Postal Codes

78242 ZIP Code

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ZIP code 78242 covers San Antonio, Texas, with a population of about 35,976 and a median household income of $48,979.

Population
35,9764,545 per square mile
Median age
299.7 points below the US average
Median household income
$48,97936% below the Texas median
Poverty rate
24.4%12 points above the US average
Typical home value
$155,058down 2% in five years
Median rent
$1,2308% below the Texas median
Degree or higher
9.6%25.4 points below the US average
Homeownership
52.8%12.2 points below the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
111

Where 78242 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

Population35,976
Median age29
Family households76.3%
Born outside the US19.7%
Speaks a language other than English at home56.6%
White (non-Hispanic)8.2%
Black (non-Hispanic)2.7%
Asian (non-Hispanic)0.5%
Hispanic or Latino85.9%
Veterans4%
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$48,979
Income per person$17,915
Poverty rate24.4%
Households on SNAP or cash assistance30.2%

Household income distribution

Under $10k7.7%
$10–15k7.3%
$15–20k3.2%
$20–25k5.4%
$25–30k8.5%
$30–35k5.0%
$35–40k4.2%
$40–45k5.1%
$45–50k4.9%
$50–60k9.9%
$60–75k12.6%
$75–100k12.5%
$100–125k5.9%
$125–150k3.9%
$150–200k2.7%
$200k or more1.1%

Income as declared to the IRS

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

Tax returns filed13,930
Mean adjusted gross income$36,252
Returns declaring $200,000 or more0.2%
Returns, under $25k41.9%
Returns, $25k–$50k35.0%
Returns, $50k–$75k14.1%
Returns, $75k–$100k5.4%
Returns, $100k–$200k3.4%
Returns, $200k or more0.2%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$128,500
Median gross rent$1,230
Rent as a share of household income36.5%
Owner-occupied52.8%
Vacant homes5.8%
Median year built1978

What the homes are

Detached house70.3%
Attached house2.3%
2 to 4 units6.2%
5 to 19 units10.3%
20 or more units3.9%
Mobile home7%
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$155,058as of 2026-07
Typical home value, 1 yeardown 4.3%
Typical home value, 5 yearsdown 2%
Typical home value, 10 yearsup 66.6%
Typical asking rent$1,329as of 2026-07
Typical asking rent, 1 yeardown 4.9%
Typical home value since 2000
200020132026$183,670$58,498

$59,952 in 2000 to $155,058 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate13.1%
Bachelor's degree or higher9.6%
High school diploma or higher68%
Works from home5.4%
Drives to work alone72.2%
Takes public transport1%
Commutes 45 minutes or more21.3%
Health

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

Obesity40.4% 7 pts above the national average of 33.4%
Diagnosed diabetes18.8% 6.8 pts above the national average of 12%
Currently smokes17.6% 4.4 pts above the national average of 13.2%
High blood pressure36.3% 2.2 pts above the national average of 34.1%
Fair or poor general health36.5% 16.2 pts above the national average of 20.3%
No health insurance (18–64)38.9% 27.6 pts above the national average of 11.3%
Depression23.4% 1.5 pts above the national average of 21.9%
No leisure-time physical activity44.8% 19.4 pts above the national average of 25.4%
Arthritis22.6% 2.5 pts below the national average of 25.1%
Binge drinking14.8% 1.2 pts below the national average of 16%
Taking blood pressure medication71.1% 3.6 pts below the national average of 74.7%
Cancer (non-skin)4.1% 3.6 pts below the national average of 7.7%
Current asthma9.5% 0.9 pts below the national average of 10.4%
Coronary heart disease6.8% 0.6 pts above the national average of 6.2%
Routine check-up in past year69.1% 7.6 pts below the national average of 76.7%
Cholesterol screening77.4% 8.5 pts below the national average of 85.9%
Cognitive disability22.8% 8 pts above the national average of 14.8%
Colorectal screening50.2% 14.1 pts below the national average of 64.3%
COPD7% same as the national average of 6.6%
Visited a dentist38.7% 22.6 pts below the national average of 61.3%
Any disability43.2% 12.5 pts above the national average of 30.7%
Hearing disability7.8% 1.1 pts above the national average of 6.7%
High cholesterol34.1% 2.1 pts below the national average of 36.2%
Independent living disability13% 4.6 pts above the national average of 8.4%
Mammography use67% 8.9 pts below the national average of 75.9%
Poor mental health (14+ days)20% 3.2 pts above the national average of 16.8%
Mobility disability21.3% 7.3 pts above the national average of 14%
Poor physical health (14+ days)19.2% 5.7 pts above the national average of 13.5%
Self-care disability7.4% 3.4 pts above the national average of 4%
Sleeps under 7 hours45.1% 8.7 pts above the national average of 36.4%
Stroke3.9% 0.5 pts above the national average of 3.4%
All natural teeth lost23.1% 10.1 pts above the national average of 13%
Vision disability12.5% 6.9 pts above the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments111
People employed1,325
Annual payroll$34,805,000
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 39.1% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 7 census tracts this ZIP code covers
Expected annual loss28.7 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.

Hail90.1Relatively High at its worst in this ZIP code
Tornado87.4Very High at its worst in this ZIP code
Heat wave84Relatively High at its worst in this ZIP code
Wildfire62.9Relatively Moderate at its worst in this ZIP code
Hurricane44.2Relatively Low at its worst in this ZIP code
Drought40.7Relatively Low at its worst in this ZIP code
Cold wave40.1Relatively Moderate at its worst in this ZIP code
River flooding38.8Relatively High at its worst in this ZIP code
Lightning33.7Relatively Moderate at its worst in this ZIP code
Winter weather31.5Relatively Low at its worst in this ZIP code
Landslide26.1Very Low at its worst in this ZIP code
Strong wind19.5Relatively Low at its worst in this ZIP code
Ice storm6.3Very Low at its worst in this ZIP code
Earthquake3.3Very 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$48,979$76,292$78,538
Income per person$17,915$39,446$43,289
Poverty rate24.4%13.8%12.4%
Median home value$128,500$260,400$303,400
Median gross rent$1,230$1,339$1,348
Homeownership52.8%62.6%65%
Bachelor's degree or higher9.6%33.1%35%
Unemployment rate13.1%5.1%5.2%
Works from home5.4%12.8%13.5%
Born outside the US19.7%17.2%13.9%
Median age2935.538.7
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 stationSAN ANTONIO KELLY AFB, TX US4.5 km away

Average high and low by month

January64.1°F / 41°F
February69.6°F / 43.9°F
March75.2°F / 51.9°F
April81.9°F / 58.5°F
May88.6°F / 66.3°F
June93°F / 71.8°F
July95.9°F / 73.8°F
August96.8°F / 74.2°F
September91.8°F / 69.6°F
October84.2°F / 60.4°F
November71.8°F / 48.9°F
December65.1°F / 41.2°F
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 supermarket55% of this ZIP code's area
Far from a supermarket55% of this ZIP code's area
No vehicle and far from a supermarket20% of this ZIP code's area
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%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Southwest Independent School District50.1% of this ZIP code's land area
South San Antonio Independent School District49.9% 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 vulnerability93more vulnerable than 93% of US census tracts
Socioeconomic status98more vulnerable than 98% of US census tracts
Household characteristics96more vulnerable than 96% of US census tracts
Racial and ethnic minority status95more vulnerable than 95% of US census tracts
Housing type and transport44more vulnerable than 44% of US census tracts
Walkability10.2 out of 20Below average
Nearby ZIP codes

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

78252 San Antonio, TX3.5 km away
78211 San Antonio, TX4.6 km away
78227 San Antonio, TX6.6 km away
78224 San Antonio, TX7.1 km away
78226 San Antonio, TX7.4 km away
78054 Macdona, TX8.3 km away
78237 San Antonio, TX9 km away
78225 San Antonio, TX9.3 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 area7.92 sq mi
Water area0.03 sq mi
Population density4,545 people per sq mi
Latitude, longitude29.3509, -98.6109

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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