Chester County, South Carolina
5 ZIP codes · Avg score 80/100 · Grade B · Updated 2026-06-04
Water systems in Chester County serve 5 ZIP codes with few reported safety events.
How Chester County Compares
How Chester County Compares
Chester County scores 2 points above the South Carolina state average (78/100) and 12 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Chester 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: 15.6 (asthma 10.7%, diabetes 16.9%)
Estimated additional annual cost per homeowner: $548, driven primarily by energy_code_gap
Infrastructure: 0.326% avg pipe failure probability
54.6% 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: $548
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
13,909 housing units in Chester 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 Chester County
Remediation costs are relatively manageable for most homeowners in Chester 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 Chester 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 Chester County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Mitford Water District (sc2020005) | 1,878 | 1 |
| 2 | CHESTER METROPOLITAN DISTRICT (1220002) | 15,668 | 0 |
| 3 | York County West Water District (sc4620003) | 18,273 | 0 |
All ZIP Codes in Chester County
5 ZIP codes tracked in Chester County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 29706 | Chester | 95 | A | 0 | $142K |
| 2 | 29714 | Fort Lawn | 95 | A | 0 | $187K |
| 3 | 29055 | Great Falls | 78 | B | 1 | $86K |
| 4 | 29014 | Blackstock | 66 | C | 0 | $165K |
| 5 | 29729 | Richburg | 66 | C | 0 | $94K |
Recommended Buyer Guides for Chester County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- Best Lead Paint Test Kits — 54.6% of homes built before 1978
Deep Dive Reports
Detailed analysis for Chester County, South Carolina
Overview
Chester County in South Carolina covers 5 ZIP codes with an average Home Safety Score of B (80/100).
1 of 5 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.