78218 ZIP Code — San Antonio, TX

Bexar County, Texas

ZIP code 78218 is located in San Antonio, Texas, within Bexar County. It covers approximately 11.18 square miles and serves a population of 37,122 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 210.

About ZIP code 78218

The housing stock consists of a mix of housing types. Most homes were built in the 1960s, giving the area an established character. Median home value is $165,400. Owner-occupancy sits near the national average at 48%.

Median household income is $52,151. Poverty affects 20% of residents, above the national average. SNAP benefit usage at 19% of households reflects economic stress in the area.

The dominant occupation class is service, with professional and management as the leading industry. The average commute of 22 minutes is near the national average.

College attainment at 17% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of diabetes (16%) compared to national benchmarks. 21% of residents lack health insurance, above the national average.

Overall, ZIP code 78218 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, and elevated reliance on food assistance.

37,122

population

11.18

sq mi land

Standard

ZIP type

Central (CT)

timezone

78218 ZIP code map

Cities in ZIP code 78218

Below are the cities the US Postal Service accepts for ZIP code 78218. Using any city not on this list may result in mail delivery delays.

City	Status
San Antonio	Acceptable
San Antonio	Preferred

Nearby ZIP codes

78239 San Antonio (2.7 mi) 78219 San Antonio (2.9 mi) 78244 San Antonio (3 mi) 78284 San Antonio (3.1 mi) 78234 Jbsa Ft Sam Houston (3.4 mi) 78209 San Antonio (3.8 mi) 78217 San Antonio (4.7 mi) 78220 San Antonio (4.9 mi) 78233 San Antonio (5 mi) 78208 San Antonio (5.1 mi) 78212 San Antonio (5.8 mi) 78247 San Antonio (5.9 mi)

Demographics updated 06/2026

Population
Total population	37,122
Population density	3,320 / sq mi
State FIPS	48
County FIPS	029

Geography
Land area	11.18 sq mi
Water area	0.02 sq mi
Latitude	29.4886
Longitude	-98.3944
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	57.9%	43.3%	39.5%
$50k – $100k	28.0%	31.4%	30.1%
$100k – $200k	12.2%	19.9%	22.6%
Over $200k	1.9%	5.4%	7.8%

Demographics & statistics

37,122

Population

3,320

People per sq mi

36.1

Median age

$52,151

Median household income

$26,845

Per capita income

$165,400

Median home value

$1,132

Median monthly rent

47.7%

Home ownership

20.2%

Poverty rate

5.2%

Unemployment

7,627

Housing units

17.1%

Bachelor's or higher

Age distribution

Male Female

1,390

Under 5

1,435

1,282

5–9

1,323

1,060

10–14

1,094

876

15–19

905

1,210

20–24

1,249

3,025

25–34

3,121

2,385

35–44

2,461

2,084

45–54

2,151

1,240

55–59

1,279

1,057

60–64

1,091

1,640

65–74

1,693

673

75–84

694

346

85+

358

← Male

Female →

Age summary

Group	Count	%
Under 18	8,655	23.3%
18 and over	28,467	76.7%
65 and over	5,404	14.6%
Median age	36.1 years

Race & ethnicity

White 37%

Hispanic or Latino 22.9%

Two or more races 15.7%

Black or African American 11.8%

Other race 8.8%

Asian 2.7%

American Indian / Alaska Native 1%

Group	Count	%
White	17,818	37%
Hispanic or Latino	11,045	22.9%
Two or more races	7,575	15.7%
Black or African American	5,688	11.8%
Other race	4,261	8.8%
Asian	1,320	2.7%
American Indian / Alaska Native	460	1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	57.9%	43.3%	39.5%
$50k – $100k	28.0%	31.4%	30.1%
$100k – $200k	12.2%	19.9%	22.6%
Over $200k	1.9%	5.4%	7.8%

Under $10k 10.4%

$10k–$15k 5.7%

$15k–$25k 8.5%

$25k–$35k 10.6%

$35k–$50k 12.5%

$50k–$75k 21.7%

$75k–$100k 11.5%

$100k–$150k 10.6%

$150k–$200k 5.0%

$200k+ 3.3%

Range	% of households
Under $10k	10.4%
$10k–$15k	5.7%
$15k–$25k	8.5%
$25k–$35k	10.6%
$35k–$50k	12.5%
$50k–$75k	21.7%
$75k–$100k	11.5%
$100k–$150k	10.6%
$150k–$200k	5.0%
$200k+	3.3%
Median income	$52,151

Housing

Home values

Under $50k 7.9%

$50k–$100k 10.7%

$100k–$150k 22.6%

$150k–$200k 27.3%

$200k–$300k 22.2%

$300k–$500k 5.3%

$500k–$1M 4.0%

Housing overview

Metric	Value
Median home value	$165,400
Median rent / month	$1,132
Owner occupied	47.7%
Renter occupied	52.3%
Vacant	6.1%
Single-family detached	57.3%
Large apartment buildings	8.2%
Mobile homes	3.5%
Median rooms	5.1
Avg household size (owned)	2.95

Year built

Era	%
2020 or later	1.3%
2010–2019	8.9%
2000–2009	11.9%
1990–1999	8.4%
1980–1989	14.2%
1970–1979	14.6%
1960–1969	23.7%
1950–1959	15.9%
1940–1949	0.8%
1939 or earlier	0.2%

Bedrooms

Size	% of units
No bedroom (studio)	3.7%
1 bedroom	18.0%
2 bedrooms	19.7%
3 bedrooms	43.4%
4 bedrooms	14.6%
5+ bedrooms	0.6%

Vehicles per household

Vehicles	% of households
No vehicle	9.2%
1 vehicle	44.3%
2 vehicles	31.5%
3 or more	15.0%

Heating fuel

Fuel type	%
Utility gas	34.4%
Electricity	64.5%
Propane / LP gas	0.5%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	5,338	37.9%
Cohabiting couple	914	6.5%
Male householder, no spouse	3,040	21.6%
Female householder, no spouse	4,805	34.1%
Households with children under 18	3,979	28.2%
Households with seniors (65+)	4,050	28.7%
Average household size	2.60

Marital status

Status	Male	Female
Never married	42.4%	30.2%
Married	42.3%	38.8%
Separated	4.1%	3.8%
Widowed	2.8%	12.7%
Divorced	8.5%	14.5%

Education

Less than 9th grade 10.6%

Some HS, no diploma 8.8%

HS graduate 31.5%

Some college, no degree 24.5%

Associate's degree 7.5%

Bachelor's degree 11.3%

Graduate / professional 5.8%

Metric	%
HS diploma or higher	80.7%
Bachelor's or higher	17.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	589	7.0%
Kindergarten	561	6.7%
Elementary school	3,664	43.6%
High school	1,440	17.2%
College / grad school	2,141	25.5%

Employment

Industry of employment

Professional & management 17.5%

Education & healthcare 17.2%

Retail trade 13.8%

Arts, food & hospitality 11.8%

Construction 9.6%

Transportation & utilities 6.9%

Other services 6.2%

Manufacturing 5.4%

Finance & real estate 5.3%

Public administration 2.2%

Wholesale trade 2.1%

Information 1.6%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	23.6%
Service	27.4%
Sales & office	22.4%
Natural resources & construction	11.5%
Production & transportation	15.0%

Employment type

Type	%
Private sector	82.3%
Government	9.5%
Self-employed	8.1%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	74.4%
Carpool	10.3%
Public transit	5.1%
Walk	0.5%
Work from home	7.9%
Other means	1.8%
Avg commute (minutes)	22.4

Poverty

All people 20.2%

Under 18 years 27.4%

18 and over 18.0%

Married-couple families 10.5%

Female-led households 25.8%

Income support

Source	% of households
Social Security	30.0%
Retirement income	20.4%
Supplemental Security	9.4%
Cash public assistance	5.0%
Food stamps / SNAP	18.9%

Health indicators

Condition	%
Obesity	42.8%
High blood pressure	38.8%
High cholesterol	34.0%
Diabetes	15.5%
Heart disease	7.3%
Stroke	3.7%
Asthma	10.0%
Arthritis	23.8%
Kidney disease	3.6%
Pulmonary disease	7.4%
Cancer	5.5%

Behavior / access	%
Smoking	18.7%
Binge drinking	15.7%
No physical activity	29.4%
Less than 7 hrs sleep	38.6%
Depression	22.1%
Fair or poor health	24.1%
Poor mental health	16.8%
Poor physical health	13.5%
No health insurance	35.0%
Visited doctor (checkup)	73.0%
Visited dentist	47.4%
Cholesterol screening	87.4%
Teeth loss	19.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	2,772	9.9%

Disability	%
Any disability	15.2%
Under 18	8.0%
18–64 years	13.2%
65 and over	36.5%

Health insurance coverage

Type	%
Private insurance	49.0%
Public insurance	40.9%
No insurance	20.8%
Uninsured under 19	13.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	34,297	92.4%
Spanish	5,273	15.4%
Other Indo-European	4,377	12.8%
Asian & Pacific Islander	54	0.2%
Other languages	687	2.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	30,903	83.2%
Born in same state	29,189	78.6%
Born in different state	19,460	52.4%
Foreign born	1,714	4.6%
Naturalized citizen	6,219	16.8%
Not a US citizen	2,754	44.3%

Ancestry

Ancestry	Count	%
French	1,937	5.2%
Italian	1,534	4.1%
Arab	872	2.3%
Polish	203	0.5%

Ancestry	Count	%
English	42	0.1%
Irish	19	0.1%
German	8	0%

Technology access

Metric	% of households
Computer access	38.0%
Internet access	92.3%

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

Frequently asked questions about ZIP code 78218

What city is ZIP code 78218 in?

ZIP code 78218 is primarily assigned to San Antonio, Texas.

What county is ZIP code 78218 in?

ZIP code 78218 falls within Bexar County, Texas.

What is the poverty rate in ZIP code 78218?

20% of residents in ZIP code 78218 live below the poverty line, above the national average.

Does ZIP code 78218 have a large veteran population?

10% of civilians in ZIP code 78218 are veterans, above the national average of ~7%.

What is the typical home value in ZIP code 78218?

The median home value in ZIP code 78218 is $165,400.

What is the population of ZIP code 78218?

ZIP code 78218 has an estimated population of 37,122 residents, with a density of 3,322 people per square mile.

What timezone is ZIP code 78218 in?

ZIP code 78218 observes the CST timezone.