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Counties with the Cleanest Air in Oklahoma

The top 21 of 21 Oklahoma counties on GIS Map, ranked by lowest median Air Quality Index, counting only counties that host an EPA air monitor.

#CountyMedian AQI
1Grant County
32
2Mayes County
40
3Jefferson County
42
4Kay County
42
5Comanche County
43
6Pontotoc County
43
7Canadian County
44
8Creek County
44
9Johnston County
44
10Osage County
44
11Sequoyah County
44
12McClain County
46
13Adair County
47
14Dewey County
47
15Washington County
47
16Carter County
48
17Pittsburg County
48
18Cleveland County
51
19Ottawa County
51
20Tulsa County
51
21Oklahoma County
52

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

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