Home Safety Water Safety Lead Risk PFAS Contamination Flood Risk Air Quality Mold Risk Wildfire Risk Earthquake Risk Infrastructure Risk CO & Gas Safety School Safety Superfund Proximity

2026 Rankings

Hancock County, Maine Home Safety Rankings - 48 ZIPs

Explore rankings under Home Safety Score model 4.0.0. Only ZIPs with all four required inputs are ranked; missing evidence is not imputed or reweighted.

Hancock County, Maine (Maine) includes 48 tracked ZIP codes and 9 mapped community water systems; confirm service for a specific address. Below are the water quality rankings for metro ZIPs with all required inputs.

Average Home Safety Grade: C (65/100)

Grade	ZIP Codes	%
A	0	0%
B	0	0%
C	6	100%
D	0	0%
F	0	0%

Top 10 ZIP Codes by Home Safety Score

Rank	ZIP	City	Score	Grade
1	04411	Bradley	67	C
2	04461	Milford	67	C
3	04468	Old Town	67	C
4	04609	Bar Harbor	67	C
5	04634	Franklin	64	C
6	04605	Ellsworth	60	C

10 Riskiest ZIP Codes

Rank	ZIP	City	Score	Grade	Risk Factor
1	04605	Ellsworth	60	C	12 violations
2	04634	Franklin	64	C	4 violations
3	04609	Bar Harbor	67	C	—
4	04468	Old Town	67	C	—
5	04461	Milford	67	C	—
6	04411	Bradley	67	C	—

Most Common Contaminant Violations

Contaminant	Violations	ZIPs Affected
Surface Water Treatment Rule	19	11
Stage 1 DBP Rule	18	12
Haloacetic Acids (HAA5)	15	7
Bromate	12	3
Total Trihalomethanes (TTHM)	10	7
Lead and Copper Rule	3	3
Consumer Confidence Report Rule	3	1

Lead Risk

Average of reported 90th-percentile lead results: 0.0031 mg/L (below EPA action level)
0 of 19 ZIP codes with known status exceed EPA lead action level
25% of housing built before 1950
37% of housing built before 1970

Cities in This Metro

Castine, ME — 2 ZIP codes
Bradley, ME — 1 ZIP code
Bucksport, ME — 1 ZIP code
East Orland, ME — 1 ZIP code
Milford, ME — 1 ZIP code
Old Town, ME — 1 ZIP code
Orland, ME — 1 ZIP code
Penobscot, ME — 1 ZIP code
Ellsworth, ME — 1 ZIP code
Gouldsboro, ME — 1 ZIP code
Bar Harbor, ME — 1 ZIP code
Bernard, ME — 1 ZIP code
Birch Harbor, ME — 1 ZIP code
Blue Hill, ME — 1 ZIP code
Brooklin, ME — 1 ZIP code
Brooksville, ME — 1 ZIP code
Corea, ME — 1 ZIP code
Cranberry Isles, ME — 1 ZIP code
Deer Isle, ME — 1 ZIP code
East Blue Hill, ME — 1 ZIP code
Franklin, ME — 1 ZIP code
Frenchboro, ME — 1 ZIP code
Hancock, ME — 1 ZIP code
Harborside, ME — 1 ZIP code
Hulls Cove, ME — 1 ZIP code
Isle Au Haut, ME — 1 ZIP code
Islesford, ME — 1 ZIP code
Little Deer Isle, ME — 1 ZIP code
Bass Harbor, ME — 1 ZIP code
Mount Desert, ME — 1 ZIP code

...and 17 more cities

All 48 ZIP Codes Ranked

View complete ranking

Rank	ZIP	City	Score	Grade	Violations
1	04411	Bradley	67	C	0
2	04461	Milford	67	C	0
3	04468	Old Town	67	C	0
4	04609	Bar Harbor	67	C	0
5	04634	Franklin	64	C	4
6	04605	Ellsworth	60	C	12
7	04416	Bucksport	—	—	0
8	04421	Castine	—	—	0
9	04472	Orland	—	—	—
10	04476	Penobscot	—	—	0
11	04607	Gouldsboro	—	—	4
12	04612	Bernard	—	—	—
13	04613	Birch Harbor	—	—	—
14	04614	Blue Hill	—	—	—
15	04616	Brooklin	—	—	—
16	04617	Brooksville	—	—	—
17	04624	Corea	—	—	4
18	04625	Cranberry Isles	—	—	5
19	04627	Deer Isle	—	—	—
20	04640	Hancock	—	—	—
21	04642	Harborside	—	—	—
22	04645	Isle Au Haut	—	—	—
23	04646	Islesford	—	—	5
24	04650	Little Deer Isle	—	—	—
25	04653	Bass Harbor	—	—	—
26	04660	Mount Desert	—	—	11
27	04662	Northeast Harbor	—	—	11
28	04664	Sullivan	—	—	4
29	04669	Prospect Harbor	—	—	—
30	04673	Sargentville	—	—	—
31	04674	Seal Cove	—	—	—
32	04675	Seal Harbor	—	—	11
33	04676	Sedgwick	—	—	—
34	04677	Sorrento	—	—	—
35	04679	Southwest Harbor	—	—	5
36	04681	Stonington	—	—	—
37	04684	Surry	—	—	—
38	04685	Swans Island	—	—	—
39	04693	Winter Harbor	—	—	4
40	04922	Burnham	—	—	—
41	04987	Troy	—	—	—

Data Sources

Water quality: EPA SDWIS
Housing: U.S. Census Bureau American Community Survey
Flood: FEMA NFIP
Flood scope: historical NFIP claim records and claim-rated-zone evidence; this is not current property-map coverage.

Reporting periods vary by source; the page metadata identifies this materialization.

Methodology
Model 4.0.0 averages SDWIS water compliance and UCMR5 PFAS within drinking water, then averages drinking water, county radon, and annual AQI as three equal domains. All four inputs are required. Score methodology → · Rankings methodology →

Disclaimer: Scores are based on EPA SDWIS reported data and are not a guarantee of current water safety. Water quality can change. For the most current information, contact your local water utility or request a Consumer Confidence Report.

Explore More

By State

Contaminant Guides

Tools

How to cite this page

APA

ZipCheckup. (2026). Hancock County, Maine Home Safety Rankings - 48 ZIPs. https://zipcheckup.com/rankings/metro/hancock-maine/

BibTeX

@misc{zipcheckup-rankings-metro-hancock-maine,
  author = {{ZipCheckup}},
  title  = {{Hancock County, Maine Home Safety Rankings - 48 ZIPs}},
  year   = {2026},
  url    = {https://zipcheckup.com/rankings/metro/hancock-maine/}
}

Page version: October 2026.

Get safety alerts

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.