Greenwood County, South Carolina
7 ZIP codes · Avg score 87/100 · Grade A · Updated 2026-06-04
Across Greenwood County's 7 ZIP codes, EPA compliance data shows above-average performance — violation rates are minimal, none of the county's systems have triggered health-based MCL exceedances in recent cycles, and the county's scores have stayed above the national baseline across every recent reporting period.
How Greenwood County Compares
How Greenwood County Compares
Greenwood County scores 9 points above the South Carolina state average (78/100) and 19 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Greenwood 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: 14.4 (asthma 10.1%, diabetes 15.4%)
Estimated additional annual cost per homeowner: $673, driven primarily by flood
Infrastructure: 0.344% avg pipe failure probability
57.4% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Greenwood County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 4 violations. Past 5 years: 8 total (8 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: $673
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
29,983 housing units in Greenwood 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 Greenwood County
Remediation costs are relatively manageable for most homeowners in Greenwood 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 Greenwood 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 Greenwood County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Greenwood Cpw (2410001) | 49,632 | 5 |
| 2 | Mitchell Mhp (sc2460001) | 43 | 5 |
| 3 | Hyde Park S/d (sc2450001) | 234 | 4 |
| 4 | Mathews Heights (sc2450021) | 73 | 4 |
| 5 | Country Acres (sc2450057) | 34 | 4 |
8 total water systems serve Greenwood County.
All ZIP Codes in Greenwood County
7 ZIP codes tracked in Greenwood County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 29647 | Greenwood | 99 | A | 1 | — |
| 2 | 29648 | Greenwood | 99 | A | 1 | — |
| 3 | 29646 | Greenwood | 95 | A | 1 | $131K |
| 4 | 29666 | Ninety Six | 95 | A | 1 | $165K |
| 5 | 29649 | Greenwood | 90 | A | 1 | $208K |
| 6 | 29653 | Hodges | 66 | C | 0 | $107K |
| 7 | 29819 | Bradley | 66 | C | 0 | $77K |
Recommended Buyer Guides for Greenwood County
Below: editorial picks, no sponsored placements.
- Best Lead Paint Test Kits — 57.4% 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 Greenwood County, South Carolina
Overview
Greenwood County in South Carolina covers 7 ZIP codes with an average Home Safety Score of A (87/100).
5 of 7 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.