Clarendon County, South Carolina
9 ZIP codes · Avg score 78/100 · Grade B · Updated 2026-06-04
Spanning 9 ZIP codes, Clarendon County posts strong drinking water compliance — most systems have never triggered a health-based notice.
How Clarendon County Compares
How Clarendon County Compares
Clarendon County scores 0 points above the South Carolina state average (78/100) and 10 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Clarendon 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: 16.4 (asthma 10.7%, diabetes 19.6%)
Estimated additional annual cost per homeowner: $2,732, driven primarily by sea_level
Infrastructure: 0.307% avg pipe failure probability
52% 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: $2,732
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
16,497 housing units in Clarendon 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 Clarendon County
Remediation costs are relatively manageable for most homeowners in Clarendon 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 Clarendon 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 Clarendon County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Summerton Town of (sc1410003) | 2,096 | 12 |
| 2 | Wyboo Water Department Inc. (sc1450009) | 618 | 11 |
| 3 | Gin Pond Shores Water Company (sc1450005) | 664 | 7 |
| 4 | North Shore Water Sys (sc1470863) | 272 | 7 |
| 5 | MANNING CITY OF (SC1410002) | 5,908 | 4 |
9 total water systems serve Clarendon County.
All ZIP Codes in Clarendon County
9 ZIP codes tracked in Clarendon County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 29125 | Pinewood | 95 | A | 1 | $120K |
| 2 | 29162 | Turbeville | 95 | A | 0 | $135K |
| 3 | 29102 | Manning | 87 | A | 4 | $160K |
| 4 | 29148 | Summerton | 84 | B | 7 | $153K |
| 5 | 29111 | New Zion | 73 | B | 0 | $118K |
| 6 | 29001 | Alcolu | 66 | C | 0 | $146K |
| 7 | 29041 | Davis Station | 66 | C | 0 | — |
| 8 | 29051 | Gable | 66 | C | 0 | $169K |
| 9 | 29143 | Sardinia | 66 | C | 0 | — |
Recommended Buyer Guides for Clarendon County
Methodologically, the recommendation order reflects severity in the federal record: contaminants flagged in EPA detection records for this county outrank generic water concerns, FEMA-confirmed hazard ratings shift emergency-related categories upward, and CDC lead-exposure markers govern when lead-test kits and certified filters appear at the top of the list.
- Best Lead Paint Test Kits — 52% of homes built before 1978
Deep Dive Reports
Detailed analysis for Clarendon County, South Carolina
Overview
Clarendon County in South Carolina covers 9 ZIP codes with an average Home Safety Score of B (78/100).
3 of 9 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.