GIS Map
RankingsNebraskaCleanest air

Counties with the Cleanest Air in Nebraska

The top 11 of 11 Nebraska counties on GIS Map, ranked by lowest median Air Quality Index, counting only counties that host an EPA air monitor.

#CountyMedian AQI
1Thomas County
12
2Scotts Bluff County
16
3Cass County
17
4Hall County
32
5Washington County
34
6Gage County
35
7Knox County
36
8Sarpy County
37
9Lancaster County
41
10Sioux County
44
11Douglas County
45

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