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RankingsTennesseeCleanest air

Counties with the Cleanest Air in Tennessee

The top 23 of 23 Tennessee counties on GIS Map, ranked by lowest median Air Quality Index, counting only counties that host an EPA air monitor.

#CountyMedian AQI
1Dyer County
31
2McMinn County
32
3Montgomery County
32
4Putnam County
32
5Madison County
33
6Maury County
33
7Roane County
35
8Claiborne County
36
9DeKalb County
38
10Lawrence County
38
11Jefferson County
40
12Anderson County
41
13Sullivan County
41
14Wilson County
41
15Loudon County
42
16Williamson County
43
17Sevier County
44
18Sumner County
45
19Blount County
47
20Hamilton County
48
21Knox County
48
22Davidson County
50
23Shelby County
55

Source: EPA Air Quality Index annual summary (2024). All counties with data are ranked. Estimates carry margins of error.

Citing this page: GIS Map, “Counties with the Cleanest Air in Tennessee”, https://gismap.land/rankings/tennessee/cleanest-air-counties. Figures from EPA Air Quality Index annual summary (2024).

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