Macon County, Tennessee
3 ZIP codes · Avg score 68/100 · Grade C · Updated 2026-06-03
Macon County's water quality grade reflects a middle-ground assessment — its 3 ZIP codes range from fully compliant to violation-flagged.
How Macon County Compares
How Macon County Compares
Macon County scores 1 points below the Tennessee state average (69/100) and 0 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 16 (asthma 11.3%, diabetes 14.6%)
Estimated additional annual cost per homeowner: $743, driven primarily by energy_code_gap
Infrastructure: 0.267% avg pipe failure probability
51% of homes built before 1978 (lead paint era)
Violation History (2023–2025)
→ Stable trendEPA violation counts by year across Macon County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 8 violations. Past 5 years: 17 total (17 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: $743
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
13,168 housing units in Macon 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 Macon County
Remediation costs are relatively manageable for most homeowners in Macon 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 Macon 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 Macon County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Lafayette Water System | 21,551 | 1 |
| 2 | Hartsville-trousdale W&s U.d. | 10,562 | 1 |
| 3 | Red Boiling Springs W.s. | 6,050 | 1 |
| 4 | Northwest Clay County Utility | 4,437 | 0 |
| 5 | Westmoreland Water System | 5,873 | 0 |
8 total water systems serve Macon County.
All ZIP Codes in Macon County
3 ZIP codes tracked in Macon County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 37186 | Westmoreland | 70 | B | 0 | $193K |
| 2 | 37083 | Lafayette | 68 | C | 1 | $231K |
| 3 | 37150 | Red Boiling Springs | 65 | C | 0 | $148K |
Recommended Buyer Guides for Macon County
Editorial-only picks, screened against the EPA detections on file.
- Best Lead Paint Test Kits — 51% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Overview
Macon County in Tennessee covers 3 ZIP codes with an average Home Safety Score of C (68/100).
1 of 3 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.