Áreas de justicia ambiental en Maryland — 2026

Out of 492 ZIP codes with data in Maryland, these are the highest-ranked areas for ej index. See also: National ZIP Codes with Highest Environmental Justice Concern | All Maryland Rankings

Statistic	Value
ZIP codes ranked	492
Highest value	81/100
Median value	20/100
State	Maryland

Top 100 Worst ZIP Codes

Rank	ZIP Code	City	State	EJ Index	Safety Score
1	21201	Baltimore	MD	81/100	68/100
2	21901	North East	MD	70/100	59/100
3	21917	Colora	MD	68/100	53/100
4	21851	Pocomoke City	MD	62/100	86/100
5	21205	Baltimore	MD	61/100	68/100
6	21217	Baltimore	MD	61/100	68/100
7	21223	Baltimore	MD	61/100	63/100
8	21639	Greensboro	MD	60/100	89/100
9	21562	Westernport	MD	58/100	63/100
10	21224	Baltimore	MD	56/100	63/100
11	21539	Lonaconing	MD	56/100	75/100
12	21557	Rawlings	MD	56/100	82/100
13	21213	Baltimore	MD	54/100	63/100
14	21215	Baltimore	MD	54/100	58/100
15	21216	Baltimore	MD	54/100	63/100
16	21229	Baltimore	MD	54/100	58/100
17	21740	Hagerstown	MD	54/100	63/100
18	20601	Waldorf	MD	52/100	72/100
19	21921	Elkton	MD	52/100	66/100
20	21222	Dundalk	MD	50/100	45/100
21	21784	Sykesville	MD	50/100	57/100
22	21866	Tylerton	MD	50/100	67/100
23	21903	Perryville	MD	50/100	59/100
24	20871	Clarksburg	MD	46/100	64/100
25	21202	Baltimore	MD	46/100	63/100
26	21206	Baltimore	MD	46/100	63/100
27	21218	Baltimore	MD	46/100	63/100
28	21239	Baltimore	MD	46/100	63/100
29	21632	Federalsburg	MD	46/100	88/100
30	21701	Frederick	MD	46/100	59/100
31	21702	Frederick	MD	46/100	64/100
32	20670	Patuxent River	MD	44/100	80/100
33	21619	Chester	MD	44/100	80/100
34	21742	Hagerstown	MD	44/100	58/100
35	21842	Ocean City	MD	44/100	73/100
36	21843	Ocean City	MD	44/100	93/100
37	20650	Leonardtown	MD	42/100	70/100
38	20639	Huntingtown	MD	40/100	50/100
39	20640	Indian Head	MD	40/100	83/100
40	20715	Bowie	MD	40/100	77/100
41	21005	Aberdeen Proving Ground	MD	40/100	40/100
42	21009	Abingdon	MD	40/100	64/100
43	21010	Gunpowder	MD	40/100	40/100
44	21014	Bel Air	MD	40/100	57/100
45	21113	Odenton	MD	40/100	55/100
46	21219	Sparrows Point	MD	40/100	45/100
47	21226	Curtis Bay	MD	40/100	63/100
48	21237	Rosedale	MD	40/100	55/100
49	21913	Cecilton	MD	40/100	56/100
50	20626	Coltons Point	MD	38/100	55/100
51	20794	Jessup	MD	38/100	59/100
52	21034	Darlington	MD	38/100	62/100
53	21225	Brooklyn	MD	38/100	55/100
54	21531	Friendsville	MD	38/100	55/100
55	21613	Cambridge	MD	38/100	79/100
56	21817	Crisfield	MD	38/100	45/100
57	21821	Deal Island	MD	38/100	50/100
58	21822	Eden	MD	38/100	63/100
59	21853	Princess Anne	MD	38/100	73/100
60	21871	Westover	MD	38/100	50/100
61	21203	Baltimore	MD	36/100	93/100
62	21209	Baltimore	MD	36/100	58/100
63	21210	Baltimore	MD	36/100	63/100
64	21211	Baltimore	MD	36/100	58/100
65	21212	Baltimore	MD	36/100	63/100
66	21214	Baltimore	MD	36/100	63/100
67	21230	Baltimore	MD	36/100	58/100
68	21231	Baltimore	MD	36/100	58/100
69	21233	Baltimore	MD	36/100	64/100
70	21235	Baltimore	MD	36/100	64/100
71	21240	Baltimore	MD	36/100	81/100
72	21241	Baltimore	MD	36/100	64/100
73	21250	Baltimore	MD	36/100	64/100
74	21251	Baltimore	MD	36/100	64/100
75	21260	Baltimore	MD	36/100	64/100
76	21263	Baltimore	MD	36/100	64/100
77	21264	Baltimore	MD	36/100	64/100
78	21265	Baltimore	MD	36/100	64/100
79	21268	Baltimore	MD	36/100	64/100
80	21270	Baltimore	MD	36/100	64/100
81	21273	Baltimore	MD	36/100	64/100
82	21274	Baltimore	MD	36/100	64/100
83	21275	Baltimore	MD	36/100	64/100
84	21278	Baltimore	MD	36/100	64/100
85	21279	Baltimore	MD	36/100	64/100
86	21280	Baltimore	MD	36/100	64/100
87	21281	Baltimore	MD	36/100	64/100
88	21282	Baltimore	MD	36/100	64/100
89	21283	Baltimore	MD	36/100	64/100
90	21284	Baltimore	MD	36/100	64/100
91	21285	Baltimore	MD	36/100	64/100
92	21287	Baltimore	MD	36/100	64/100
93	21288	Baltimore	MD	36/100	64/100
94	21289	Baltimore	MD	36/100	64/100
95	21290	Baltimore	MD	36/100	64/100
96	21297	Baltimore	MD	36/100	64/100
97	21298	Baltimore	MD	36/100	68/100
98	21750	Hancock	MD	36/100	63/100
99	21801	Salisbury	MD	36/100	59/100
100	21804	Salisbury	MD	36/100	59/100

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.