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Worst Air Quality ZIP Codes in District of Columbia

Top 50 worst air quality zip codes in america in District of Columbia. ZIP-level data from EPA Air Quality Index.

Top 50

#	ZIP Code	City / Suburb	Median AQI
1	20001	Washington	45
2	20002	Washington	45
3	20003	Washington	45
4	20004	Washington	45
5	20005	Washington	45
6	20006	Washington	45
7	20007	Washington	45
8	20008	Washington	45
9	20009	Washington	45
10	20010	Washington	45
11	20011	Washington	45
12	20012	Washington	45
13	20015	Washington	45
14	20016	Washington	45
15	20017	Washington	45
16	20018	Washington	45
17	20019	Washington	45
18	20020	Washington	45
19	20024	Washington	45
20	20032	Washington	45
21	20036	Washington	45
22	20037	Washington	45
23	20045	Washington	45
24	20052	Washington	45
25	20057	Washington	45
26	20059	Washington	45
27	20064	Washington	45
28	20204	Washington	45
29	20220	Washington	45
30	20230	Washington	45
31	20240	Washington	45
32	20245	Washington	45
33	20250	Washington	45
34	20260	Washington	45
35	20317	Washington	45
36	20319	Washington	45
37	20373	Washington	45
38	20388	Washington	45
39	20390	Washington	45
40	20408	Washington	45
41	20415	Washington	45
42	20418	Washington	45
43	20422	Washington	45
44	20427	Washington	45
45	20431	Washington	45
46	20510	Washington	45
47	20515	Washington	45
48	20520	Washington	45
49	20530	Washington	45
50	20535	Washington	45

Methodology

This ranking is based on EPA Air Quality Index data, scoped to District of Columbia ZIP codes. Up to 50 ZIP codes are listed, ordered by median aqi. Data is refreshed periodically. See our methodology page for full details on data sources and update frequency.

Related rankings

Other states

California →Texas →Florida →New York →Illinois →Ohio →

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