Greenville County, South Carolina
30 ZIP codes · Avg score 56/100 · Grade C · Updated 2026-06-04
Unlike top-rated counties, Greenville County's 30 ZIP codes carry a fair number of documented violations — chlorine compliance and disinfection byproduct limits are the categories most often cited in recent data.
How Greenville County Compares
How Greenville County Compares
Greenville County scores 22 points below the South Carolina state average (78/100) and 12 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Greenville 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: 12.3 (asthma 9.4%, diabetes 12.2%)
Estimated additional annual cost per homeowner: $1,073, driven primarily by flood
Infrastructure: 0.291% avg pipe failure probability, 5% of ZIPs at high risk
49.3% 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: $1,073
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
238,520 housing units in Greenville 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 Greenville County
Remediation costs are relatively manageable for most homeowners in Greenville 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 Greenville 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 Greenville County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Greenville Water (2310001) | 396,265 | 3 |
| 2 | Laurens County W&s Commission (sc3020001) | 36,314 | 2 |
| 3 | BGWC KINGSWOOD S/D (SC2350011) | 77 | 2 |
| 4 | Sunset Pointe S/d (sc3050013) | 60 | 2 |
| 5 | MARIETTA W/D (2320004) | 3,255 | 1 |
18 total water systems serve Greenville County.
All ZIP Codes in Greenville County
30 ZIP codes tracked in Greenville County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 29356 | Landrum | 70 | B | 0 | $274K |
| 2 | 29652 | Greer | 66 | C | 0 | — |
| 3 | 29650 | Greer | 65 | C | 0 | $332K |
| 4 | 29651 | Greer | 65 | C | 0 | $264K |
| 5 | 29680 | Simpsonville | 65 | C | 1 | $279K |
| 6 | 29690 | Travelers Rest | 65 | C | 0 | $267K |
| 7 | 29603 | Greenville | 62 | C | 0 | — |
| 8 | 29606 | Greenville | 62 | C | 0 | — |
| 9 | 29608 | Greenville | 62 | C | 0 | — |
| 10 | 29681 | Simpsonville | 60 | C | 1 | $326K |
| 11 | 29601 | Greenville | 57 | C | 0 | $583K |
| 12 | 29605 | Greenville | 57 | C | 0 | $228K |
| 13 | 29609 | Greenville | 57 | C | 0 | $304K |
| 14 | 29611 | Greenville | 57 | C | 0 | $164K |
| 15 | 29661 | Marietta | 56 | C | 1 (1 health) | $194K |
| 16 | 29610 | Greenville | 55 | C | 0 | — |
| 17 | 29612 | Greenville | 55 | C | 0 | — |
| 18 | 29613 | Greenville | 55 | C | 0 | — |
| 19 | 29614 | Greenville | 55 | C | 0 | — |
| 20 | 29616 | Greenville | 55 | C | 0 | — |
| 21 | 29322 | Campobello | 53 | D | 0 | $232K |
| 22 | 29635 | Cleveland | 53 | D | 0 | $201K |
| 23 | 29644 | Fountain Inn | 53 | D | 0 | $234K |
| 24 | 29607 | Greenville | 52 | D | 0 | $315K |
| 25 | 29617 | Greenville | 52 | D | 0 | $218K |
| 26 | 29615 | Greenville | 47 | D | 0 | $349K |
| 27 | 29687 | Taylors | 45 | D | 0 | $247K |
| 28 | 29636 | Conestee | 40 | D | 0 | — |
| 29 | 29662 | Mauldin | 40 | D | 0 | $230K |
| 30 | 29683 | Slater | 40 | D | 0 | $133K |
Recommended Buyer Guides for Greenville County
Retailer arrangements don't shape what appears here — the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- 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 Greenville County, South Carolina
Overview
Greenville County in South Carolina covers 30 ZIP codes with an average Home Safety Score of C (56/100).
3 of 30 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← 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.