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Area data

San Antonio, TX — ZIP 78234

Population: 7,149 (Census ACS)

2 schools serve the area (NCES). FEMA's National Risk Index rates the county's overall natural-hazard risk Relatively High, with hail, inlandflooding, tornado the top-rated hazards. Cost of living is 2.9% below the US average (BEA, metro/state-level).

Backed by 25+ public sourcesFEMA · U.S. Census · NOAA · Dept. of Education · EPA · and more

Home values & appreciation

House Price Index (state)
440.1 (-0.8% YoY)

Sources: home value index (ZIP-level) · FHFA House Price Index (state-level)

Rents

Studio fair-market rent
$1,620/mo
1BR fair-market rent
$1,770/mo
2BR fair-market rent
$2,140/mo
3BR fair-market rent
$2,750/mo
4BR fair-market rent
$3,200/mo

Sources: market rent index (ZIP-level) · HUD Fair Market Rents (metro/county-level, 40th-percentile regulatory reference)

Affordability

Cost of living index (Average)
97.1 (100 = US avg)
Electricity rate (state-level)
15.5¢/kWh
Natural gas rate (state-level)
$19.40/MCF
30-year mortgage rate (national)
6.66%
15-year mortgage rate (national)
6.00%

Sources: BEA Regional Price Parities (metro/state-level) · EIA energy rates (state-level) · Freddie Mac PMMS (national)

Schools

Total schools
2
Elementary schools
1
Middle schools
0
High schools
1
Schools include
ROBERT G COLE MIDDLE/HIGH SCHOOL, FT SAM HOUSTON EL

Source: NCES school directory, 2022-23 (school-address-based)

Natural hazards & flood risk

Overall hazard risk (county)
Relatively High
Top hazards (county)
hail, inlandFlooding, tornado, coldWave, heatWave
Notable hazard ratings (county)
coldWave: Relatively High · drought: Relatively Moderate · earthquake: Relatively Low · hail: Very High · heatWave: Relatively High · hurricane: Relatively Moderate
Wildfire risk to homes (county)
Higher than 64% of US counties
Buildings in wildfire direct-exposure zone
17.9%
Radon potential (county)
Low radon potential — EPA Zone 3 of 3
EPA Superfund (NPL) sites within 5 mi
None
Nearest Superfund site
R & H Oil Company (6.4 mi — proposed for listing)
EPA recommends radon testing for every home regardless of zone.

Sources: FEMA National Risk Index (county-level) · FEMA flood data (ZIP-level) · USDA Forest Service Wildfire Risk to Communities (county-level) · EPA radon zones + Superfund NPL

Climate (30-year normals)

Annual precipitation
28.0 in
USDA plant hardiness zone
9a (extreme annual low 20 to 25°F)

Sources: NOAA Climate Normals (30-year, nearest-station) · USDA Plant Hardiness Zone Map (2023)

Air quality

Air quality rating
Moderate
Median AQI (annual)
52
Days with Good air quality
174
Days with Moderate air quality
170
Days with Unhealthy air quality
2
Highest AQI recorded (year)
199

Source: EPA air quality data (nearest monitoring station, annual)

Amenities

National parks within ~60 mi
2
Nearest national park
San Antonio Missions National Historical Park (9 mi)
National parks include
San Antonio Missions National Historical Park, Lyndon B Johnson National Historical Park
Airports within 30 mi
38
Nearest airport
San Antonio International Airport (SAT) (7 mi)
Nearest major airport
San Antonio International Airport (SAT) (7 mi)
Hospitals nearby (~15 mi)
1
Hospitals include
Brooke Army Medical Center (FT Sam Houston)
EV charging stations (within 10 mi)
189
Solar radiation rating
Good (4.8 kWh/m²/day)

Sources: National Park Service · FAA airport data · CMS hospital data · DOE/NREL (proximity-based)

Housing stock

Median year housing built
1,971
Housing built before 1970
49.8%
Housing built 2000 or later
26.5%
Mean commute to work
8 min
Households with broadband internet
90.8%

Source: Census ACS 5-year estimates (ZIP-level)

Employment & development

Total county employment
773,806
Average weekly wage
$1,189
Top industries (by employment)
Health Care, Accommodation & Food, Administrative Services
Annual residential building permits (county)
5,429

Sources: BLS QCEW (county-level) · Census Building Permits (county-level)

Area data compiled from public government, academic, and industry research feeds. Data sources →

Common questions

What is typical rent in ZIP 78234?
2-bedroom fair-market rent: $2,140/month (HUD FMR — a 40th-percentile regulatory reference, not market-observed).
What is the natural-hazard risk in ZIP 78234?
Overall risk: Relatively High (FEMA NRI, county-level). Top hazards: hail, inlandFlooding, tornado, coldWave, heatWave.
What is the wildfire risk in ZIP 78234?
Risk to homes is higher than 64% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
What is the radon potential in ZIP 78234?
Low radon potential — EPA Zone 3 of 3, county-level. EPA recommends testing every home regardless of zone.
Are there Superfund sites near ZIP 78234?
No current or proposed National Priorities List sites within 5 miles (EPA).
How many schools serve ZIP 78234?
2 schools (1 elementary, 1 high) (NCES, 2022-23).
What is the air quality in ZIP 78234?
Moderate. Median AQI: 52. (EPA AQI).
What is the cost of living in ZIP 78234?
Regional Price Parity: 97.1 (100 = US average) (Average) (BEA RPP, metro/state-level).

Nearby ZIP codes

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Data last updated

Most recent source refresh: Sep 2026. See all data sources →

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