Somerset County, Maryland
14 ZIP codes · Avg score 57/100 · Grade C · Updated 2026-06-03
Across Somerset County's 14 ZIP codes, water safety results are uneven — a portion of systems carry active or recent violations, while others meet standards without issues.
How Somerset County Compares
How Somerset County Compares
Somerset County scores 4 points below the Maryland state average (61/100) and 11 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Somerset County, Maryland
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.3 (asthma 11.4%, diabetes 13.7%)
Estimated additional annual cost per homeowner: $4,984, driven primarily by sea_level
Infrastructure: 0.415% avg pipe failure probability, 50% of ZIPs at high risk
68.9% 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: $4,984
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
11,113 housing units in Somerset 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 Somerset County
Remediation costs are relatively manageable for most homeowners in Somerset 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 Somerset 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 Somerset County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | HILL WATERWORKS COOPERATIVE | 100 | 18 |
| 2 | Rhodes Point South Waterworks | 100 | 18 |
| 3 | Tylerton Waterwork Cooperative | 100 | 18 |
| 4 | Ewell Waterworks Cooperative | 75 | 18 |
| 5 | Midtown Waterworks Cooperative | 34 | 18 |
9 total water systems serve Somerset County.
All ZIP Codes in Somerset County
14 ZIP codes tracked in Somerset County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 21853 | Princess Anne | 73 | B | 0 | $167K |
| 2 | 21866 | Tylerton | 67 | C | 18 (3 health) | $96K |
| 3 | 21810 | Allen | 63 | C | 0 | $234K |
| 4 | 21814 | Bivalve | 63 | C | 0 | — |
| 5 | 21822 | Eden | 63 | C | 0 | $220K |
| 6 | 21824 | Ewell | 55 | C | 0 | $109K |
| 7 | 21840 | Nanticoke | 55 | C | 0 | — |
| 8 | 21865 | Tyaskin | 55 | C | 0 | $165K |
| 9 | 21867 | Upper Fairmount | 55 | C | 0 | — |
| 10 | 21836 | Manokin | 53 | D | 0 | — |
| 11 | 21890 | Westover | 53 | D | 0 | — |
| 12 | 21821 | Deal Island | 50 | D | 0 | $152K |
| 13 | 21871 | Westover | 50 | D | 0 | $202K |
| 14 | 21817 | Crisfield | 45 | D | 0 | $160K |
Recommended Buyer Guides for Somerset 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 — 68.9% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Somerset County, Maryland
Overview
Somerset County in Maryland covers 14 ZIP codes with an average Home Safety Score of C (57/100).
1 of 14 ZIP codes have recorded EPA violations. 3 health-based violations have been documented.
← Back to Maryland 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.