Sagadahoc County, Maine
8 ZIP codes · Avg score 74/100 · Grade B · Updated 2026-07-19
ZipCheckup grade for Sagadahoc: B.
This ZIP looks solid, with a few items worth a quick check.
Water systems in Sagadahoc County serve 8 ZIP codes with few reported safety events.
How Sagadahoc County Compares
How Sagadahoc County Compares
Sagadahoc County scores 17 points above the Maine state average (57/100) and 6 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-07-19
ZIP Code Risk Map
Water Quality Map: Sagadahoc County, Maine
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.1 (asthma 12.3%, diabetes 10.8%)
Estimated additional annual cost per homeowner: $1,094, driven primarily by flood
Infrastructure: 0.42% avg pipe failure probability, 63% of ZIPs at high risk
57.6% 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: $1,094
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
18,076 housing units in Sagadahoc 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 Sagadahoc County
Remediation costs are relatively manageable for most homeowners in Sagadahoc 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 Sagadahoc County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Sagadahoc County
8 community water systems serving Sagadahoc County.
- B
- C
- B
- B
- B
- B
Show all 8 water systems
- B
- B
16 total water systems serve Sagadahoc County.
Systems with the most violations in Sagadahoc County
5 water systems with recorded EPA violations.
- B
- B
- B
- B
- C
All ZIP Codes in Sagadahoc County
8 ZIP codes tracked in Sagadahoc County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 04008 | Bowdoinham | 83 | B | 0 | $335K |
| 2 | 04342 | Dresden | 82 | B | 2 | $237K |
| 3 | 04287 | Bowdoin | 79 | B | 5 | $257K |
| 4 | 04530 | Bath | 76 | B | 1 | $307K |
| 5 | 04086 | Topsham | 75 | B | 11 | $328K |
| 6 | 04357 | Richmond | 70 | B | 13 | $247K |
| 7 | 04548 | Georgetown | 63 | C | 0 | $417K |
| 8 | 04579 | Woolwich | 63 | C | 0 | $250K |
Recommended Buyer Guides for Sagadahoc County
Filtered against federal data, fitted to local risks.
- Best Lead Paint Test Kits — 57.6% of homes built before 1978
- 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 Sagadahoc County, Maine
Overview
Sagadahoc County in Maine covers 8 ZIP codes with an average Home Safety Score of B (74/100).
5 of 8 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← 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.