Comal County, Texas
10 ZIP codes · Home Safety Score unavailable · 0 of 10 tracked ZIP records scored · Updated
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: Comal County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.9 (asthma 9.4%, diabetes 11.2%)
Estimated additional annual cost per homeowner: $1,984, driven primarily by flood
21% of homes built before 1978 (lead paint era)
Violation History (2023–2025)
→ Stable trendEPA violation counts by year across Comal County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 26 violations. Past 5 years: 43 total (43 health-based).
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: $1,984
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
81,105 housing units in Comal 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 Comal County
Remediation costs are relatively manageable for most homeowners in Comal 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 Comal County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Comal County
8 community water systems serving Comal County.
Show all 8 water systems
21 total water systems serve Comal County.
Systems with the most violations in Comal County
5 water systems with recorded EPA violations.
All ZIP Codes in Comal County
10 ZIP codes tracked in Comal County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 78070 | Spring Branch | — | — | 29 (8 health) | $470K |
| 2 | 78130 | New Braunfels | — | — | 13 (3 health) | $296K |
| 3 | 78131 | New Braunfels | — | — | — | |
| 4 | 78132 | New Braunfels | — | — | 191 (63 health) | $571K |
| 5 | 78133 | Canyon Lake | — | — | 41 (11 health) | $300K |
| 6 | 78135 | New Braunfels | — | — | — | |
| 7 | 78163 | Bulverde | — | — | 31 (11 health) | $431K |
| 8 | 78266 | San Antonio | — | — | 169 (58 health) | $553K |
| 9 | 78291 | San Antonio | — | — | — | |
| 10 | 78623 | Fischer | — | — | 20 (5 health) | $564K |
Recommended Buyer Guides for Comal County
Eight risk categories drive the selection - PFAS exceedance, lead above EPA action level, pre-1978 housing share, EPA Radon Zone 1, flood-top-risk, wildfire-top-risk, multi-contaminant load, and a baseline fallback - and each category maps to a specific buyer-guide track that surfaces when the county data hits its threshold for that hazard signal.
- 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 Comal County, Texas
Overview
Comal County in Texas covers 10 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.
7 of 7 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 78 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.