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RankingsTennesseeWorst air quality

Counties with the Worst Air Quality in Tennessee

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

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

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 Worst Air Quality in Tennessee”, https://gismap.land/rankings/tennessee/worst-air-quality-counties. Figures from EPA Air Quality Index annual summary (2024).

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