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RankingsWyomingCleanest air

Counties with the Cleanest Air in Wyoming

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

#CountyMedian AQI
1Uinta County
7
2Carbon County
8
3Washakie County
8
4Park County
13
5Platte County
19
6Lincoln County
31
7Big Horn County
39
8Weston County
39
9Johnson County
40
10Converse County
41
11Natrona County
43
12Campbell County
44
13Sheridan County
44
14Teton County
44
15Laramie County
45
16Sweetwater County
45
17Sublette County
46
18Fremont County
49
19Albany 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 Wyoming”, https://gismap.land/rankings/wyoming/cleanest-air-counties. Figures from EPA Air Quality Index annual summary (2024).

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