Bexar County, Texas
96 ZIP codes · Avg score 88/100 · Grade A · Updated
ZipCheckup grade for Bexar County: A.
No federal data flags a major home-safety concern for this ZIP.
Bexar County's tap water quality puts it in the upper tier nationally; the 96 ZIP codes here record few health-based violations.
How Bexar County Compares
How Bexar County Compares
Bexar County scores 5 points above the Texas state average (83/100) and 15 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Bexar County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.8 (asthma 9%, diabetes 13.9%)
Estimated additional annual cost per homeowner: $1,515, driven primarily by flood
45.6% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Bexar County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 76 violations. Past 5 years: 202 total (202 health-based). Health-based violations are declining versus the prior 2-year window.
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,515
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
804,149 housing units in Bexar County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Bexar County
Remediation costs are relatively manageable for most homeowners in Bexar County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Bexar County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Bexar County
8 community water systems serving Bexar County.
- B
- B
- A
- A
- A
- B
Show all 8 water systems
- A
- A
45 total water systems serve Bexar County.
Systems with the most violations in Bexar County
5 water systems with recorded EPA violations.
- B
- B
- B
- B
- B
All ZIP Codes in Bexar County
96 ZIP codes tracked in Bexar County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 78201 | San Antonio | 92 | A | 0 | $187K |
| 2 | 78202 | San Antonio | 92 | A | 0 | $224K |
| 3 | 78203 | San Antonio | 92 | A | 0 | $140K |
| 4 | 78204 | San Antonio | 92 | A | 0 | $142K |
| 5 | 78205 | San Antonio | 92 | A | 0 | $470K |
| 6 | 78207 | San Antonio | 92 | A | 0 | $93K |
| 7 | 78208 | San Antonio | 92 | A | 0 | $125K |
| 8 | 78210 | San Antonio | 92 | A | 0 | $173K |
| 9 | 78211 | San Antonio | 92 | A | 0 | $110K |
| 10 | 78212 | San Antonio | 92 | A | 0 | $299K |
| 11 | 78214 | San Antonio | 92 | A | 0 | $122K |
| 12 | 78215 | San Antonio | 92 | A | 0 | $486K |
| 13 | 78216 | San Antonio | 92 | A | 0 | $282K |
| 14 | 78217 | San Antonio | 92 | A | 0 | $216K |
| 15 | 78220 | San Antonio | 92 | A | 0 | $125K |
| 16 | 78221 | San Antonio | 92 | A | 0 | $158K |
| 17 | 78222 | San Antonio | 92 | A | 0 | $188K |
| 18 | 78225 | San Antonio | 92 | A | 0 | $111K |
| 19 | 78226 | San Antonio | 92 | A | 0 | $109K |
| 20 | 78227 | San Antonio | 92 | A | 0 | $151K |
| 21 | 78228 | San Antonio | 92 | A | 0 | $165K |
| 22 | 78229 | San Antonio | 92 | A | 0 | $206K |
| 23 | 78232 | San Antonio | 92 | A | 0 | $345K |
| 24 | 78235 | San Antonio | 92 | A | 0 | — |
| 25 | 78237 | San Antonio | 92 | A | 0 | $103K |
| 26 | 78242 | San Antonio | 92 | A | 0 | $129K |
| 27 | 78247 | San Antonio | 92 | A | 0 | $256K |
| 28 | 78248 | San Antonio | 92 | A | 0 | $460K |
| 29 | 78251 | San Antonio | 92 | A | 0 | $244K |
| 30 | 78254 | San Antonio | 92 | A | 0 | $299K |
| 31 | 78256 | San Antonio | 92 | A | 0 | $494K |
| 32 | 78257 | San Antonio | 92 | A | 0 | $542K |
| 33 | 78258 | San Antonio | 92 | A | 0 | $447K |
| 34 | 78259 | San Antonio | 92 | A | 0 | $371K |
| 35 | 78260 | San Antonio | 92 | A | 0 | $471K |
| 36 | 78261 | San Antonio | 92 | A | 0 | $409K |
| 37 | 78218 | San Antonio | 91 | A | 1 | $184K |
| 38 | 78236 | Lackland A F B | 91 | A | 1 | — |
| 39 | 78239 | San Antonio | 91 | A | 1 | $216K |
| 40 | 78015 | Boerne | 90 | A | 3 (3 health) | $483K |
| 41 | 78152 | Saint Hedwig | 90 | A | 5 | $293K |
| 42 | 78234 | San Antonio | 90 | A | 3 (1 health) | — |
| 43 | 78263 | San Antonio | 90 | A | 5 | $313K |
| 44 | 78023 | Helotes | 89 | A | 7 (1 health) | $394K |
| 45 | 78148 | Universal City | 89 | A | 5 | $249K |
| 46 | 78233 | San Antonio | 89 | A | 5 | $203K |
| 47 | 78244 | San Antonio | 89 | A | 8 | $195K |
| 48 | 78255 | San Antonio | 89 | A | 8 (1 health) | $491K |
| 49 | 78209 | San Antonio | 88 | A | 8 (2 health) | $498K |
| 50 | 78213 | San Antonio | 88 | A | 8 (4 health) | $200K |
| 51 | 78219 | San Antonio | 88 | A | 11 (1 health) | $155K |
| 52 | 78230 | San Antonio | 88 | A | 8 (4 health) | $355K |
| 53 | 78231 | San Antonio | 88 | A | 8 (4 health) | $382K |
| 54 | 78109 | Converse | 86 | A | 19 | $241K |
| 55 | 78223 | San Antonio | 84 | B | 10 | $157K |
| 56 | 78253 | San Antonio | 83 | B | 10 (1 health) | $335K |
| 57 | 78249 | San Antonio | 82 | B | 24 (5 health) | $284K |
| 58 | 78238 | San Antonio | 77 | B | 43 | $191K |
| 59 | 78240 | San Antonio | 77 | B | 43 | $245K |
| 60 | 78250 | San Antonio | 77 | B | 43 | $222K |
| 61 | 78073 | Von Ormy | 76 | B | 31 (12 health) | $140K |
| 62 | 78224 | San Antonio | 76 | B | 30 (12 health) | $139K |
| 63 | 78252 | San Antonio | 76 | B | 30 (12 health) | $242K |
| 64 | 78264 | San Antonio | 76 | B | 31 (12 health) | $134K |
| 65 | 78002 | Atascosa | 75 | B | 51 (14 health) | $171K |
| 66 | 78069 | Somerset | 75 | B | 52 (14 health) | $107K |
| 67 | 78108 | Cibolo | 75 | B | 84 (2 health) | $307K |
| 68 | 78112 | Elmendorf | 75 | B | 334 (1 health) | $120K |
| 69 | 78245 | San Antonio | 75 | B | 55 (13 health) | $242K |
| 70 | 78054 | Macdona | — | — | — | |
| 71 | 78206 | San Antonio | — | — | — | |
| 72 | 78241 | San Antonio | — | — | — | |
| 73 | 78243 | San Antonio | — | — | 0 | — |
| 74 | 78246 | San Antonio | — | — | — | |
| 75 | 78265 | San Antonio | — | — | — | |
| 76 | 78268 | San Antonio | — | — | — | |
| 77 | 78269 | San Antonio | — | — | — | |
| 78 | 78270 | San Antonio | — | — | — | |
| 79 | 78278 | San Antonio | — | — | — | |
| 80 | 78279 | San Antonio | — | — | — | |
| 81 | 78280 | San Antonio | — | — | — | |
| 82 | 78283 | San Antonio | — | — | — | |
| 83 | 78284 | San Antonio | — | — | — | |
| 84 | 78285 | San Antonio | — | — | — | |
| 85 | 78286 | San Antonio | — | — | — | |
| 86 | 78287 | San Antonio | — | — | — | |
| 87 | 78288 | San Antonio | — | — | — | |
| 88 | 78289 | San Antonio | — | — | — | |
| 89 | 78292 | San Antonio | — | — | — | |
| 90 | 78293 | San Antonio | — | — | — | |
| 91 | 78294 | San Antonio | — | — | — | |
| 92 | 78295 | San Antonio | — | — | — | |
| 93 | 78296 | San Antonio | — | — | — | |
| 94 | 78297 | San Antonio | — | — | — | |
| 95 | 78298 | San Antonio | — | — | — | |
| 96 | 78299 | San Antonio | — | — | — |
Recommended Buyer Guides for Bexar County
Four sources - EPA, NSF, FEMA, CDC - drive the match.
- Best Water Filters for PFAS — PFAS detected in 4 ZIP codes
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Bexar County, Texas
Overview
Bexar County in Texas covers 96 tracked ZIP records with an average Home Safety Score of A (88/100) across 69 scored records.
33 of 70 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 30 health-based violations appear in the available health breakdown.
← Back to Texas Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.