedroom (studio)	7.5%
1 bedroom	27.8%
2 bedrooms	38.0%
3 bedrooms	21.0%
4 bedrooms	5.6%
5+ bedrooms	0.1%

Vehicles per household

Vehicles	% of households
No vehicle	13.6%
1 vehicle	47.1%
2 vehicles	26.5%
3 or more	12.7%

Heating fuel

Fuel type	%
Utility gas	31.5%
Electricity	67.9%
No fuel used	0.7%

Households & families

Household type	Count	%
Married-couple family	1,213	24.1%
Cohabiting couple	179	3.6%
Male householder, no spouse	1,580	31.4%
Female householder, no spouse	2,052	40.8%
Households with children under 18	1,421	28.3%
Households with seniors (65+)	1,220	24.3%
Average household size	2.33

Marital status

Status	Male	Female
Never married	50.2%	38.0%
Married	31.2%	32.7%
Separated	5.5%	5.2%
Widowed	2.9%	9.9%
Divorced	10.2%	14.2%

Education

Less than 9th grade 10.7%

Some HS, no diploma 13.2%

HS graduate 27.1%

Some college, no degree 21.1%

Associate's degree 5.9%

Bachelor's degree 10.9%

Graduate / professional 11.1%

Metric	%
HS diploma or higher	76.1%
Bachelor's or higher	22.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	64	2.5%
Kindergarten	269	10.5%
Elementary school	1,183	46.2%
High school	496	19.4%
College / grad school	548	21.4%

Employment

Industry of employment

Education & healthcare 22.0%

Professional & management 14.4%

Retail trade 13.5%

Construction 12.2%

Arts, food & hospitality 9.0%

Manufacturing 8.1%

Finance & real estate 6.4%

Public administration 4.2%

Transportation & utilities 4.0%

Other services 3.7%

Information 1.3%

Agriculture & mining 0.9%

Wholesale trade 0.3%

Occupation

Category	%
Management, business & arts	34.9%
Service	15.9%
Sales & office	25.2%
Natural resources & construction	11.4%
Production & transportation	12.6%

Employment type

Type	%
Private sector	79.4%
Government	12.9%
Self-employed	7.3%
Unpaid family workers	0.5%

Commute

Method	%
Drive alone	72.3%
Carpool	9.1%
Public transit	6.4%
Walk	2.1%
Work from home	8.8%
Other means	1.3%
Avg commute (minutes)	24.1

Poverty

All people 19.4%

Under 18 years 31.0%

18 and over 16.3%

Married-couple families 10.1%

Female-led households 15.8%

Income support

Source	% of households
Social Security	26.7%
Retirement income	14.3%
Supplemental Security	11.0%
Cash public assistance	2.5%
Food stamps / SNAP	15.4%

Health indicators

Condition	%
Obesity	43.5%
High blood pressure	35.8%
High cholesterol	34.1%
Diabetes	17.0%
Heart disease	6.8%
Stroke	3.1%
Asthma	8.8%
Arthritis	21.0%
Kidney disease	3.6%
Pulmonary disease	5.4%
Cancer	4.7%

Behavior / access	%
Smoking	15.5%
Binge drinking	16.0%
No physical activity	32.0%
Less than 7 hrs sleep	36.3%
Depression	20.0%
Fair or poor health	25.8%
Poor mental health	15.4%
Poor physical health	13.4%
No health insurance	43.3%
Visited doctor (checkup)	71.1%
Visited dentist	47.2%
Cholesterol screening	87.3%
Teeth loss	15.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	376	4.0%

Disability	%
Any disability	18.8%
Under 18	10.1%
18–64 years	15.8%
65 and over	47.3%

Health insurance coverage

Type	%
Private insurance	42.2%
Public insurance	39.8%
No insurance	25.0%
Uninsured under 19	8.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	11,191	93.5%
Spanish	2,011	18.0%
Other Indo-European	2,011	18.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	10,192	85.2%
Born in same state	9,998	83.5%
Born in different state	8,510	71.1%
Foreign born	194	1.6%
Naturalized citizen	1,777	14.8%
Not a US citizen	622	35.0%

Ancestry

Ancestry	Count	%
Arab	619	5.2%
French	255	2.1%
Italian	243	2%
English	29	0.2%

Ancestry	Count	%
Irish	15	0.1%
Polish	15	0.1%
German	8	0.1%

Technology access

Metric	% of households
Computer access	42.0%
Internet access	92.3%

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

Frequently asked questions about ZIP code 78204

What city is ZIP code 78204 in?

ZIP code 78204 is primarily assigned to San Antonio, Texas.

What county is ZIP code 78204 in?

ZIP code 78204 falls within Bexar County, Texas.

Is ZIP code 78204 mostly rentals?

55% of occupied units in ZIP code 78204 are renter-occupied.

What is the poverty rate in ZIP code 78204?

19% of residents in ZIP code 78204 live below the poverty line, above the national average.

What is the typical home value in ZIP code 78204?

The median home value in ZIP code 78204 is $117,800.

What is the population of ZIP code 78204?

ZIP code 78204 has an estimated population of 11,969 residents, with a density of 4,415 people per square mile.

What timezone is ZIP code 78204 in?

ZIP code 78204 observes the CST timezone.