Somerset County, Maine
24 ZIP codes · Avg score 57/100 · Grade C · Updated 2026-07-19
ZipCheckup grade for Somerset: C.
A mixed picture - some signals here are worth your attention.
Current EPA records place Somerset County in the middle tier for drinking water safety, with 24 ZIP codes showing a range of outcomes.
How Somerset County Compares
How Somerset County Compares
Somerset County scores 0 points above the Maine state average (57/100) and 11 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-07-19
ZIP Code Risk Map
Water Quality Map: Somerset County, Maine
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.7 (asthma 13.5%, diabetes 13.9%)
Estimated additional annual cost per homeowner: $1,058, driven primarily by flood
Infrastructure: 0.416% avg pipe failure probability, 65% of ZIPs at high risk
58.8% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
→ Stable trendEPA violation counts by year across Somerset County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 11 violations. Past 5 years: 14 total (14 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
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,058
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
31,419 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 serving Somerset County
8 community water systems serving Somerset County.
- C
- C
- D
- C
- B
- C
Show all 8 water systems
- C
- D
20 total water systems serve Somerset County.
Systems with the most violations in Somerset County
5 water systems with recorded EPA violations.
- C
- C
- C
- C
- C
All ZIP Codes in Somerset County
24 ZIP codes tracked in Somerset County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 04930 | Dexter | 70 | B | 1 | $159K |
| 2 | 04943 | Hartland | 70 | B | 0 | $144K |
| 3 | 04961 | New Portland | 69 | C | 2 | $146K |
| 4 | 04920 | Bingham | 67 | C | 7 | $109K |
| 5 | 04924 | Canaan | 66 | C | 1 | $152K |
| 6 | 04965 | Palmyra | 66 | C | 1 | $124K |
| 7 | 04979 | Solon | 66 | C | 1 | $180K |
| 8 | 04945 | Jackman | 65 | C | 4 (4 health) | $149K |
| 9 | 04954 | New Portland | 65 | C | 2 | — |
| 10 | 04957 | Norridgewock | 65 | C | 0 | $187K |
| 11 | 04911 | Anson | 63 | C | 2 | $105K |
| 12 | 04937 | Fairfield | 58 | C | 14 (2 health) | $150K |
| 13 | 04967 | Pittsfield | 57 | C | 3 (2 health) | $145K |
| 14 | 04944 | Hinckley | 56 | C | 5 | — |
| 15 | 04976 | Skowhegan | 55 | C | 6 | $159K |
| 16 | 04925 | Caratunk | 53 | D | 0 | $515K |
| 17 | 04942 | Harmony | 53 | D | 0 | $175K |
| 18 | 04950 | Madison | 53 | D | 0 | $154K |
| 19 | 04971 | Saint Albans | 53 | D | 0 | $186K |
| 20 | 04958 | North Anson | 45 | D | 0 | $150K |
| 21 | 04478 | Rockwood | 40 | D | 0 | $369K |
| 22 | 04912 | Athens | 40 | D | 0 | $139K |
| 23 | 04926 | China Village | 40 | D | 0 | — |
| 24 | 04978 | Smithfield | 40 | D | 0 | $231K |
Recommended Buyer Guides for Somerset County
Federal and certification sources drive the ordering: EPA monitoring data, NSF certifications, FEMA flood maps, and CDC lead guidance - guides surface only when county data warrants them.
- Best Lead Paint Test Kits — 58.8% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in 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 Somerset County, Maine
Overview
Somerset County in Maine covers 24 ZIP codes with an average Home Safety Score of C (57/100).
13 of 24 ZIP codes have recorded EPA violations. 8 health-based violations have been documented.
← Back to Maine 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.