Polk County, Tennessee
8 ZIP codes · Avg score 70/100 · Grade B · Updated 2026-06-03
Polk County maintains reliable drinking water quality across all 8 of its tracked ZIP codes.
How Polk County Compares
How Polk County Compares
Polk County scores 1 points above the Tennessee state average (69/100) and 2 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Polk 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 11.2%, diabetes 15.1%)
Estimated additional annual cost per homeowner: $1,021, driven primarily by energy_code_gap
Infrastructure: 0.29% avg pipe failure probability
52.4% 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: $1,021
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
7,624 housing units in Polk 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 Polk County
Remediation costs are relatively manageable for most homeowners in Polk 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 Polk 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 Polk County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Copperhill Water Department | 1,217 | 6 |
| 2 | COPPER BASIN UTILITY DISTRICT | 2,710 | 6 |
| 3 | Cherokee Hills U.d. | 258 | 6 |
| 4 | Benton Water System | 2,491 | 4 |
| 5 | Ocoee Utility District | 21,082 | 4 |
11 total water systems serve Polk County.
All ZIP Codes in Polk County
8 ZIP codes tracked in Polk County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 37309 | Calhoun | 83 | B | 0 | $159K |
| 2 | 37391 | Turtletown | 83 | B | 0 | $185K |
| 3 | 37317 | Copperhill | 79 | B | 6 | $118K |
| 4 | 37307 | Benton | 77 | B | 3 | $188K |
| 5 | 37361 | Ocoee | 76 | B | 1 | $116K |
| 6 | 37326 | Ducktown | 53 | D | 0 | $105K |
| 7 | 37333 | Farner | 53 | D | 0 | $115K |
| 8 | 37369 | Reliance | 53 | D | 0 | $118K |
Recommended Buyer Guides for Polk County
Editorial methodology pairs each documented risk in this county with the buyer category that addresses it, drawing on water-quality detections, housing-stock lead exposure, EPA Radon Zone designation, and FEMA flood and wildfire ratings. NSF-certified options surface where applicable, and products that match the specific contaminant take priority.
- Best Lead Paint Test Kits — 52.4% of homes built before 1978
Deep Dive Reports
Detailed analysis for Polk County, Tennessee
Overview
Polk County in Tennessee covers 8 ZIP codes with an average Home Safety Score of B (70/100).
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.