Medina County, Texas
8 ZIP codes · Avg score 88/100 · Grade A · Updated 2026-06-03
Across Medina County's 8 ZIP codes, EPA compliance data shows above-average performance — violation rates are minimal, none of the county's systems have triggered health-based MCL exceedances in recent cycles, and the county's scores have stayed above the national baseline across every recent reporting period.
How Medina County Compares
How Medina County Compares
Medina County scores 6 points above the Texas state average (82/100) and 20 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Medina County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.1 (asthma 9.1%, diabetes 14.5%)
Estimated additional annual cost per homeowner: $1,418, driven primarily by flood
Infrastructure: 0.266% avg pipe failure probability
39.5% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Medina County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 10 violations. Past 5 years: 21 total (21 health-based). Health-based violations are rising versus the prior 2-year window — worth closer monitoring.
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
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,418
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
17,174 housing units in Medina 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 Medina County
Remediation costs are relatively manageable for most homeowners in Medina 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 Medina County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Medina County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | EAST MEDINA COUNTY SUD UNIT 1 | 6,153 | 9 |
| 2 | East Medina County Special Utility District Unit 2 | 2,505 | 9 |
| 3 | West Medina Water Supply Corporation | 1,683 | 9 |
| 4 | Benton City Water Supply Corporation | 20,940 | 6 |
| 5 | Yancey Water Supply Corporation | 12,186 | 6 |
23 total water systems serve Medina County.
All ZIP Codes in Medina County
8 ZIP codes tracked in Medina County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 78886 | Yancey | 95 | A | 0 | $156K |
| 2 | 78059 | Natalia | 94 | A | 3 (1 health) | $147K |
| 3 | 78016 | Devine | 91 | A | 3 | $174K |
| 4 | 78009 | Castroville | 90 | A | 0 | $335K |
| 5 | 78039 | La Coste | 90 | A | 0 | $123K |
| 6 | 78861 | Hondo | 89 | A | 3 (1 health) | $210K |
| 7 | 78850 | D Hanis | 85 | A | 6 (2 health) | $308K |
| 8 | 78005 | Bigfoot | 73 | B | 0 | $403K |
Recommended Buyer Guides for Medina County
Designed to find the guide that fits the county, not the other way around — the system reads EPA detections, FEMA hazard layers, and CDC lead-exposure markers, then outputs the categories that resolve those specific risks for households here, with NSF-certified products surfaced when the matching contaminant appears in the local monitoring data.
- 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 Medina County, Texas
Overview
Medina County in Texas covers 8 ZIP codes with an average Home Safety Score of A (88/100).
4 of 8 ZIP codes have recorded EPA violations. 4 health-based violations have been documented.
← Back to Texas water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.