Austin County, Texas
10 ZIP codes · Avg score 76/100 · Grade B · Updated 2026-06-03
Austin County's tap water quality puts it in the upper tier nationally; the 10 ZIP codes here record few health-based violations.
How Austin County Compares
How Austin County Compares
Austin County scores 6 points below the Texas state average (82/100) and 8 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Austin County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.6 (asthma 9.8%, diabetes 14.3%)
Estimated additional annual cost per homeowner: $1,767, driven primarily by flood
Infrastructure: 0.304% avg pipe failure probability
51.1% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
↑ Worsening trendEPA violation counts by year across Austin County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 6 violations. Past 5 years: 11 total (11 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: $1,767
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
13,300 housing units in Austin 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 Austin County
Remediation costs are relatively manageable for most homeowners in Austin 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 Austin 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 Austin County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | City of Bellville | 4,206 | 26 |
| 2 | Austin County Water Supply Corporation 4 | 681 | 26 |
| 3 | Austin County Water Supply Corporation 1 | 1,080 | 23 |
| 4 | Austin County Water Supply Corporation 2 | 576 | 23 |
| 5 | Austin County Water Supply Corporation 3 | 425 | 23 |
18 total water systems serve Austin County.
All ZIP Codes in Austin County
10 ZIP codes tracked in Austin County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 78944 | Industry | 99 | A | 0 | $374K |
| 2 | 73301 | Austin | 94 | A | 3 (1 health) | — |
| 3 | 77418 | Bellville | 87 | A | 23 (3 health) | $322K |
| 4 | 77474 | Sealy | 77 | B | 3 | $253K |
| 5 | 77485 | Wallis | 76 | B | 6 (1 health) | $198K |
| 6 | 77473 | San Felipe | 73 | B | 0 | — |
| 7 | 77337 | Hufsmith | 66 | C | 0 | — |
| 8 | 77452 | Kenney | 66 | C | 0 | — |
| 9 | 78931 | Bleiblerville | 66 | C | 0 | — |
| 10 | 77476 | Simonton | 55 | C | 0 | $394K |
Recommended Buyer Guides for Austin 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 Lead Paint Test Kits — 51.1% of homes built before 1978
- 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 Austin County, Texas
Overview
Austin County in Texas covers 10 ZIP codes with an average Home Safety Score of B (76/100).
4 of 10 ZIP codes have recorded EPA violations. 5 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.