Chambers County, Texas
9 ZIP codes · Avg score 67/100 · Grade C · Updated 2026-06-03
Covering 9 ZIP codes, Chambers County falls in the average tier for tap water safety — violations appear in a meaningful share of areas, and the data suggests quality depends heavily on which specific part of the county a household sits in.
How Chambers County Compares
How Chambers County Compares
Chambers County scores 15 points below the Texas state average (82/100) and 1 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Chambers County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.6 (asthma 10.1%, diabetes 12.4%)
Estimated additional annual cost per homeowner: $4,956, driven primarily by flood
Infrastructure: 0.277% avg pipe failure probability, 11% of ZIPs at high risk
42.3% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Chambers County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 9 violations. Past 5 years: 21 total (21 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: $4,956
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
19,726 housing units in Chambers 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 Chambers County
Remediation costs are relatively manageable for most homeowners in Chambers 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 Chambers 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 Chambers County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | City of Mont Belvieu | 12,864 | 37 |
| 2 | City of Baytown | 86,004 | 29 |
| 3 | Harris County Fwsd 27 | 2,190 | 29 |
| 4 | Vista Utilities | 90 | 29 |
| 5 | Eagles Landing | 90 | 29 |
15 total water systems serve Chambers County.
All ZIP Codes in Chambers County
9 ZIP codes tracked in Chambers County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 77661 | Stowell | 87 | A | 6 (3 health) | — |
| 2 | 77580 | Mont Belvieu | 85 | A | 8 (5 health) | — |
| 3 | 77523 | Baytown | 79 | B | 29 (1 health) | $341K |
| 4 | 77514 | Anahuac | 72 | B | 0 | $200K |
| 5 | 77623 | High Island | 65 | C | 0 | — |
| 6 | 77617 | Gilchrist | 55 | C | 0 | — |
| 7 | 77622 | Hamshire | 55 | C | 0 | $223K |
| 8 | 77665 | Winnie | 55 | C | 0 | $204K |
| 9 | 77565 | Kemah | 50 | D | 0 | $377K |
Recommended Buyer Guides for Chambers County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- 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 Chambers County, Texas
Overview
Chambers County in Texas covers 9 ZIP codes with an average Home Safety Score of C (67/100).
3 of 9 ZIP codes have recorded EPA violations. 9 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.