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Counties with the Cleanest Air in Kentucky

The top 25 of 25 Kentucky counties on GIS Map, ranked by lowest median Air Quality Index, counting only counties that host an EPA air monitor.

#CountyMedian AQI
1Carter County
37
2Daviess County
37
3Edmonson County
38
4Morgan County
38
5Pike County
38
6Warren County
39
7Washington County
39
8Campbell County
40
9Greenup County
40
10Perry County
40
11Fayette County
41
12Hardin County
41
13Pulaski County
41
14Boyd County
42
15Christian County
42
16Livingston County
42
17McCracken County
42
18Boone County
43
19Bullitt County
43
20Jessamine County
43
21Oldham County
43
22Simpson County
43
23Bell County
44
24Hancock County
44
25Jefferson County
50

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

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