Smith County, Texas
21 ZIP codes · Avg score 89/100 · Grade A · Updated 2026-06-03
EPA monitoring reports for Smith County cover 21 ZIP codes and tell a largely reassuring story — compliance rates are high and health-based violations are far below the national norm.
How Smith County Compares
How Smith County Compares
Smith County scores 7 points above the Texas state average (82/100) and 21 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Smith County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.2 (asthma 10.5%, diabetes 13.2%)
Estimated additional annual cost per homeowner: $694, driven primarily by flood
Infrastructure: 0.358% avg pipe failure probability, 19% of ZIPs at high risk
50.5% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
↑ Worsening trendEPA violation counts by year across Smith County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 72 violations. Past 5 years: 119 total (119 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: $694
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
93,249 housing units in Smith 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 Smith County
Remediation costs are relatively manageable for most homeowners in Smith 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 Smith 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 Smith County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Southern Utilities | 69,735 | 153 |
| 2 | Jackson Water Supply Corporation | 5,532 | 147 |
| 3 | Wright City Water Supply Corporation 2 | 2,124 | 81 |
| 4 | Wright City Water Supply Corporation 1 | 1,350 | 81 |
| 5 | City of Arp | 1,249 | 81 |
32 total water systems serve Smith County.
All ZIP Codes in Smith County
21 ZIP codes tracked in Smith County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 75713 | Tyler | 98 | A | 4 (1 health) | — |
| 2 | 75798 | Tyler | 98 | A | 4 (1 health) | — |
| 3 | 75799 | Tyler | 98 | A | 4 (1 health) | — |
| 4 | 75704 | Tyler | 94 | A | 4 (1 health) | $136K |
| 5 | 75705 | Tyler | 94 | A | 4 (1 health) | $161K |
| 6 | 75706 | Tyler | 94 | A | 4 (1 health) | $125K |
| 7 | 75707 | Tyler | 94 | A | 4 (1 health) | $256K |
| 8 | 75708 | Tyler | 94 | A | 4 (1 health) | $131K |
| 9 | 75709 | Tyler | 94 | A | 4 (1 health) | $189K |
| 10 | 75710 | Tyler | 94 | A | 4 (1 health) | — |
| 11 | 75711 | Tyler | 94 | A | 4 (1 health) | — |
| 12 | 75712 | Tyler | 94 | A | 4 (1 health) | — |
| 13 | 75789 | Troup | 93 | A | 11 (2 health) | $192K |
| 14 | 75791 | Whitehouse | 90 | A | 0 | $232K |
| 15 | 75757 | Bullard | 89 | A | 3 (1 health) | $278K |
| 16 | 75771 | Lindale | 86 | A | 3 | $266K |
| 17 | 75701 | Tyler | 84 | B | 4 (1 health) | $191K |
| 18 | 75702 | Tyler | 84 | B | 4 (1 health) | $100K |
| 19 | 75703 | Tyler | 84 | B | 4 (1 health) | $311K |
| 20 | 75792 | Winona | 66 | C | 10 (6 health) | $141K |
| 21 | 75750 | Arp | 55 | C | 66 (58 health) | $142K |
Recommended Buyer Guides for Smith 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 Lead Paint Test Kits — 50.5% 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 Smith County, Texas
Overview
Smith County in Texas covers 21 ZIP codes with an average Home Safety Score of A (89/100).
20 of 21 ZIP codes have recorded EPA violations. 82 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.