Wilson County, Tennessee
9 ZIP codes · Avg score 58/100 · Grade C · Updated 2026-06-03
For most households in Wilson County, the 9 tracked ZIP codes show adequate but uneven water quality.
How Wilson County Compares
How Wilson County Compares
Wilson County scores 11 points below the Tennessee state average (69/100) and 10 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Wilson County, Tennessee
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.5 (asthma 10.4%, diabetes 11.3%)
Estimated additional annual cost per homeowner: $1,130, driven primarily by flood
Infrastructure: 0.281% avg pipe failure probability
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Wilson County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 10 violations. Past 5 years: 27 total (27 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: $1,130
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Wilson County
Remediation costs are relatively manageable for most homeowners in Wilson 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 Wilson 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 Wilson County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Wilson Company Water & Wastewater | 22,680 | 23 |
| 2 | Smith Utility District | 8,913 | 19 |
| 3 | South Side U.d. #1 | 4,431 | 19 |
| 4 | Gladeville Utility District | 19,813 | 14 |
| 5 | Lebanon Water System | 60,669 | 13 |
16 total water systems serve Wilson County.
All ZIP Codes in Wilson County
9 ZIP codes tracked in Wilson County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 37012 | Alexandria | 66 | C | 10 (1 health) | $231K |
| 2 | 37121 | Mount Juliet | 66 | C | 0 | — |
| 3 | 37184 | Watertown | 65 | C | 1 | $288K |
| 4 | 37088 | Lebanon | 62 | C | 4 (3 health) | — |
| 5 | 37090 | Lebanon | 62 | C | 4 (3 health) | $393K |
| 6 | 37071 | Gladeville | 56 | C | 1 | — |
| 7 | 37122 | Mount Juliet | 55 | C | 0 | $452K |
| 8 | 37087 | Lebanon | 52 | D | 4 (3 health) | $360K |
| 9 | 37136 | Norene | 40 | D | 0 | — |
Recommended Buyer Guides for Wilson County
Below: editorial picks, no sponsored placements.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- 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 Wilson County, Tennessee
Overview
Wilson County in Tennessee covers 9 ZIP codes with an average Home Safety Score of C (58/100).
6 of 9 ZIP codes have recorded EPA violations. 10 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.