Postal Codes

78218 ZIP Code

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ZIP code 78218 covers San Antonio, Texas, with a population of about 38,291 and a median household income of $56,833.

Population
38,2913,426 per square mile
Median age
371.7 points below the US average
Median household income
$56,83326% below the Texas median
Poverty rate
19.1%6.7 points above the US average
Typical home value
$195,392up 0.2% in five years
Median rent
$1,16813% below the Texas median
Degree or higher
19.7%15.3 points below the US average
Homeownership
49.5%15.5 points below the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
898

Where 78218 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

Population38,291
Median age37
Family households59.1%
Born outside the US17.8%
Speaks a language other than English at home40.2%
White (non-Hispanic)24.9%
Black (non-Hispanic)14.2%
Asian (non-Hispanic)3.4%
Hispanic or Latino52.9%
Veterans10.2%
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$56,833
Income per person$30,272
Poverty rate19.1%
Households on SNAP or cash assistance17.6%

Household income distribution

Under $10k8.3%
$10–15k5.9%
$15–20k3.3%
$20–25k2.4%
$25–30k7.1%
$30–35k6.8%
$35–40k3.2%
$40–45k2.4%
$45–50k1.9%
$50–60k12.4%
$60–75k10.8%
$75–100k12.3%
$100–125k8.1%
$125–150k4.6%
$150–200k5.8%
$200k or more4.7%

Income as declared to the IRS

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

Tax returns filed16,700
Mean adjusted gross income$53,187
Returns declaring $200,000 or more2%
Returns, under $25k36.3%
Returns, $25k–$50k32.1%
Returns, $50k–$75k15.2%
Returns, $75k–$100k7.1%
Returns, $100k–$200k7.2%
Returns, $200k or more2.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$183,900
Median gross rent$1,168
Rent as a share of household income33.6%
Owner-occupied49.5%
Vacant homes4.6%
Median year built1977

What the homes are

Detached house56.1%
Attached house2%
2 to 4 units12%
5 to 19 units18%
20 or more units6.9%
Mobile home4.8%
Boat, RV or van0.2%
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$195,392as of 2026-07
Typical home value, 1 yeardown 4.3%
Typical home value, 5 yearsup 0.2%
Typical home value, 10 yearsup 54.6%
Typical asking rent$1,391as of 2026-07
Typical asking rent, 1 yeardown 3.8%
Typical asking rent, 5 yearsup 15%
Typical asking rent, 10 yearsup 46%
Typical home value since 2000
200020132026$226,722$72,573

$73,383 in 2000 to $195,392 in 2026.

Typical asking rent
201620212026$1,446$953

$953 in 2016 to $1,391 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate5.1%
Bachelor's degree or higher19.7%
High school diploma or higher81.6%
Works from home7.7%
Drives to work alone76.5%
Takes public transport5.1%
Commutes 45 minutes or more9.4%
Health

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

Obesity36.1% 2.7 pts above the national average of 33.4%
Diagnosed diabetes16.2% 4.2 pts above the national average of 12%
Currently smokes15.1% 1.9 pts above the national average of 13.2%
High blood pressure37.3% 3.2 pts above the national average of 34.1%
Fair or poor general health27.5% 7.2 pts above the national average of 20.3%
No health insurance (18–64)24.9% 13.6 pts above the national average of 11.3%
Depression22.8% 0.9 pts above the national average of 21.9%
No leisure-time physical activity35.8% 10.4 pts above the national average of 25.4%
Arthritis24.7% same as the national average of 25.1%
Binge drinking14.9% 1.1 pts below the national average of 16%
Taking blood pressure medication74.4% same as the national average of 74.7%
Cancer (non-skin)5.7% 2 pts below the national average of 7.7%
Current asthma9.8% 0.6 pts below the national average of 10.4%
Coronary heart disease6.5% same as the national average of 6.2%
Routine check-up in past year72.6% 4.1 pts below the national average of 76.7%
Cholesterol screening82.5% 3.4 pts below the national average of 85.9%
Cognitive disability18.1% 3.3 pts above the national average of 14.8%
Colorectal screening58.6% 5.7 pts below the national average of 64.3%
COPD6.8% same as the national average of 6.6%
Visited a dentist48.5% 12.8 pts below the national average of 61.3%
Any disability36.9% 6.2 pts above the national average of 30.7%
Hearing disability7.2% 0.5 pts above the national average of 6.7%
High cholesterol34.4% 1.8 pts below the national average of 36.2%
Independent living disability10.4% 2 pts above the national average of 8.4%
Mammography use71.1% 4.8 pts below the national average of 75.9%
Poor mental health (14+ days)18.3% 1.5 pts above the national average of 16.8%
Mobility disability18% 4 pts above the national average of 14%
Poor physical health (14+ days)16.1% 2.6 pts above the national average of 13.5%
Self-care disability5.4% 1.4 pts above the national average of 4%
Sleeps under 7 hours43.8% 7.4 pts above the national average of 36.4%
Stroke3.9% 0.5 pts above the national average of 3.4%
All natural teeth lost16.5% 3.5 pts above the national average of 13%
Vision disability8.4% 2.8 pts above the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments898
People employed31,217
Annual payroll$1,666,204,000
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 64.2% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 10 census tracts this ZIP code covers
Expected annual loss65 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.

Hail96Very High at its worst in this ZIP code
Tornado90.1Very High at its worst in this ZIP code
Heat wave81.5Relatively High at its worst in this ZIP code
River flooding73.2Relatively High at its worst in this ZIP code
Hurricane52.8Relatively Low at its worst in this ZIP code
Wildfire50.1Relatively Low at its worst in this ZIP code
Cold wave36.8Relatively Low at its worst in this ZIP code
Lightning32.2Relatively Low at its worst in this ZIP code
Winter weather32.1Relatively Low at its worst in this ZIP code
Drought31.7Very Low at its worst in this ZIP code
Landslide31.3Very Low at its worst in this ZIP code
Strong wind24.4Relatively Low at its worst in this ZIP code
Ice storm16.9Relatively Low at its worst in this ZIP code
Earthquake12.7Very 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$56,833$76,292$78,538
Income per person$30,272$39,446$43,289
Poverty rate19.1%13.8%12.4%
Median home value$183,900$260,400$303,400
Median gross rent$1,168$1,339$1,348
Homeownership49.5%62.6%65%
Bachelor's degree or higher19.7%33.1%35%
Unemployment rate5.1%5.1%5.2%
Works from home7.7%12.8%13.5%
Born outside the US17.8%17.2%13.9%
Median age3735.538.7
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 INCARNATE WORD, TX US7.4 km away
Rain in a year34 in
Snow in a year0 in

Average high and low by month

January63.2°F / 40.2°F2.21 in rain
February67.5°F / 43.8°F1.87 in rain
March73.8°F / 51°F2.38 in rain
April80.1°F / 57.4°F2.32 in rain
May85.7°F / 65.7°F4.38 in rain
June91.7°F / 72°F3.55 in rain
July94°F / 74.1°F2.41 in rain
August95.3°F / 74.1°F2.43 in rain
September89.5°F / 68.8°F3.9 in rain
October81.7°F / 59.2°F3.93 in rain
November71.4°F / 49°F2.48 in rain
December64.2°F / 41.4°F2.11 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 supermarket57% of this ZIP code's area
Far from a supermarket73% of this ZIP code's area
No vehicle and far from a supermarket72% 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 3 school districts, so the address decides which one, not the ZIP code.

North East Independent School District67.7% of this ZIP code's land area
Judson Independent School District31% of this ZIP code's land area
Fort Sam Houston Independent School District1.3% 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 vulnerability88more vulnerable than 88% of US census tracts
Socioeconomic status86more vulnerable than 86% of US census tracts
Household characteristics78more vulnerable than 78% of US census tracts
Racial and ethnic minority status82more vulnerable than 82% of US census tracts
Housing type and transport78more vulnerable than 78% of US census tracts
Walkability12 out of 20Above average
Nearby ZIP codes

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

78239 San Antonio, TX4.6 km away
78217 San Antonio, TX5 km away
78209 San Antonio, TX5.3 km away
78244 San Antonio, TX5.7 km away
78233 San Antonio, TX7.6 km away
78219 San Antonio, TX7.8 km away
78109 Converse, TX8.2 km away
78208 San Antonio, TX8.3 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 area11.18 sq mi
Water area0.02 sq mi
Population density3,426 people per sq mi
Latitude, longitude29.4969, -98.4032

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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