Environmental Justice Areas in Maine — 2026

Out of 449 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	449
Highest value	91/100
Median value	30/100
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	04751	Limestone	ME	66/100	59/100
9	04420	Castine	ME	62/100	61/100
10	04254	Livermore Falls	ME	61/100	50/100
11	04401	Bangor	ME	60/100	52/100
12	04640	Hancock	ME	60/100	45/100
13	04649	Jonesport	ME	60/100	59/100
14	04664	Sullivan	ME	60/100	33/100
15	04681	Stonington	ME	60/100	62/100
16	04758	Mars Hill	ME	60/100	51/100
17	04967	Pittsfield	ME	58/100	57/100
18	04634	Franklin	ME	56/100	62/100
19	04479	Sangerville	ME	55/100	65/100
20	04740	Easton	ME	55/100	63/100
21	04037	Fryeburg	ME	54/100	46/100
22	04289	West Paris	ME	54/100	68/100
23	04769	Presque Isle	ME	54/100	60/100
24	04937	Fairfield	ME	54/100	58/100
25	04945	Jackman	ME	54/100	65/100
26	04969	Plymouth	ME	54/100	64/100
27	04424	Danforth	ME	53/100	79/100
28	04459	Mattawamkeag	ME	51/100	69/100
29	03901	Berwick	ME	50/100	59/100
30	04071	Raymond	ME	50/100	43/100
31	04072	Saco	ME	50/100	49/100
32	04102	Portland	ME	50/100	62/100
33	04103	Portland	ME	50/100	62/100
34	04104	Portland	ME	50/100	67/100
35	04109	Portland	ME	50/100	67/100
36	04112	Portland	ME	50/100	62/100
37	04122	Portland	ME	50/100	62/100
38	04123	Portland	ME	50/100	62/100
39	04124	Portland	ME	50/100	62/100
40	04280	Sabattus	ME	50/100	65/100
41	04350	Litchfield	ME	50/100	63/100
42	04402	Bangor	ME	50/100	57/100
43	04443	Guilford	ME	50/100	52/100
44	04451	Kingman	ME	50/100	40/100
45	04496	Winterport	ME	50/100	66/100
46	04578	Wiscasset	ME	50/100	56/100
47	04605	Ellsworth	ME	50/100	55/100
48	04677	Sorrento	ME	50/100	33/100
49	04684	Surry	ME	50/100	56/100
50	04746	Grand Isle	ME	50/100	69/100
51	04843	Camden	ME	50/100	69/100
52	04856	Rockport	ME	50/100	75/100
53	04863	Vinalhaven	ME	50/100	58/100
54	04903	Waterville	ME	50/100	39/100
55	04928	Corinna	ME	50/100	66/100
56	04011	Brunswick	ME	48/100	57/100
57	04230	East Poland	ME	48/100	57/100
58	04239	Jay	ME	48/100	61/100
59	04055	Naples	ME	46/100	38/100
60	04062	Windham	ME	46/100	62/100
61	04092	Westbrook	ME	46/100	62/100
62	04364	Winthrop	ME	46/100	69/100
63	04429	Holden	ME	46/100	67/100
64	04614	Blue Hill	ME	46/100	42/100
65	04658	Milbridge	ME	46/100	79/100
66	04679	Southwest Harbor	ME	46/100	65/100
67	04743	Fort Kent	ME	46/100	46/100
68	04915	Belfast	ME	46/100	76/100
69	04947	Kingfield	ME	46/100	54/100
70	04276	Rumford	ME	45/100	65/100
71	04417	Burlington	ME	45/100	65/100
72	04453	Lagrange	ME	45/100	66/100
73	04471	Orient	ME	45/100	53/100
74	04487	Springfield	ME	45/100	53/100
75	04492	Waite	ME	45/100	53/100
76	04495	Winn	ME	45/100	53/100
77	04497	Wytopitlock	ME	45/100	63/100
78	04635	Frenchboro	ME	45/100	40/100
79	04785	Van Buren	ME	45/100	70/100
80	04920	Bingham	ME	45/100	67/100
81	04263	Leeds	ME	44/100	68/100
82	04282	Turner	ME	44/100	56/100
83	04530	Bath	ME	44/100	76/100
84	04040	Harrison	ME	42/100	64/100
85	04210	Auburn	ME	42/100	49/100
86	04274	Poland	ME	42/100	30/100
87	04421	Castine	ME	42/100	66/100
88	04628	Dennysville	ME	42/100	81/100
89	04652	Lubec	ME	42/100	77/100
90	04655	Machiasport	ME	42/100	76/100
91	04693	Winter Harbor	ME	42/100	60/100
92	04745	Frenchville	ME	42/100	60/100
93	04786	Washburn	ME	42/100	68/100
94	04976	Skowhegan	ME	42/100	55/100
95	04005	Biddeford	ME	40/100	55/100
96	04221	Canton	ME	40/100	59/100
97	04419	Carmel	ME	40/100	51/100
98	04463	Milo	ME	40/100	61/100
99	04572	Waldoboro	ME	40/100	66/100
100	04622	Cherryfield	ME	39/100	83/100

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: 2026-06-04.

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.