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Counties with the Highest Radon Potential in Nebraska

The top 25 of 93 Nebraska counties on GIS Map, ranked by EPA radon zone, where zone 1 carries the highest predicted indoor radon potential and zone 3 the lowest.

#CountyEPA radon zone
1Arthur County
3
2Blaine County
3
3Brown County
3
4Cherry County
3
5Garden County
3
6Garfield County
3
7Grant County
3
8Holt County
3
9Hooker County
3
10Lincoln County
3
11Logan County
3
12Loup County
3
13McPherson County
3
14Rock County
3
15Thomas County
3
16Wheeler County
3
17Antelope County
2
18Banner County
2
19Box Butte County
2
20Buffalo County
2
21Chase County
2
22Cheyenne County
2
23Custer County
2
24Dawes County
2
25Dawson County
2

Source: EPA Map of Radon Zones (September 2025). All counties with data are ranked. Estimates carry margins of error.

Citing this page: GIS Map, “Counties with the Highest Radon Potential in Nebraska”, https://gismap.land/rankings/nebraska/highest-radon-counties. Figures from EPA Map of Radon Zones (September 2025).

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