Obion County, Tennessee
12 ZIP codes · Avg score 78/100 · Grade B · Updated 2026-06-03
In current tracking cycles, Obion County — spanning 12 ZIP codes — records above-average water quality outcomes; the county's compliance history over recent years shows few departures from federal standards.
How Obion County Compares
How Obion County Compares
Obion County scores 9 points above the Tennessee state average (69/100) and 10 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Obion County, Tennessee
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 16.2 (asthma 11.3%, diabetes 15.8%)
Estimated additional annual cost per homeowner: $904, driven primarily by flood
Infrastructure: 0.32% avg pipe failure probability
65.1% 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: $904
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
14,493 housing units in Obion 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 Obion County
Remediation costs are relatively manageable for most homeowners in Obion 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 Obion 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 Obion County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Elbridge Water Association | 3,239 | 10 |
| 2 | Reelfoot Water Association | 644 | 10 |
| 3 | Hornbeak Utility District | 1,416 | 9 |
| 4 | Kenton Water Department | 1,492 | 5 |
| 5 | Gibson Company Mun Water District #4 | 3,386 | 5 |
14 total water systems serve Obion County.
All ZIP Codes in Obion County
12 ZIP codes tracked in Obion County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 38260 | Troy | 99 | A | 0 | $117K |
| 2 | 38281 | Union City | 95 | A | 1 | — |
| 3 | 38257 | South Fulton | 90 | A | 0 | $117K |
| 4 | 38232 | Hornbeak | 86 | A | 9 | $81K |
| 5 | 38233 | Kenton | 85 | A | 5 | $91K |
| 6 | 38261 | Union City | 85 | A | 1 | $142K |
| 7 | 38226 | Dukedom | 66 | C | 0 | $86K |
| 8 | 38254 | Samburg | 66 | C | 0 | — |
| 9 | 38259 | Trimble | 66 | C | 0 | $101K |
| 10 | 38271 | Woodland Mills | 66 | C | 0 | — |
| 11 | 38389 | Yorkville | 66 | C | 0 | $79K |
| 12 | 38253 | Rives | 65 | C | 0 | $193K |
Recommended Buyer Guides for Obion County
Eight risk categories drive the selection — PFAS exceedance, lead above EPA action level, pre-1978 housing share, EPA Radon Zone 1, flood-top-risk, wildfire-top-risk, multi-contaminant load, and a baseline fallback — and each category maps to a specific buyer-guide track that surfaces when the county data hits its threshold for that hazard signal.
- Best Lead Paint Test Kits — 65.1% of homes built before 1978
- 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 Obion County, Tennessee
Overview
Obion County in Tennessee covers 12 ZIP codes with an average Home Safety Score of B (78/100).
4 of 12 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.