Hardin County, Texas
10 ZIP codes · Avg score 77/100 · Grade B · Updated 2026-06-03
Recent water monitoring in Hardin County shows 10 ZIP codes with consistently safe results.
How Hardin County Compares
How Hardin County Compares
Hardin 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: Hardin 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 10.5%, diabetes 12.7%)
Estimated additional annual cost per homeowner: $2,862, driven primarily by flood
Infrastructure: 0.289% avg pipe failure probability
49.5% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Hardin 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 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: $2,862
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
25,442 housing units in Hardin 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 Hardin County
Remediation costs are relatively manageable for most homeowners in Hardin 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 Hardin 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 Hardin County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | TYLER COUNTY SUD | 5,872 | 38 |
| 2 | City of Silsbee | 10,026 | 32 |
| 3 | North Hardin Water Supply Corporation | 7,755 | 32 |
| 4 | Big Thicket Rv Park | 102 | 32 |
| 5 | Bullocks Mobile Home Park | 81 | 32 |
16 total water systems serve Hardin County.
All ZIP Codes in Hardin County
10 ZIP codes tracked in Hardin County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 77585 | Saratoga | 94 | A | 4 (1 health) | $204K |
| 2 | 77663 | Village Mills | 90 | A | 0 | $238K |
| 3 | 77625 | Kountze | 85 | A | 0 | $115K |
| 4 | 77664 | Warren | 81 | B | 6 | $154K |
| 5 | 77657 | Lumberton | 80 | B | 1 | $244K |
| 6 | 77350 | Leggett | 73 | B | 0 | $84K |
| 7 | 77656 | Silsbee | 68 | C | 32 (3 health) | $114K |
| 8 | 77659 | Sour Lake | 68 | C | 3 (1 health) | $234K |
| 9 | 77374 | Thicket | 66 | C | 0 | $157K |
| 10 | 77376 | Votaw | 66 | C | 0 | — |
Recommended Buyer Guides for Hardin County
Filtered against EPA monitoring data and CDC lead-exposure guidance, the guides below skip the generic catalog and connect directly to the contaminants and hazards on file here.
- 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 Hardin County, Texas
Overview
Hardin County in Texas covers 10 ZIP codes with an average Home Safety Score of B (77/100).
5 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.