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Counties with the Cleanest Air in Missouri

The top 19 of 19 Missouri counties on GIS Map, ranked by lowest median Air Quality Index, counting only counties that host an EPA air monitor.

#CountyMedian AQI
1Taney County
26
2Stoddard County
29
3Monroe County
35
4Boone County
39
5Callaway County
40
6Cedar County
40
7Jefferson County
40
8Clay County
41
9Clinton County
41
10Jasper County
41
11Andrew County
42
12Cass County
42
13Lincoln County
42
14Perry County
42
15Buchanan County
44
16St. Charles County
44
17Greene County
45
18Jackson County
46
19St. Louis County
54

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 Missouri”, https://gismap.land/rankings/missouri/cleanest-air-counties. Figures from EPA Air Quality Index annual summary (2024).

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