Liberty County, Texas
13 ZIP codes · Avg score 77/100 · Grade B · Updated 2026-06-03
Liberty County — 13 ZIP codes, above-average safety grade.
How Liberty County Compares
How Liberty County Compares
Liberty County scores 5 points below the Texas state average (82/100) and 9 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Liberty County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.5 (asthma 10.5%, diabetes 13.3%)
Estimated additional annual cost per homeowner: $2,521, driven primarily by flood
Infrastructure: 0.277% avg pipe failure probability
47.4% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Liberty County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 7 violations. Past 5 years: 16 total (16 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
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $2,521
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
38,207 housing units in Liberty 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 Liberty County
Remediation costs are relatively manageable for most homeowners in Liberty 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 Liberty 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 Liberty County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Grand San Jacinto Water System | 6,174 | 46 |
| 2 | Camino Real | 5,160 | 46 |
| 3 | South Cleveland Water Supply Corporation | 3,000 | 27 |
| 4 | City of Splendora | 9,612 | 27 |
| 5 | Patton Village West Water System | 1,457 | 21 |
30 total water systems serve Liberty County.
All ZIP Codes in Liberty County
13 ZIP codes tracked in Liberty County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 77538 | Devers | 90 | A | 0 | $152K |
| 2 | 77533 | Daisetta | 87 | A | 0 | $107K |
| 3 | 77561 | Hardin | 85 | A | 0 | — |
| 4 | 77582 | Raywood | 82 | B | 0 | — |
| 5 | 77353 | Magnolia | 81 | B | 19 | — |
| 6 | 77575 | Liberty | 80 | B | 0 | $161K |
| 7 | 77327 | Cleveland | 76 | B | 6 | $144K |
| 8 | 77372 | Splendora | 76 | B | 21 (2 health) | $218K |
| 9 | 77564 | Hull | 75 | B | 4 | $120K |
| 10 | 77519 | Batson | 73 | B | 0 | — |
| 11 | 77535 | Dayton | 70 | B | 7 | $217K |
| 12 | 77597 | Wallisville | 65 | C | 0 | $371K |
| 13 | 77560 | Hankamer | 60 | C | 0 | $266K |
Recommended Buyer Guides for Liberty County
Editorial methodology pairs each documented risk in this county with the buyer category that addresses it, drawing on water-quality detections, housing-stock lead exposure, EPA Radon Zone designation, and FEMA flood and wildfire ratings. NSF-certified options surface where applicable, and products that match the specific contaminant take priority.
- 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 Liberty County, Texas
Overview
Liberty County in Texas covers 13 ZIP codes with an average Home Safety Score of B (77/100).
5 of 13 ZIP codes have recorded EPA violations. 2 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.