78255 ZIP Code — San Antonio, TX

Bexar County, Texas

ZIP code 78255 is located in San Antonio, Texas, within Bexar County. It covers approximately 17.95 square miles and serves a population of 18,149 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 830.

About ZIP code 78255

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $451,800. Owner-occupancy is high at 84%, well above the national average.

The gap between median ($149,188) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 4% is below the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.

Educational attainment is high — 60% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 78255 reflects a community defined by a highly educated population and high homeownership.

18,149

population

17.95

sq mi land

Standard

ZIP type

Central (CT)

timezone

78255 ZIP code map

Cities in ZIP code 78255

Below are the cities the US Postal Service accepts for ZIP code 78255. Using any city not on this list may result in mail delivery delays.

City	Status
San Antonio	Preferred

Nearby ZIP codes

78256 San Antonio (2 mi) 78023 Helotes (5.4 mi) 78249 San Antonio (5.4 mi) 78257 San Antonio (5.8 mi) 78254 San Antonio (6.5 mi) 78015 Boerne (6.7 mi) 78231 San Antonio (8.4 mi) 78240 San Antonio (8.7 mi) 78248 San Antonio (8.8 mi) 78230 San Antonio (8.9 mi) 78250 San Antonio (9.2 mi) 78258 San Antonio (9.6 mi)

Demographics updated 06/2026

Population
Total population	18,149
Population density	1,011 / sq mi
State FIPS	48
County FIPS	029

Geography
Land area	17.95 sq mi
Water area	0.02 sq mi
Latitude	29.6361
Longitude	-98.6619
Timezone	Central (CT)
Area code	830

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	16.9%	43.3%	39.5%
$50k – $100k	23.4%	31.4%	30.1%
$100k – $200k	37.5%	19.9%	22.6%
Over $200k	22.2%	5.4%	7.8%

Demographics & statistics

18,149

Population

1,011

People per sq mi

40.5

Median age

$149,188

Median household income

$62,587

Per capita income

$451,800

Median home value

$1,601

Median monthly rent

84.2%

Home ownership

4.2%

Poverty rate

3.1%

Unemployment

5,752

Housing units

60.3%

Bachelor's or higher

Age distribution

Male Female

550

Under 5

524

791

5–9

753

554

10–14

528

653

15–19

622

551

20–24

524

910

25–34

866

1,146

35–44

1,091

1,564

45–54

1,489

483

55–59

460

691

60–64

657

861

65–74

820

467

75–84

444

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	4,584	25.3%
18 and over	13,565	74.7%
65 and over	2,742	15.1%
Median age	40.5 years

Race & ethnicity

White 54.7%

Hispanic or Latino 16.5%

Two or more races 13.2%

Asian 7.9%

Other race 5.6%

Black or African American 2%

Group	Count	%
White	11,889	54.7%
Hispanic or Latino	3,588	16.5%
Two or more races	2,870	13.2%
Asian	1,725	7.9%
Other race	1,224	5.6%
Black or African American	438	2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	16.9%	43.3%	39.5%
$50k – $100k	23.4%	31.4%	30.1%
$100k – $200k	37.5%	19.9%	22.6%
Over $200k	22.2%	5.4%	7.8%

Under $10k 0.8%

$10k–$15k 1.4%

$15k–$25k 2.1%

$25k–$35k 3.7%

$35k–$50k 2.9%

$50k–$75k 10.1%

$75k–$100k 11.1%

$100k–$150k 18.0%

$150k–$200k 15.8%

$200k+ 34.1%

Range	% of households
Under $10k	0.8%
$10k–$15k	1.4%
$15k–$25k	2.1%
$25k–$35k	3.7%
$35k–$50k	2.9%
$50k–$75k	10.1%
$75k–$100k	11.1%
$100k–$150k	18.0%
$150k–$200k	15.8%
$200k+	34.1%
Median income	$149,188

Housing

Home values

Under $50k 1.1%

$50k–$100k 0.4%

$100k–$150k 0.5%

$150k–$200k 0.4%

$200k–$300k 12.8%

$300k–$500k 45.8%

$500k–$1M 35.6%

$1M+ 3.4%

Housing overview

Metric	Value
Median home value	$451,800
Median rent / month	$1,601
Owner occupied	84.2%
Renter occupied	15.8%
Vacant	6.0%
Single-family detached	88.1%
Large apartment buildings	4.3%
Mobile homes	1.2%
Median rooms	7.7
Avg household size (owned)	2.89

Year built

Era	%
2020 or later	0.0%
2010–2019	37.0%
2000–2009	38.8%
1990–1999	7.8%
1980–1989	7.1%
1970–1979	4.8%
1960–1969	3.9%
1950–1959	0.2%
1940–1949	0.0%
1939 or earlier	0.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	5.0%
2 bedrooms	5.2%
3 bedrooms	36.1%
4 bedrooms	41.1%
5+ bedrooms	12.4%

Vehicles per household

Vehicles	% of households
No vehicle	1.2%
1 vehicle	19.0%
2 vehicles	47.8%
3 or more	32.0%

Heating fuel

Fuel type	%
Utility gas	47.2%
Electricity	48.6%
Propane / LP gas	1.6%
Solar	0.2%
No fuel used	2.0%

Households & families

Household type	Count	%
Married-couple family	4,344	68.4%
Cohabiting couple	152	2.4%
Male householder, no spouse	910	14.3%
Female householder, no spouse	941	14.8%
Households with children under 18	2,322	36.6%
Households with seniors (65+)	2,007	31.6%
Average household size	2.86

Marital status

Status	Male	Female
Never married	30.2%	24.3%
Married	63.0%	61.1%
Separated	1.1%	0.0%
Widowed	3.1%	4.2%
Divorced	2.6%	10.3%

Education

Less than 9th grade 3.2%

Some HS, no diploma 1.8%

HS graduate 9.6%

Some college, no degree 15.2%

Associate's degree 9.9%

Bachelor's degree 33.7%

Graduate / professional 26.5%

Metric	%
HS diploma or higher	95.0%
Bachelor's or higher	60.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	256	4.8%
Kindergarten	480	9.1%
Elementary school	1,991	37.5%
High school	1,093	20.6%
College / grad school	1,483	28.0%

Employment

Industry of employment

Education & healthcare 26.7%

Finance & real estate 16.9%

Professional & management 15.0%

Retail trade 10.3%

Arts, food & hospitality 8.2%

Manufacturing 4.5%

Construction 3.6%

Other services 3.5%

Public administration 3.4%

Transportation & utilities 3.0%

Wholesale trade 2.4%

Information 1.3%

Agriculture & mining 1.2%

Occupation

Category	%
Management, business & arts	64.7%
Service	9.4%
Sales & office	16.5%
Natural resources & construction	5.4%
Production & transportation	3.9%

Employment type

Type	%
Private sector	78.6%
Government	12.0%
Self-employed	8.6%
Unpaid family workers	0.8%

Commute

Method	%
Drive alone	68.2%
Carpool	10.4%
Public transit	0.4%
Walk	1.0%
Work from home	19.9%
Other means	0.2%
Avg commute (minutes)	26.7

Poverty

All people 4.2%

Under 18 years 5.3%

18 and over 3.8%

Married-couple families 2.4%

Female-led households 3.5%

Income support

Source	% of households
Social Security	25.3%
Retirement income	24.4%
Supplemental Security	1.6%
Cash public assistance	0.2%
Food stamps / SNAP	1.6%

Health indicators

Condition	%
Obesity	33.6%
High blood pressure	29.4%
High cholesterol	32.0%
Diabetes	8.8%
Heart disease	4.4%
Stroke	1.8%
Asthma	8.0%
Arthritis	18.0%
Kidney disease	2.1%
Pulmonary disease	3.7%
Cancer	5.5%

Behavior / access	%
Smoking	10.6%
Binge drinking	19.3%
No physical activity	14.9%
Less than 7 hrs sleep	32.6%
Depression	20.1%
Fair or poor health	10.4%
Poor mental health	12.9%
Poor physical health	7.4%
No health insurance	18.1%
Visited doctor (checkup)	71.2%
Visited dentist	68.8%
Cholesterol screening	91.9%
Teeth loss	6.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,417	10.5%

Disability	%
Any disability	10.1%
Under 18	5.3%
18–64 years	6.1%
65 and over	33.9%

Health insurance coverage

Type	%
Private insurance	85.7%
Public insurance	19.4%
No insurance	7.8%
Uninsured under 19	4.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	17,075	94.1%
Spanish	1,120	6.6%
Other Indo-European	648	3.8%
Asian & Pacific Islander	240	1.4%
Other languages	232	1.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	15,423	85.0%
Born in same state	15,078	83.1%
Born in different state	10,111	55.7%
Foreign born	345	1.9%
Naturalized citizen	2,726	15.0%
Not a US citizen	2,052	75.3%

Ancestry

Ancestry	Count	%
French	2,051	11.3%
Italian	1,431	7.9%
Arab	811	4.5%
English	259	1.4%
German	162	0.9%

Ancestry	Count	%
Polish	128	0.7%
Irish	106	0.6%
Dutch	97	0.5%
Norwegian	35	0.2%

Technology access

Metric	% of households
Computer access	35.0%
Internet access	98.6%

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

Frequently asked questions about ZIP code 78255

What city is ZIP code 78255 in?

ZIP code 78255 is primarily assigned to San Antonio, Texas.

What county is ZIP code 78255 in?

ZIP code 78255 falls within Bexar County, Texas.

How educated is the population of ZIP code 78255?

60% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is ZIP code 78255 mostly owner-occupied?

84% of occupied units in ZIP code 78255 are owner-occupied, well above the national average.

Does ZIP code 78255 have a large veteran population?

11% of civilians in ZIP code 78255 are veterans, above the national average of ~7%.

What is the median household income in ZIP code 78255?

The median household income in ZIP code 78255 is $149,188, above the national median of ~$75,000.

What timezone is ZIP code 78255 in?

ZIP code 78255 observes the CST timezone.