Postal Codes

78255 ZIP Code

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ZIP code 78255 covers San Antonio, Texas, with a population of about 18,107 and a median household income of $151,673.

Population
18,1071,009 per square mile
Median age
40.61.9 points above the US average
Median household income
$151,6732.0× the Texas median
Poverty rate
4.5%7.9 points below the US average
Typical home value
$549,796up 21.7% in five years
Median rent
$1,7721.3× the Texas median
Degree or higher
60.8%25.8 points above the US average
Homeownership
84.6%19.6 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
310

Where 78255 is

San Antonio, Texas — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population18,107
Median age40.6
Family households82.5%
Born outside the US13.8%
Speaks a language other than English at home30.3%
White (non-Hispanic)46.8%
Black (non-Hispanic)2.9%
Asian (non-Hispanic)10.2%
Hispanic or Latino36.8%
Veterans9.7%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$151,673
Income per person$65,486
Poverty rate4.5%
Households on SNAP or cash assistance1.8%

Household income distribution

Under $10k1.2%
$10–15k0.8%
$15–20k0.5%
$20–25k0.5%
$25–30k1.5%
$30–35k1.9%
$35–40k1.6%
$40–45k0.2%
$45–50k1.2%
$50–60k5.2%
$60–75k4.9%
$75–100k10.8%
$100–125k6.9%
$125–150k11.2%
$150–200k14.2%
$200k or more37.4%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed8,370
Mean adjusted gross income$188,850
Returns declaring $200,000 or more25%
Returns, under $25k19.6%
Returns, $25k–$50k12.7%
Returns, $50k–$75k10.4%
Returns, $75k–$100k8.2%
Returns, $100k–$200k24.1%
Returns, $200k or more25.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$490,600
Median gross rent$1,772
Rent as a share of household income27.3%
Owner-occupied84.6%
Vacant homes4.7%
Median year built2007

What the homes are

Detached house88.7%
Attached house1.5%
2 to 4 units0.1%
5 to 19 units3.8%
20 or more units4.6%
Mobile home1.2%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$549,796as of 2026-07
Typical home value, 1 yearup 0.3%
Typical home value, 5 yearsup 21.7%
Typical home value, 10 yearsup 58.7%
Typical asking rent$1,849as of 2026-07
Typical asking rent, 1 yeardown 0.9%
Typical home value since 2000
200020132026$555,733$230,914

$238,255 in 2000 to $549,796 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.2%
Bachelor's degree or higher60.8%
High school diploma or higher95.5%
Works from home22.7%
Drives to work alone63.2%
Takes public transport0.4%
Commutes 45 minutes or more14.3%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity28.3% 5.1 pts below the national average of 33.4%
Diagnosed diabetes10.8% 1.2 pts below the national average of 12%
Currently smokes8.3% 4.9 pts below the national average of 13.2%
High blood pressure31.2% 2.9 pts below the national average of 34.1%
Fair or poor general health14.2% 6.1 pts below the national average of 20.3%
No health insurance (18–64)10.6% 0.7 pts below the national average of 11.3%
Depression21.3% 0.6 pts below the national average of 21.9%
No leisure-time physical activity20.2% 5.2 pts below the national average of 25.4%
Arthritis22% 3.1 pts below the national average of 25.1%
Binge drinking17.3% 1.3 pts above the national average of 16%
Taking blood pressure medication74.5% same as the national average of 74.7%
Cancer (non-skin)7% 0.7 pts below the national average of 7.7%
Current asthma8.6% 1.8 pts below the national average of 10.4%
Coronary heart disease4.5% 1.7 pts below the national average of 6.2%
Routine check-up in past year74.9% 1.8 pts below the national average of 76.7%
Cholesterol screening89.1% 3.2 pts above the national average of 85.9%
Cognitive disability10.5% 4.3 pts below the national average of 14.8%
Colorectal screening66.3% 2 pts above the national average of 64.3%
COPD3.8% 2.8 pts below the national average of 6.6%
Visited a dentist69.7% 8.4 pts above the national average of 61.3%
Any disability23.2% 7.5 pts below the national average of 30.7%
Hearing disability5.2% 1.5 pts below the national average of 6.7%
High cholesterol33.8% 2.4 pts below the national average of 36.2%
Independent living disability5.2% 3.2 pts below the national average of 8.4%
Mammography use76.8% 0.9 pts above the national average of 75.9%
Poor mental health (14+ days)13.6% 3.2 pts below the national average of 16.8%
Mobility disability9.8% 4.2 pts below the national average of 14%
Poor physical health (14+ days)10.6% 2.9 pts below the national average of 13.5%
Self-care disability2.5% 1.5 pts below the national average of 4%
Sleeps under 7 hours36.3% same as the national average of 36.4%
Stroke2.4% 1 pts below the national average of 3.4%
All natural teeth lost4.8% 8.2 pts below the national average of 13%
Vision disability3.6% 2 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments310
People employed1,783
Annual payroll$87,105,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 78.5% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 5 census tracts this ZIP code covers
Expected annual loss85.9 out of 100
Community resilience20.6 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Hail98Very High at its worst in this ZIP code
Landslide92.4Relatively Moderate at its worst in this ZIP code
Tornado90.5Very High at its worst in this ZIP code
Wildfire89.5Relatively Moderate at its worst in this ZIP code
River flooding87.5Very High at its worst in this ZIP code
Heat wave82.7Relatively High at its worst in this ZIP code
Hurricane51.7Relatively Low at its worst in this ZIP code
Cold wave40.2Relatively Moderate at its worst in this ZIP code
Lightning35.7Relatively Moderate at its worst in this ZIP code
Winter weather34.8Relatively Low at its worst in this ZIP code
Drought27.7Very Low at its worst in this ZIP code
Strong wind25.5Relatively Low at its worst in this ZIP code
Ice storm15.4Very Low at its worst in this ZIP code
Earthquake2.8Very Low at its worst in this ZIP code
Compared with Texas and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPTexasUnited States
Median household income$151,673$76,292$78,538
Income per person$65,486$39,446$43,289
Poverty rate4.5%13.8%12.4%
Median home value$490,600$260,400$303,400
Median gross rent$1,772$1,339$1,348
Homeownership84.6%62.6%65%
Bachelor's degree or higher60.8%33.1%35%
Unemployment rate4.2%5.1%5.2%
Works from home22.7%12.8%13.5%
Born outside the US13.8%17.2%13.9%
Median age40.635.538.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationBOERNE, TX US15 km away
Rain in a year38 in
Snow in a year0 in

Average high and low by month

January61.5°F / 36.6°F2.28 in rain
February65.5°F / 40.5°F2.22 in rain
March72.1°F / 47.2°F2.79 in rain
April78.8°F / 53.8°F2.52 in rain
May84°F / 62.7°F5.28 in rain
June89.8°F / 69°F3.78 in rain
July92.5°F / 71°F2.83 in rain
August94.1°F / 70.5°F2.8 in rain
September88.5°F / 65.1°F3.9 in rain
October80.5°F / 55.6°F3.88 in rain
November70°F / 45.4°F2.92 in rain
December62.7°F / 38°F2.32 in rain, 0.1 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket30% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Northside Independent School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability30more vulnerable than 30% of US census tracts
Socioeconomic status22more vulnerable than 22% of US census tracts
Household characteristics45more vulnerable than 45% of US census tracts
Racial and ethnic minority status68more vulnerable than 68% of US census tracts
Housing type and transport33more vulnerable than 33% of US census tracts
Walkability6.6 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

78015 Boerne, TX7.3 km away
78257 San Antonio, TX7.5 km away
78023 Helotes, TX7.7 km away
78256 San Antonio, TX8.4 km away
78254 San Antonio, TX13.9 km away
78249 San Antonio, TX14.1 km away
78231 San Antonio, TX17.9 km away
78250 San Antonio, TX18.4 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Bexar County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area17.95 sq mi
Water area0.02 sq mi
Population density1,009 people per sq mi
Latitude, longitude29.6701, -98.6873

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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