Is San Antonio, TX Safe to Buy? Home Safety Score 89/100
Score 89/100 · Risk: low · Home Safety Grade A · Updated
San Antonio has low overall risk for homebuyers. Most safety indicators are within acceptable ranges.
Score data: EPA SDWIS, EPA PFAS monitoring, EPA Radon Zones, EPA Air Quality Index Last verified:
The remediation picture in San Antonio is relatively contained - estimated safety upgrade expenses sit well within typical property investment thresholds here.
What is a home safety score?
Home Safety Score model 4.0.0 combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, UCMR5 PFAS, EPA radon zone, and annual AQI with complete coverage. San Antonio scores 89/100 with a "low" risk level.
Remediation Cost Breakdown
Estimated costs to address safety issues for a typical home in San Antonio:
Cost ranges are estimates based on national averages. Actual costs vary by property. Get 3 quotes before proceeding.
Per-ZIP Home Safety Scores
Safety scores vary across San Antonio's 86 ZIP codes.
| ZIP Code | Score | Grade | |
|---|---|---|---|
| 78245 | 75 | B | View report → |
| 78224 | 76 | B | View report → |
| 78252 | 76 | B | View report → |
| 78264 | 76 | B | View report → |
| 78238 | 77 | B | View report → |
| 78240 | 77 | B | View report → |
| 78250 | 77 | B | View report → |
| 78249 | 82 | B | View report → |
| 78253 | 83 | B | View report → |
| 78223 | 84 | B | View report → |
| 78209 | 88 | A | View report → |
| 78213 | 88 | A | View report → |
| 78219 | 88 | A | View report → |
| 78230 | 88 | A | View report → |
| 78231 | 88 | A | View report → |
Home Safety Overview
San Antonio, Texas has low overall risk under the current model. The average Home Safety Score is 89/100 across 58 ZIP codes. The model covers water compliance, PFAS screening, radon, and annual air quality; property-level conditions still require inspection.
Safety Score Card
A composite view of San Antonio's key risk indicators:
| Risk Factor | Value | Assessment |
|---|---|---|
| Water Compliance | 337 EPA violations across 60 direct ZIP records | Recorded violations |
| Lead Risk | 0.0018 mg/L | Low risk |
| Flood Risk | 29% of claim-record ZIPs have A/V-family dominant recorded rated zones | Historical claims evidence |
| Radon | Zone 3 (Low) | Low risk |
| Air Quality | AQI 54 (Moderate) | Moderate risk |
Cost to Fix: Remediation Breakdown
Estimated costs to address safety issues for a typical home in San Antonio:
| Component | Estimated Cost |
|---|---|
| Filtration | $113 |
| Pfas | $500 |
| Total (low estimate) | $357 |
| Total (mid estimate) | $613 |
| Total (high estimate) | $1K |
Cost ranges are estimates based on national averages and local data. Actual costs vary by property condition, contractor, and scope of work. Get 3 quotes before proceeding.
Per-ZIP Home Safety Scores
Home safety varies across San Antonio's ZIP codes. Lower scores indicate more risk factors:
| ZIP Code | Safety Score | Grade |
|---|---|---|
| 78245 | 75 | B |
| 78224 | 76 | B |
| 78252 | 76 | B |
| 78264 | 76 | B |
| 78238 | 77 | B |
| 78240 | 77 | B |
| 78250 | 77 | B |
| 78249 | 82 | B |
| 78253 | 83 | B |
| 78223 | 84 | B |
| 78209 | 88 | A |
| 78213 | 88 | A |
| 78219 | 88 | A |
| 78230 | 88 | A |
| 78231 | 88 | A |
Safety scores range from 75 (78245) to 92 (78261) - a spread of 17 points.
San Antonio vs. Nearby Texas Cities
How San Antonio's overall risk compares to similar cities in Texas:
| City | Home Safety Grade | Lead ZIPs Over Limit | Flood Claims | Population |
|---|---|---|---|---|
| San Antonio | A | 0 | 2,159 | 1,860,461 |
| Dallas | B | 0 | 1,632 | 1,372,181 |
| Austin | B | 0 | 3,934 | 1,157,348 |
| Fort Worth | B | 0 | 1,316 | 982,017 |
Homebuyer Safety Checklist for San Antonio
Before purchasing a home in San Antonio, Texas, complete these checks:
Water Quality
- Request the latest Consumer Confidence Report (CCR) from the water utility
- Test tap water for lead, bacteria, and nitrates ($20-$50 for DIY kit)
Radon
- Conduct a radon test ($15-$30 for short-term kit, $150-$300 for professional)
Flood Risk
- Check the property's FEMA flood zone at msc.fema.gov
- Ask about flood history and past insurance claims
- Review the claims-only zone evidence: 29% of ZIPs with NFIP claim records have A/V-family dominant recorded rated zones. This does not replace an address-level FEMA map check.
Lead Paint & Pipes
- For homes built before 1978: request lead paint disclosure
- For homes built before 1986: inspect plumbing for lead solder and pipes
- 49% of San Antonio homes built before 1986 - pipe inspection recommended
General
- Check for carbon monoxide detectors on every level
- Inspect for visible mold, water stains, or musty odors
- Verify the home's connection to a regulated public water system
Data Sources
- Water quality: EPA SDWIS
- Lead: EPA Lead and Copper Rule
- Flood: FEMA NFIP
- Radon: EPA Radon Zones
- Air quality: EPA AirNow
- Home values: U.S. Census Bureau ACS B25077
- Remediation costs: National cost model (EPA, Census, FEMA data)
Source reporting periods vary. See each cited source for its publication schedule.
Water Quality Map: San Antonio, TX
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Check your specific ZIP code
City averages can hide neighborhood-level risks. Enter your ZIP for a personalized home safety score.
Check Your Home Safety Score