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Best Air Quality ZIP Codes in Connecticut

Top 50 best air quality zip codes in america in Connecticut. ZIP-level data from EPA Air Quality Index.

Top 50

#	ZIP Code	City / Suburb	Median AQI
1	06226	Willimantic	34
2	06234	East Brooklyn	34
3	06235	—	34
4	06239	Danielson	34
5	06241	Dayville	34
6	06242	—	34
7	06243	—	34
8	06247	—	34
9	06255	Quinebaug	34
10	06256	Willimantic	34
11	06258	—	34
12	06259	—	34
13	06260	Putnam	34
14	06262	Quinebaug	34
15	06263	—	34
16	06264	—	34
17	06266	South Windham	34
18	06277	Mechanicsville	34
19	06278	Lake Chaffee	34
20	06280	South Windham	34
21	06281	South Woodstock	34
22	06282	Lake Bungee	34
23	06331	—	34
24	06332	—	34
25	06354	Moosup	34
26	06373	—	34
27	06374	Plainfield Village	34
28	06377	—	34
29	06387	Wauregan	34
30	06029	Crystal Lake	37
31	06043	—	37
32	06066	Rockville	37
33	06071	Somers	37
34	06072	—	37
35	06076	Stafford Springs	37
36	06084	Crystal Lake	37
37	06231	—	37
38	06232	—	37
39	06237	—	37
40	06238	Coventry Lake	37
41	06248	—	37
42	06249	—	37
43	06250	Mansfield Center	37
44	06254	—	37
45	06268	Storrs	37
46	06269	Storrs	37
47	06279	—	37
48	06320	New London	37
49	06330	Baltic	37
50	06333	—	37

Methodology

This ranking is based on EPA Air Quality Index data, scoped to Connecticut 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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