Tom Green County, Texas
14 ZIP codes · Avg score 79/100 · Grade B · Updated 2026-06-03
Across Tom Green County's 14 ZIP codes, EPA compliance data shows above-average performance — violation rates are minimal, none of the county's systems have triggered health-based MCL exceedances in recent cycles, and the county's scores have stayed above the national baseline across every recent reporting period.
How Tom Green County Compares
How Tom Green County Compares
Tom Green County scores 3 points below the Texas state average (82/100) and 11 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Tom Green County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.7 (asthma 9.6%, diabetes 12.9%)
Estimated additional annual cost per homeowner: $1,153, driven primarily by flood
Infrastructure: 0.406% avg pipe failure probability, 50% of ZIPs at high risk
61.2% of homes built before 1978 (lead paint era)
Violation History (2024–2025)
→ Stable trendEPA violation counts by year across Tom Green County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 59 violations. Past 5 years: 101 total (101 health-based).
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: $1,153
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
51,195 housing units in Tom Green 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 Tom Green County
Remediation costs are relatively manageable for most homeowners in Tom Green 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 Tom Green 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 Tom Green County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Concho Rural Water Grape Creek | 5,049 | 73 |
| 2 | Concho Rural Water N Concho Lake Estates | 1,299 | 73 |
| 3 | CITY OF SAN ANGELO | 105,229 | 63 |
| 4 | Tom Green County Fwsd 3 | 960 | 63 |
| 5 | Concho Rural Water Pecan Creek | 1,275 | 63 |
10 total water systems serve Tom Green County.
All ZIP Codes in Tom Green County
14 ZIP codes tracked in Tom Green County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 76935 | Christoval | 95 | A | 0 | $356K |
| 2 | 76908 | Goodfellow Afb | 93 | A | 4 (2 health) | — |
| 3 | 76934 | Carlsbad | 91 | A | 10 (1 health) | $244K |
| 4 | 76909 | San Angelo | 82 | B | 9 (5 health) | — |
| 5 | 76902 | San Angelo | 81 | B | 9 (5 health) | — |
| 6 | 76906 | San Angelo | 81 | B | 9 (5 health) | — |
| 7 | 76903 | San Angelo | 76 | B | 9 (5 health) | $116K |
| 8 | 76904 | San Angelo | 76 | B | 9 (5 health) | $267K |
| 9 | 76905 | San Angelo | 76 | B | 9 (5 health) | $146K |
| 10 | 76939 | Knickerbocker | 73 | B | 0 | — |
| 11 | 76958 | Water Valley | 73 | B | 0 | $269K |
| 12 | 76901 | San Angelo | 71 | B | 9 (5 health) | $170K |
| 13 | 76886 | Veribest | 66 | C | 0 | — |
| 14 | 76957 | Wall | 66 | C | 0 | — |
Recommended Buyer Guides for Tom Green County
Designed to find the guide that fits the county, not the other way around — the system reads EPA detections, FEMA hazard layers, and CDC lead-exposure markers, then outputs the categories that resolve those specific risks for households here, with NSF-certified products surfaced when the matching contaminant appears in the local monitoring data.
- Best Lead Paint Test Kits — 61.2% 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 Tom Green County, Texas
Overview
Tom Green County in Texas covers 14 ZIP codes with an average Home Safety Score of B (79/100).
9 of 14 ZIP codes have recorded EPA violations. 38 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.