Kerr County, Texas
8 ZIP codes · Avg score 79/100 · Grade B · Updated 2026-06-03
Kerr County's tap water quality puts it in the upper tier nationally; the 8 ZIP codes here record few health-based violations.
How Kerr County Compares
How Kerr County Compares
Kerr County scores 3 points below the Texas state average (82/100) and 11 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Kerr County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.1 (asthma 9.6%, diabetes 14.6%)
Estimated additional annual cost per homeowner: $2,321, driven primarily by flood
Infrastructure: 0.341% avg pipe failure probability, 13% of ZIPs at high risk
41.9% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
↑ Worsening trendEPA violation counts by year across Kerr County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 20 violations. Past 5 years: 35 total (35 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: $2,321
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
28,722 housing units in Kerr 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 Kerr County
Remediation costs are relatively manageable for most homeowners in Kerr 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 Kerr 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 Kerr County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | City of Kerrville | 23,489 | 95 |
| 2 | City of Boerne | 24,769 | 60 |
| 3 | Kendall West Utility | 4,062 | 60 |
| 4 | Kendall County Wcid 1 | 3,579 | 60 |
| 5 | Waring Knoll Subdivision | 54 | 60 |
21 total water systems serve Kerr County.
All ZIP Codes in Kerr County
8 ZIP codes tracked in Kerr County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 78029 | Kerrville | 91 | A | 7 (4 health) | — |
| 2 | 78025 | Ingram | 86 | A | 4 (1 health) | $257K |
| 3 | 78024 | Hunt | 84 | B | 9 (1 health) | $635K |
| 4 | 78010 | Center Point | 81 | B | 21 (3 health) | $274K |
| 5 | 78028 | Kerrville | 81 | B | 7 (4 health) | $281K |
| 6 | 78058 | Mountain Home | 73 | B | 0 | $254K |
| 7 | 78013 | Comfort | 71 | B | 60 (11 health) | $397K |
| 8 | 78631 | Harper | 66 | C | 0 | $339K |
Recommended Buyer Guides for Kerr County
Retailer arrangements don't shape what appears here — the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- 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 Kerr County, Texas
Overview
Kerr County in Texas covers 8 ZIP codes with an average Home Safety Score of B (79/100).
6 of 8 ZIP codes have recorded EPA violations. 24 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.