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Counties with the Highest Radon Potential in Nevada

The top 16 of 16 Nevada 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
1Clark County
3
2Churchill County
2
3Elko County
2
4Esmeralda County
2
5Humboldt County
2
6Nye County
2
7Storey County
2
8Washoe County
2
9Douglas County
1
10Eureka County
1
11Lander County
1
12Lincoln County
1
13Lyon County
1
14Mineral County
1
15Pershing County
1
16White Pine County
1

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 Nevada”, https://gismap.land/rankings/nevada/highest-radon-counties. Figures from EPA Map of Radon Zones (September 2025).

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