Dorchester County, South Carolina
11 ZIP codes · Home Safety Score unavailable · 0 of 11 tracked ZIP records scored · Updated
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Dorchester 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: 12.6 (asthma 9.6%, diabetes 12.8%)
Estimated additional annual cost per homeowner: $3,005, driven primarily by flood
39% 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
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $3,005
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
80,294 housing units in Dorchester 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 Dorchester County
Remediation costs are relatively manageable for most homeowners in Dorchester 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 Dorchester County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Dorchester County
8 community water systems serving Dorchester County.
Show all 8 water systems
11 total water systems serve Dorchester County.
Systems with the most violations in Dorchester County
4 water systems with recorded EPA violations.
All ZIP Codes in Dorchester County
11 ZIP codes tracked in Dorchester County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 29420 | North Charleston | — | — | 2 | $284K |
| 2 | 29437 | Dorchester | — | — | $182K | |
| 3 | 29447 | Grover | — | — | — | |
| 4 | 29448 | Harleyville | — | — | $186K | |
| 5 | 29456 | Ladson | — | — | 2 | $244K |
| 6 | 29471 | Reevesville | — | — | 3 | $116K |
| 7 | 29472 | Ridgeville | — | — | 1 | $246K |
| 8 | 29477 | Saint George | — | — | 3 | $75K |
| 9 | 29483 | Summerville | — | — | 14 | $303K |
| 10 | 29484 | Summerville | — | — | — | |
| 11 | 29485 | Summerville | — | — | 2 | $311K |
Recommended Buyer Guides for Dorchester County
While many sites publish identical guide lists across every county they cover, the selection here changes by location - driven by the EPA, NSF, FEMA, and CDC datasets that describe the actual conditions documented for this jurisdiction in the federal record.
- 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 Dorchester County, South Carolina
Overview
Dorchester County in South Carolina covers 11 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.
7 of 7 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.
← Back to South Carolina Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.