Lancaster County, South Carolina
8 ZIP codes · Avg score 93/100 · Grade A · Updated 2026-06-04
Lancaster County's tap water quality puts it in the upper tier nationally; the 8 ZIP codes here record few health-based violations.
How Lancaster County Compares
How Lancaster County Compares
Lancaster County scores 15 points above the South Carolina state average (78/100) and 25 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Lancaster 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: 13.6 (asthma 9.5%, diabetes 14.2%)
Estimated additional annual cost per homeowner: $496, driven primarily by flood
Infrastructure: 0.294% avg pipe failure probability
47% 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: $496
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
42,751 housing units in Lancaster 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 Lancaster County
Remediation costs are relatively manageable for most homeowners in Lancaster 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 Lancaster 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 Lancaster County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Fort Mill Town of (sc4610003) | 25,000 | 3 |
| 2 | Riverview Rural Cws (sc4620001) | 2,200 | 3 |
| 3 | Bgwc Foxwood (sc4650008) | 570 | 3 |
| 4 | Twin Lakes Estates (sc4660007) | 550 | 3 |
| 5 | Quail Meadows Park Llc (sc4660063) | 221 | 3 |
10 total water systems serve Lancaster County.
All ZIP Codes in Lancaster County
8 ZIP codes tracked in Lancaster County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 29058 | Heath Springs | 99 | A | 0 | $180K |
| 2 | 29721 | Lancaster | 99 | A | 0 | — |
| 3 | 29722 | Lancaster | 99 | A | 0 | — |
| 4 | 29744 | Van Wyck | 99 | A | 0 | — |
| 5 | 29067 | Kershaw | 95 | A | 0 | $115K |
| 6 | 29707 | Fort Mill | 94 | A | 3 (1 health) | $439K |
| 7 | 29720 | Lancaster | 90 | A | 0 | $213K |
| 8 | 29175 | Westville | 66 | C | 0 | — |
Recommended Buyer Guides for Lancaster 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 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 Lancaster County, South Carolina
Overview
Lancaster County in South Carolina covers 8 ZIP codes with an average Home Safety Score of A (93/100).
1 of 8 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.