2026 Rankings

Environmental Justice Concern Areas in Maine — 2026

Last updated: April 13, 2026

339 ZIP codes ranked by EJ Index #1: ZIP 04750 (Limestone, ME) - 91/100
Lead Violations Lowest Score Safest Flood Risk Energy Cost Radon PFAS Reliability EJ Index Homebuyer Risk CO & Gas Safest Gas Remediation Burden Unresolved Violations (by Utility) Water Equity (by Utility)

Out of 339 ZIP codes with data in Maine, these are the highest-ranked areas for ej index. See also: National ZIP Codes with Highest Environmental Justice Concern | All Maine Rankings

Statistic Value
ZIP codes ranked 339
Highest value 91/100
Median value 25/100
State Maine

Top 100 Worst ZIP Codes

Rank ZIP Code City State EJ Index Safety Score
1 04750 Limestone ME 91/100 59/100
2 04101 Portland ME 80/100 62/100
3 04668 Princeton ME 71/100 79/100
4 04414 Brownville ME 68/100 49/100
5 04464 Monson ME 68/100 51/100
6 04901 Waterville ME 68/100 38/100
7 04988 Unity ME 68/100 58/100
8 04254 Livermore Falls ME 61/100 50/100
9 04401 Bangor ME 60/100 52/100
10 04640 Hancock ME 60/100 45/100
11 04649 Jonesport ME 60/100 59/100
12 04664 Sullivan ME 60/100 33/100
13 04681 Stonington ME 60/100 62/100
14 04758 Mars Hill ME 60/100 51/100
15 04967 Pittsfield ME 58/100 57/100
16 04634 Franklin ME 56/100 62/100
17 04479 Sangerville ME 55/100 65/100
18 04740 Easton ME 55/100 63/100
19 04037 Fryeburg ME 54/100 46/100
20 04289 West Paris ME 54/100 68/100
21 04769 Presque Isle ME 54/100 60/100
22 04937 Fairfield ME 54/100 58/100
23 04945 Jackman ME 54/100 65/100
24 04969 Plymouth ME 54/100 64/100
25 04424 Danforth ME 53/100 79/100
26 04459 Mattawamkeag ME 51/100 69/100
27 03901 Berwick ME 50/100 59/100
28 04071 Raymond ME 50/100 43/100
29 04072 Saco ME 50/100 49/100
30 04102 Portland ME 50/100 62/100
31 04103 Portland ME 50/100 62/100
32 04109 Portland ME 50/100 67/100
33 04280 Sabattus ME 50/100 65/100
34 04350 Litchfield ME 50/100 63/100
35 04443 Guilford ME 50/100 52/100
36 04496 Winterport ME 50/100 66/100
37 04578 Wiscasset ME 50/100 56/100
38 04605 Ellsworth ME 50/100 55/100
39 04677 Sorrento ME 50/100 33/100
40 04684 Surry ME 50/100 56/100
41 04746 Grand Isle ME 50/100 69/100
42 04843 Camden ME 50/100 69/100
43 04856 Rockport ME 50/100 75/100
44 04863 Vinalhaven ME 50/100 58/100
45 04928 Corinna ME 50/100 66/100
46 04011 Brunswick ME 48/100 57/100
47 04239 Jay ME 48/100 61/100
48 04055 Naples ME 46/100 38/100
49 04062 Windham ME 46/100 62/100
50 04092 Westbrook ME 46/100 62/100
51 04429 Holden ME 46/100 67/100
52 04614 Blue Hill ME 46/100 42/100
53 04658 Milbridge ME 46/100 79/100
54 04679 Southwest Harbor ME 46/100 65/100
55 04743 Fort Kent ME 46/100 46/100
56 04915 Belfast ME 46/100 76/100
57 04947 Kingfield ME 46/100 54/100
58 04276 Rumford ME 45/100 65/100
59 04417 Burlington ME 45/100 65/100
60 04453 Lagrange ME 45/100 66/100
61 04785 Van Buren ME 45/100 70/100
62 04920 Bingham ME 45/100 67/100
63 04263 Leeds ME 44/100 68/100
64 04282 Turner ME 44/100 56/100
65 04530 Bath ME 44/100 76/100
66 04040 Harrison ME 42/100 64/100
67 04210 Auburn ME 42/100 49/100
68 04274 Poland ME 42/100 30/100
69 04421 Castine ME 42/100 66/100
70 04628 Dennysville ME 42/100 81/100
71 04652 Lubec ME 42/100 77/100
72 04655 Machiasport ME 42/100 76/100
73 04693 Winter Harbor ME 42/100 60/100
74 04745 Frenchville ME 42/100 60/100
75 04786 Washburn ME 42/100 68/100
76 04976 Skowhegan ME 42/100 55/100
77 04221 Canton ME 40/100 59/100
78 04364 Winthrop ME 40/100 69/100
79 04419 Carmel ME 40/100 51/100
80 04463 Milo ME 40/100 61/100
81 04572 Waldoboro ME 40/100 66/100
82 04622 Cherryfield ME 39/100 83/100
83 04961 New Portland ME 39/100 69/100
84 04250 Lisbon ME 38/100 63/100
85 04330 Augusta ME 38/100 57/100
86 04412 Brewer ME 38/100 70/100
87 04416 Bucksport ME 38/100 62/100
88 04427 Corinth ME 38/100 60/100
89 04468 Old Town ME 38/100 60/100
90 04476 Penobscot ME 38/100 65/100

Methodology

The Environmental Justice Index combines environmental risk factors (water violations, lead, flooding) with socioeconomic vulnerability indicators. Higher values indicate communities facing disproportionate environmental burden. This metric highlights areas where infrastructure investment and policy attention are most needed.

Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-04-13.

Frequently Asked Questions

What is the Environmental Justice Index?

The EJ Index identifies communities that face disproportionate environmental hazards relative to their socioeconomic resilience. Areas with high violation counts, aging infrastructure, AND vulnerable populations score highest. These areas need the most infrastructure investment.

Why does environmental justice matter for homebuyers?

High EJ Index areas often have deferred infrastructure maintenance, slower violation resolution, and less access to clean water alternatives. For homebuyers, this means potential hidden costs for water filtration, flood insurance, and home remediation.

Explore More Rankings

How this ranking is calculated, data sources, and limitations: Rankings Methodology →

Related Rankings

Water Safety 2026 EPA violations and water quality scores Lead Risk 2026 Lead service-line indicators and system-level action-level exceedances Infrastructure 2026 Aging pipes, system age and remediation costs
Disclaimer: Rankings are based on EPA, FEMA, and federal agency data. They reflect historical patterns and risk indicators, not necessarily current conditions. For the most current information, contact your local water utility or request a Consumer Confidence Report.

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