Houston County, Tennessee
2 ZIP codes · Avg score 67/100 · Grade C · Updated 2026-06-03
Monitoring figures for Houston County indicate average water quality overall — some ZIP codes among the 2 tracked have recorded health-based violations, while others operate cleanly, making individual ZIP-level data the most actionable reference point.
How Houston County Compares
How Houston County Compares
Houston County scores 2 points below the Tennessee state average (69/100) and 1 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 15.5 (asthma 10.9%, diabetes 14.3%)
Estimated additional annual cost per homeowner: $1,355, driven primarily by flood
Infrastructure: 0.33% avg pipe failure probability
57.5% of homes built before 1978 (lead paint era)
Violation History (2022–2023)
→ Stable trendEPA violation counts by year across Houston County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 1 violation. Past 5 years: 2 total (2 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: $1,355
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
2,846 housing units in Houston 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 Houston County
Remediation costs are relatively manageable for most homeowners in Houston 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 Houston 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 Houston County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Erin Water Department | 8,239 | 2 |
| 2 | TENNESSEE RIDGE WATER SYSTEM | 4,169 | 2 |
| 3 | West Stewart Utility District | 555 | 2 |
| 4 | Dover Water Department | 4,037 | 0 |
| 5 | Cumberland City Water Department | 1,023 | 0 |
All ZIP Codes in Houston County
2 ZIP codes tracked in Houston County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 37061 | Erin | 71 | B | 2 (2 health) | $170K |
| 2 | 37175 | Stewart | 63 | C | 0 | $108K |
Recommended Buyer Guides for Houston 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 — 57.5% of homes built before 1978
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Overview
Houston County in Tennessee covers 2 ZIP codes with an average Home Safety Score of C (67/100).
1 of 2 ZIP codes have recorded EPA violations. 2 health-based violations have been documented.
← Back to Tennessee 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.