COUNTY REPORT ME

Cumberland County, Maine

45 ZIP codes · Avg score 56/100 · Grade C · Updated 2026-07-19

ZipCheckup grade for Cumberland: C.

A mixed picture - some signals here are worth your attention.

Compared to top-scoring counties, Cumberland County's 45 ZIP codes land in the middle tier - some meet standards cleanly, others carry documented violations, and the gap between the best and worst areas is wider than average.

How Cumberland County Compares

Cumberland County56/100
Maine avg57/100
National avg68/100

How Cumberland County Compares

C
County Grade
56/100
Avg Safety Score
45
ZIP Codes
36
Water Systems

Cumberland County scores 1 points below the Maine state average (57/100) and 12 points below the national average (68/100).

Data: EPA SDWIS Last verified: 2026-07-19

C
County Grade
56
Avg Safety Score
45
ZIP Codes
Freeport
Best ZIP: 04032 (70/100)
Naples
Lowest ZIP: 04055 (38/100)
$385K
Median Home Value
$2,404
Avg Remediation (62% of home value)

ZIP Code Risk Map

Water Quality Map: Cumberland County, Maine

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 11.6 (asthma 11.9%, diabetes 9.2%)

Estimated additional annual cost per homeowner: $889, driven primarily by flood

Infrastructure: 0.411% avg pipe failure probability, 40% of ZIPs at high risk

61.5% of homes built before 1978 (lead paint era)

Violation History (2021–2024)

↓ Improving trend

EPA violation counts by year across Cumberland County water systems. Health-based shown in red, total in blue.

2021
2 (2 health)
2022
13 (13 health)
2023
7 (7 health)
2024
2 (2 health)

Peak year: 2022 with 13 violations. Past 5 years: 24 total (24 health-based). Health-based violations are declining versus the prior 2-year window.

Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.

County Health Indicators vs National Average

Asthma 11.9% (national: 8.9%)
Diabetes 9.2% (national: 10.5%)
Obesity 27.2% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1980
Median Build Year
61.5%
Pre-1978 Housing
41%
Pipe Failure Probability
40%
ZIPs at High Infra Risk
Low
Lead Pipe Risk

Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $889

Flood $594/yr
Energy Code Gap $315/yr
Water Infrastructure $170/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

120,990 housing units in Cumberland County

Pre-1940 21%
1940–1959 12%
1960–1979 21%
1980–1999 25%
2000+ 21%

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 Cumberland County

$385K
Median Home Value
$2,404
Est. Remediation Cost
0.6%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Cumberland 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 Cumberland County residents

Asthma 11.9% (US avg: 8.9%)
Diabetes 9.2% (US avg: 11%)
Obesity 27.2% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems serving Cumberland County

8 community water systems serving Cumberland County.

Show all 8 water systems

36 total water systems serve Cumberland County.

Systems with the most violations in Cumberland County

5 water systems with recorded EPA violations.

All ZIP Codes in Cumberland County

45 ZIP codes tracked in Cumberland County.

# ZIP Code City Safety Score Grade Violations Home Value
1 04032 Freeport 70 B 0 $446K
2 04038 Gorham 70 B 1 $426K
3 04039 Gray 68 C 6 (2 health) $333K
4 04104 Portland 67 C 21 (3 health) —
5 04109 Portland 67 C 21 (3 health) $718K
6 04033 Freeport 66 C 0 —
7 04034 Freeport 66 C 0 —
8 04260 New Gloucester 66 C 1 $317K
9 04015 Casco 65 C 1 $285K
10 04084 Standish 65 C 4 $335K
11 04040 Harrison 64 C 4 $244K
12 04062 Windham 62 C 5 (1 health) $371K
13 04092 Westbrook 62 C 5 (1 health) $342K
14 04098 Westbrook 62 C 5 (1 health) —
15 04102 Portland 62 C 21 (3 health) $464K
16 04103 Portland 62 C 21 (3 health) $422K
17 04112 Portland 62 C 21 (3 health) —
18 04122 Portland 62 C 21 (3 health) —
19 04123 Portland 62 C 21 (3 health) —
20 04124 Portland 62 C 21 (3 health) —
21 04070 Scarborough 60 C 7 —
22 04011 Brunswick 57 C 10 $344K
23 04079 Harpswell 57 C 11 $566K
24 04009 Bridgton 56 C 21 $287K
25 04074 Scarborough 54 D 7 $503K
26 04017 Chebeague Island 53 D 0 $510K
27 04021 Cumberland Center 53 D 0 $507K
28 04022 Denmark 53 D 0 $237K
29 04029 Sebago 53 D 0 $273K
30 04078 South Freeport 53 D 0 —
31 04082 South Windham 53 D 0 —
32 04088 Waterford 53 D 0 $243K
33 04097 North Yarmouth 53 D 0 $480K
34 04565 Sebasco Estates 53 D 0 —
35 04096 Yarmouth 52 D 2 $573K
36 04003 Bailey Island 45 D 0 $625K
37 04107 Cape Elizabeth 45 D 0 $660K
38 04562 Phippsburg 45 D 0 $335K
39 04071 Raymond 43 D 13 (7 health) $368K
40 04013 Bustins Island 40 D 0 —
41 04057 North Bridgton 40 D 0 —
42 04069 Pownal 40 D 0 $400K
43 04077 South Casco 40 D 0 —
44 04110 Cumberland Foreside 40 D 0 $955K
45 04055 Naples 38 F 6 (2 health) $257K

Recommended Buyer Guides for Cumberland County

Four sources - EPA, NSF, FEMA, CDC - drive the match.

Deep Dive Reports

Detailed analysis for Cumberland County, Maine

Overview

Cumberland County in Maine covers 45 ZIP codes with an average Home Safety Score of C (56/100).

25 of 45 ZIP codes have recorded EPA violations. 38 health-based violations have been documented.

← Back to Maine water quality report

Data Sources

Updated daily.

Frequently Asked Questions

Is water safe in Cumberland County?
Cumberland County receives a grade of C. Some ZIP codes have recorded violations and residents in affected areas may want to test their water.
How many water systems serve Cumberland County?
Cumberland County is served by 36 public water systems that supply drinking water to residents across 45 ZIP codes.
What is the biggest environmental risk in Cumberland County?
The primary environmental risk factor in Cumberland County is flood. This contributes to an estimated additional annual cost of $889 per homeowner.
How old are homes in Cumberland County?
The median home build year in Cumberland County is 1980. 61.5% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Cumberland County compare to Maine?
Cumberland County has an average water safety score of 56/100, which is below the Maine state average of 57/100.

How to cite this page

APA ZipCheckup. (2026). Cumberland County, ME: Lead Above EPA Limits - 56/100 (2026). https://zipcheckup.com/county/maine/cumberland/
BibTeX 
@misc{zipcheckup-county-maine-cumberland,
  author = {{ZipCheckup}},
  title  = {{Cumberland County, ME: Lead Above EPA Limits - 56/100 (2026)}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/maine/cumberland/}
}

Data as of July 2026.

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