Oconee County, South Carolina
12 ZIP codes · Avg score 70/100 · Grade B · Updated 2026-06-04
Oconee County earns a high water safety grade — 12 ZIP codes tracked, virtually all compliant.
How Oconee County Compares
How Oconee County Compares
Oconee County scores 8 points below the South Carolina state average (78/100) and 2 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Oconee County, South Carolina
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15 (asthma 9.8%, diabetes 15.3%)
Estimated additional annual cost per homeowner: $591, driven primarily by wildfire
Infrastructure: 0.287% avg pipe failure probability, 9% of ZIPs at high risk
45.1% 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: $591
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
39,362 housing units in Oconee 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 Oconee County
Remediation costs are relatively manageable for most homeowners in Oconee 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 Oconee 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 Oconee County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | SENECA CITY OF (SC3710002) | 37,478 | 8 |
| 2 | WALHALLA CITY OF (SC3710004) | 18,511 | 7 |
| 3 | Westminster City of (3710003) | 8,085 | 7 |
| 4 | Harts Cove and Tory Pointe (sc3750029) | 560 | 6 |
| 5 | View at the Pier the (sc3770300) | 864 | 6 |
21 total water systems serve Oconee County.
All ZIP Codes in Oconee County
12 ZIP codes tracked in Oconee County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 29691 | Walhalla | 83 | B | 0 | $180K |
| 2 | 29696 | West Union | 83 | B | 1 | $185K |
| 3 | 29672 | Seneca | 79 | B | 2 | $394K |
| 4 | 29678 | Seneca | 79 | B | 2 | $206K |
| 5 | 29679 | Seneca | 79 | B | 2 | — |
| 6 | 29693 | Westminster | 79 | B | 2 | $169K |
| 7 | 29676 | Salem | 76 | B | 5 | $404K |
| 8 | 29664 | Mountain Rest | 63 | C | 0 | $219K |
| 9 | 29686 | Tamassee | 63 | C | 0 | $250K |
| 10 | 29658 | Long Creek | 53 | D | 0 | — |
| 11 | 29665 | Newry | 53 | D | 0 | — |
| 12 | 29675 | Richland | 53 | D | 0 | — |
Recommended Buyer Guides for Oconee County
Filtered against federal data, fitted to local risks.
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Oconee County, South Carolina
Overview
Oconee County in South Carolina covers 12 ZIP codes with an average Home Safety Score of B (70/100).
6 of 12 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to South Carolina 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.