Calhoun County, South Carolina
1 ZIP code · Avg score 95/100 · Grade A · Updated 2026-06-04
Across Calhoun County's 1 ZIP code, 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 Calhoun County Compares
How Calhoun County Compares
Calhoun County scores 17 points above the South Carolina state average (78/100) and 27 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
Key Risk Factors
Health risk index: 15.4 (asthma 10.1%, diabetes 17.3%)
Estimated additional annual cost per homeowner: $1,970, driven primarily by sea_level
Infrastructure: 0.26% avg pipe failure probability
50% 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: $1,970
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
1,924 housing units in Calhoun 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 Calhoun County
Remediation costs are relatively manageable for most homeowners in Calhoun 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 Calhoun County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 3 systems in Calhoun County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | ORANGEBURG DPU (SC3810001) | 46,896 | 0 |
| 2 | Elloree Water System (sc3810003) | 1,498 | 0 |
| 3 | Lower Calhoun (sc0920003) | 504 | 0 |
All ZIP Codes in Calhoun County
1 ZIP code tracked in Calhoun County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 29047 | Elloree | 95 | A | 0 | $148K |
Recommended Buyer Guides for Calhoun County
Below: editorial picks, no sponsored placements.
- Best Lead Paint Test Kits — 50% of homes built before 1978
Overview
Calhoun County in South Carolina covers 1 ZIP code with an average Home Safety Score of A (95/100).
No EPA violations recorded across any tracked ZIP codes in Calhoun County.
← 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.