McMinn County, Tennessee
8 ZIP codes · Avg score 64/100 · Grade C · Updated 2026-06-03
Tracking 8 ZIP codes in McMinn County reveals a mixed picture — tap water quality varies meaningfully by location.
How McMinn County Compares
How McMinn County Compares
McMinn County scores 5 points below the Tennessee state average (69/100) and 4 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: McMinn County, Tennessee
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 16.6 (asthma 11.1%, diabetes 15.4%)
Estimated additional annual cost per homeowner: $839, driven primarily by flood
Infrastructure: 0.261% avg pipe failure probability
48% of homes built before 1978 (lead paint era)
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: $839
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
24,920 housing units in McMinn 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 McMinn County
Remediation costs are relatively manageable for most homeowners in McMinn 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 McMinn 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 McMinn County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Englewood Water Department | 3,742 | 4 |
| 2 | Athens Utilities Board | 25,851 | 3 |
| 3 | Niota Water System | 3,932 | 3 |
| 4 | Watts Bar Utility District | 15,571 | 2 |
| 5 | ETOWAH UTILITIES | 12,851 | 2 |
9 total water systems serve McMinn County.
All ZIP Codes in McMinn County
8 ZIP codes tracked in McMinn County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 37329 | Englewood | 70 | B | 1 | $162K |
| 2 | 37331 | Etowah | 70 | B | 1 | $171K |
| 3 | 37370 | Riceville | 66 | C | 0 | $208K |
| 4 | 37371 | Athens | 66 | C | 0 | — |
| 5 | 37303 | Athens | 65 | C | 0 | $197K |
| 6 | 37826 | Niota | 65 | C | 2 | $211K |
| 7 | 37325 | Delano | 53 | D | 0 | $163K |
| 8 | 37880 | Ten Mile | 53 | D | 0 | $217K |
Recommended Buyer Guides for McMinn County
Federal and certification sources drive the ordering: EPA monitoring data, NSF certifications, FEMA flood maps, and CDC lead guidance — guides surface only when county data warrants them.
- 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 McMinn County, Tennessee
Overview
McMinn County in Tennessee covers 8 ZIP codes with an average Home Safety Score of C (64/100).
3 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.