Davidson County, Tennessee
48 ZIP codes · Avg score 60/100 · Grade C · Updated 2026-06-03
Based on current EPA data, Davidson County's 48 ZIP codes reflect fair but mixed water safety.
How Davidson County Compares
How Davidson County Compares
Davidson County scores 9 points below the Tennessee state average (69/100) and 8 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Davidson 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 (asthma 10.7%, diabetes 11.2%)
Estimated additional annual cost per homeowner: $1,434, driven primarily by flood
Infrastructure: 0.263% avg pipe failure probability, 2% of ZIPs at high risk
Violation History (2022–2024)
→ Stable trendEPA violation counts by year across Davidson County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 3 violations. Past 5 years: 5 total (5 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: $1,434
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 Davidson County
Remediation costs are relatively manageable for most homeowners in Davidson 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 Davidson 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 Davidson County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | METRO WATER SERVICES | 778,153 | 118 |
| 2 | Harpeth Valley U.d. | 64,359 | 117 |
| 3 | MADISON SUBURBAN U.D. | 81,203 | 8 |
| 4 | FRANKLIN WATER DEPT | 77,222 | 3 |
| 5 | H.b.& T.s. Utility District | 40,094 | 3 |
12 total water systems serve Davidson County.
All ZIP Codes in Davidson County
48 ZIP codes tracked in Davidson County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 37201 | Nashville | 69 | C | 3 | $392K |
| 2 | 37202 | Nashville | 69 | C | 3 | — |
| 3 | 37219 | Nashville | 69 | C | 3 | $394K |
| 4 | 37224 | Nashville | 69 | C | 3 | — |
| 5 | 37228 | Nashville | 69 | C | 3 | — |
| 6 | 37116 | Madison | 66 | C | 1 | — |
| 7 | 37222 | Nashville | 65 | C | 3 | — |
| 8 | 37227 | Nashville | 65 | C | 3 | — |
| 9 | 37229 | Nashville | 65 | C | 3 | — |
| 10 | 37230 | Nashville | 65 | C | 3 | — |
| 11 | 37232 | Nashville | 65 | C | 3 | — |
| 12 | 37234 | Nashville | 65 | C | 3 | — |
| 13 | 37235 | Nashville | 65 | C | 3 | — |
| 14 | 37236 | Nashville | 65 | C | 3 | — |
| 15 | 37238 | Nashville | 65 | C | 3 | — |
| 16 | 37240 | Nashville | 65 | C | 3 | — |
| 17 | 37241 | Nashville | 65 | C | 3 | — |
| 18 | 37242 | Nashville | 65 | C | 3 | — |
| 19 | 37243 | Nashville | 65 | C | 3 | — |
| 20 | 37244 | Nashville | 65 | C | 3 | — |
| 21 | 37246 | Nashville | 65 | C | 3 | — |
| 22 | 37250 | Nashville | 65 | C | 3 | — |
| 23 | 37203 | Nashville | 64 | C | 3 | $520K |
| 24 | 37208 | Nashville | 64 | C | 3 | $417K |
| 25 | 37212 | Nashville | 64 | C | 3 | $929K |
| 26 | 37213 | Nashville | 64 | C | 3 | — |
| 27 | 37220 | Nashville | 64 | C | 3 | $746K |
| 28 | 37206 | Nashville | 59 | C | 3 | $529K |
| 29 | 37210 | Nashville | 59 | C | 3 | $335K |
| 30 | 37216 | Nashville | 59 | C | 3 | $404K |
| 31 | 37217 | Nashville | 59 | C | 3 | $279K |
| 32 | 37221 | Nashville | 59 | C | 3 | $433K |
| 33 | 37115 | Madison | 55 | C | 1 | $271K |
| 34 | 37204 | Nashville | 54 | D | 3 | $832K |
| 35 | 37205 | Nashville | 54 | D | 3 | $890K |
| 36 | 37207 | Nashville | 54 | D | 3 | $333K |
| 37 | 37209 | Nashville | 54 | D | 3 | $496K |
| 38 | 37211 | Nashville | 54 | D | 3 | $374K |
| 39 | 37214 | Nashville | 54 | D | 3 | $315K |
| 40 | 37215 | Nashville | 54 | D | 3 | $959K |
| 41 | 37218 | Nashville | 54 | D | 3 | $295K |
| 42 | 37011 | Antioch | 53 | D | 0 | — |
| 43 | 37070 | Goodlettsville | 53 | D | 0 | — |
| 44 | 37080 | Joelton | 45 | D | 0 | $326K |
| 45 | 37072 | Goodlettsville | 40 | D | 0 | $341K |
| 46 | 37076 | Hermitage | 40 | D | 0 | $348K |
| 47 | 37189 | Whites Creek | 40 | D | 0 | $358K |
| 48 | 37013 | Antioch | 35 | F | 0 | $294K |
Recommended Buyer Guides for Davidson County
Methodologically, the recommendation order reflects severity in the federal record: contaminants flagged in EPA detection records for this county outrank generic water concerns, FEMA-confirmed hazard ratings shift emergency-related categories upward, and CDC lead-exposure markers govern when lead-test kits and certified filters appear at the top of the list.
- 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 Davidson County, Tennessee
Overview
Davidson County in Tennessee covers 48 ZIP codes with an average Home Safety Score of C (60/100).
41 of 48 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.