Environmental Justice Areas in Montana — 2026

Out of 383 ZIP codes with data in Montana, these are the highest-ranked areas for ej index. See also: National ZIP Codes with Highest Environmental Justice Concern | All Montana Rankings

Statistic	Value
ZIP codes ranked	383
Highest value	83/100
Median value	30/100
State	Montana

Top 100 Worst ZIP Codes

Rank	ZIP Code	City	State	EJ Index	Safety Score
1	59923	Libby	MT	83/100	62/100
2	59101	Billings	MT	80/100	65/100
3	59003	Ashland	MT	75/100	33/100
4	59401	Great Falls	MT	70/100	56/100
5	59414	Black Eagle	MT	70/100	68/100
6	59601	Helena	MT	70/100	42/100
7	59035	Fort Smith	MT	68/100	33/100
8	59425	Conrad	MT	68/100	55/100
9	59522	Chester	MT	68/100	64/100
10	59759	Whitehall	MT	68/100	45/100
11	59858	Philipsburg	MT	68/100	33/100
12	59631	Basin	MT	64/100	69/100
13	59855	Pablo	MT	62/100	64/100
14	59038	Hysham	MT	60/100	56/100
15	59270	Sidney	MT	60/100	45/100
16	59301	Miles City	MT	60/100	54/100
17	59457	Lewistown	MT	60/100	40/100
18	59501	Havre	MT	60/100	44/100
19	59524	Dodson	MT	60/100	69/100
20	59526	Harlem	MT	60/100	40/100
21	59542	Turner	MT	60/100	22/100
22	59648	Wolf Creek	MT	60/100	34/100
23	59034	Hardin	MT	58/100	56/100
24	59086	Wilsall	MT	58/100	62/100
25	59701	Butte	MT	58/100	63/100
26	59711	Anaconda	MT	58/100	59/100
27	59801	Missoula	MT	58/100	69/100
28	59241	Hinsdale	MT	55/100	41/100
29	59029	Fromberg	MT	54/100	68/100
30	59032	Grass Range	MT	54/100	67/100
31	59410	Augusta	MT	54/100	68/100
32	59419	Bynum	MT	54/100	62/100
33	59474	Shelby	MT	54/100	64/100
34	59446	Geraldine	MT	52/100	65/100
35	59004	Ashland	MT	50/100	33/100
36	59043	Lame Deer	MT	50/100	40/100
37	59074	Ryegate	MT	50/100	81/100
38	59102	Billings	MT	50/100	70/100
39	59103	Billings	MT	50/100	73/100
40	59104	Billings	MT	50/100	75/100
41	59105	Billings	MT	50/100	70/100
42	59106	Billings	MT	50/100	70/100
43	59107	Billings	MT	50/100	73/100
44	59108	Billings	MT	50/100	73/100
45	59111	Billings	MT	50/100	73/100
46	59112	Billings	MT	50/100	73/100
47	59114	Billings	MT	50/100	73/100
48	59115	Billings	MT	50/100	73/100
49	59116	Billings	MT	50/100	73/100
50	59117	Billings	MT	50/100	73/100
51	59332	Hammond	MT	50/100	40/100
52	59343	Olive	MT	50/100	40/100
53	59416	Brady	MT	50/100	55/100
54	59430	Denton	MT	50/100	45/100
55	59448	Heart Butte	MT	50/100	40/100
56	59523	Chinook	MT	50/100	49/100
57	59602	Helena	MT	50/100	37/100
58	59604	Helena	MT	50/100	47/100
59	59620	Helena	MT	50/100	37/100
60	59623	Helena	MT	50/100	37/100
61	59624	Helena	MT	50/100	37/100
62	59625	Helena	MT	50/100	37/100
63	59626	Helena	MT	50/100	37/100
64	59635	East Helena	MT	50/100	69/100
65	59845	Hot Springs	MT	50/100	54/100
66	59456	Ledger	MT	49/100	52/100
67	59913	Coram	MT	49/100	63/100
68	59230	Glasgow	MT	48/100	39/100
69	59353	Wibaux	MT	48/100	69/100
70	59472	Sand Coulee	MT	48/100	69/100
71	59750	Butte	MT	48/100	59/100
72	59755	Virginia City	MT	48/100	61/100
73	59639	Lincoln	MT	46/100	61/100
74	59020	Cooke City	MT	45/100	63/100
75	59062	Otter	MT	45/100	40/100
76	59225	Frazer	MT	45/100	40/100
77	59255	Poplar	MT	45/100	53/100
78	59322	Cohagen	MT	45/100	40/100
79	59417	Browning	MT	45/100	53/100
80	59444	Galata	MT	45/100	54/100
81	59452	Hobson	MT	45/100	65/100
82	59462	Moccasin	MT	45/100	40/100
83	59463	Monarch	MT	45/100	53/100
84	59521	Box Elder	MT	45/100	40/100
85	59544	Whitewater	MT	45/100	53/100
86	59545	Whitlash	MT	45/100	53/100
87	59547	Zurich	MT	45/100	53/100
88	59831	Dixon	MT	45/100	40/100
89	59935	Troy	MT	45/100	70/100
90	59019	Columbus	MT	44/100	59/100
91	59250	Opheim	MT	44/100	65/100
92	59433	Dutton	MT	44/100	65/100
93	59715	Bozeman	MT	44/100	62/100
94	59829	Darby	MT	44/100	66/100
95	59912	Columbia Falls	MT	44/100	63/100
96	59054	Melstone	MT	42/100	80/100
97	59337	Jordan	MT	42/100	56/100
98	59405	Great Falls	MT	42/100	56/100
99	59464	Moore	MT	42/100	63/100
100	59645	White Sulphur Springs	MT	42/100	62/100

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.