Dorchester County, Maryland
16 ZIP codes · Avg score 100/100 · Grade A · Updated
ZipCheckup grade for Dorchester County: A.
No federal data flags a major home-safety concern for this ZIP.
Across all 16 ZIP codes in Dorchester County, tap water consistently meets or exceeds federal safety standards.
How Dorchester County Compares
How Dorchester County Compares
Dorchester County scores 31 points above the Maryland state average (69/100) and 27 points above the national average (73/100).
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, Maryland
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.9 (asthma 11.5%, diabetes 16.6%)
Estimated additional annual cost per homeowner: $5,414, driven primarily by sea_level
69.3% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Dorchester County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 4 violations. Past 5 years: 5 total (5 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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: $5,414
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
15,654 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
2 community water systems serving Dorchester County.
- A
Systems with the most violations in Dorchester County
1 water system with recorded EPA violations.
All ZIP Codes in Dorchester County
16 ZIP codes tracked in Dorchester County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 21613 | Cambridge | 100 | A | 0 | $280K |
| 2 | 21622 | Church Creek | — | — | $248K | |
| 3 | 21626 | Crapo | — | — | $708K | |
| 4 | 21627 | Crocheron | — | — | — | |
| 5 | 21631 | East New Market | — | — | $308K | |
| 6 | 21634 | Fishing Creek | — | — | $275K | |
| 7 | 21643 | Hurlock | — | — | 2 (1 health) | $220K |
| 8 | 21648 | Madison | — | — | $171K | |
| 9 | 21659 | Rhodesdale | — | — | 2 (1 health) | $202K |
| 10 | 21664 | Secretary | — | — | $172K | |
| 11 | 21669 | Taylors Island | — | — | $410K | |
| 12 | 21672 | Toddville | — | — | $85K | |
| 13 | 21675 | Wingate | — | — | — | |
| 14 | 21677 | Woolford | — | — | $439K | |
| 15 | 21835 | Linkwood | — | — | — | |
| 16 | 21869 | Vienna | — | — | $203K |
Recommended Buyer Guides for Dorchester County
Filtered against EPA monitoring data and CDC lead-exposure guidance, the guides below skip the generic catalog and connect directly to the contaminants and hazards on file here.
- Best Lead Paint Test Kits — 69.3% of homes built before 1978
Deep Dive Reports
Detailed analysis for Dorchester County, Maryland
Overview
Dorchester County in Maryland covers 16 tracked ZIP records with an average Home Safety Score of A (100/100) across 1 scored records.
2 of 3 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 1 health-based violation appear in the available health breakdown.
← Back to Maryland 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.