Navarro County, Texas
12 ZIP codes · Avg score 85/100 · Grade A · Updated 2026-06-04
Navarro County maintains reliable drinking water quality across all 12 of its tracked ZIP codes.
How Navarro County Compares
How Navarro County Compares
Navarro County scores 3 points above the Texas state average (82/100) and 17 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Navarro County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.4 (asthma 10.6%, diabetes 15.3%)
Estimated additional annual cost per homeowner: $814, driven primarily by wildfire
Infrastructure: 0.329% avg pipe failure probability, 17% of ZIPs at high risk
47.5% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Navarro County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 18 violations. Past 5 years: 36 total (36 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: $814
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
20,966 housing units in Navarro 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 Navarro County
Remediation costs are relatively manageable for most homeowners in Navarro 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 Navarro 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 Navarro County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | M E N Water Supply Corporation | 4,040 | 90 |
| 2 | City of Corsicana | 25,885 | 76 |
| 3 | Winkler Water Supply Corporation | 1,344 | 53 |
| 4 | Chatfield Water Supply Corporation | 6,546 | 47 |
| 5 | B & B Water Supply Corporation | 3,027 | 43 |
26 total water systems serve Navarro County.
All ZIP Codes in Navarro County
12 ZIP codes tracked in Navarro County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 76679 | Purdon | 99 | A | 1 | $122K |
| 2 | 76639 | Dawson | 98 | A | 4 (1 health) | $125K |
| 3 | 76681 | Richland | 98 | A | 6 (1 health) | $105K |
| 4 | 75153 | Powell | 95 | A | 0 | $156K |
| 5 | 76626 | Blooming Grove | 87 | A | 0 | $147K |
| 6 | 75151 | Corsicana | 84 | B | 10 | — |
| 7 | 75102 | Barry | 81 | B | 13 | $115K |
| 8 | 75109 | Corsicana | 81 | B | 10 | $216K |
| 9 | 76641 | Frost | 81 | B | 8 (3 health) | $143K |
| 10 | 75859 | Streetman | 80 | B | 33 (1 health) | $228K |
| 11 | 75110 | Corsicana | 71 | B | 10 | $169K |
| 12 | 75144 | Kerens | 66 | C | 27 (13 health) | $156K |
Recommended Buyer Guides for Navarro County
If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations — federal data drives the order, not retailer arrangements.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Navarro County, Texas
Overview
Navarro County in Texas covers 12 ZIP codes with an average Home Safety Score of A (85/100).
10 of 12 ZIP codes have recorded EPA violations. 19 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.