Madison County, Tennessee
8 ZIP codes · Avg score 58/100 · Grade C · Updated 2026-06-03
For most households in Madison County, the 8 tracked ZIP codes show adequate but uneven water quality.
How Madison County Compares
How Madison County Compares
Madison 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: Madison County, Tennessee
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.7 (asthma 11.5%, diabetes 16.2%)
Estimated additional annual cost per homeowner: $818, driven primarily by flood
Infrastructure: 0.25% avg pipe failure probability
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: $818
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 Madison County
Remediation costs are relatively manageable for most homeowners in Madison 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 Madison 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 Madison County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Jea-mercer Plant | 168 | 25 |
| 2 | Jackson Water System | 91,111 | 24 |
| 3 | Henderson Water Department | 8,810 | 24 |
| 4 | County Wide Utility District | 8,528 | 4 |
| 5 | Cedar Grove U.d. | 1,492 | 4 |
All ZIP Codes in Madison County
8 ZIP codes tracked in Madison County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 38392 | Mercer | 68 | C | 1 | $43K |
| 2 | 38302 | Jackson | 64 | C | 4 | — |
| 3 | 38303 | Jackson | 64 | C | 4 | — |
| 4 | 38308 | Jackson | 60 | C | 4 | — |
| 5 | 38314 | Jackson | 60 | C | 4 | — |
| 6 | 38301 | Jackson | 54 | D | 4 | $119K |
| 7 | 38305 | Jackson | 54 | D | 4 | $221K |
| 8 | 38391 | Denmark | 40 | D | 0 | $98K |
Recommended Buyer Guides for Madison County
Filtered against federal data, fitted to local risks.
- 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 Madison County, Tennessee
Overview
Madison County in Tennessee covers 8 ZIP codes with an average Home Safety Score of C (58/100).
7 of 8 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← 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.