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State overview
Radon in Nevada
Of Nevada's 17 counties and county equivalents, EPA places 9 in Zone 1, 7 in Zone 2, 1 in Zone 3. Zones are county-wide predictions; testing is the only way to know your home's level.
Radon in the news
Nevada stories
- University of Nevada, Reno to provide free radon test kitsUniversity of Nevada, Reno · 2026-01-07
- Nevada faces high radon risk, experts urge awareness during action monthKSNV · 2026-01-05
- New radon monitors at Nevada Extension offices provide fast home testingKTVN · 2025-11-12
- Radon detected in 13% of Nevada homesPahrump Valley Times · 2023-01-06
- UNR extensions offering free radon test kits for Nevada residentsKSNV · 2023-01-05
Headlines link to the original publishers via Google News. Updated 2026-10-27.
All 17 counties
| County | EPA zone |
|---|---|
| Carson City | Zone 1 |
| Churchill County | Zone 2 |
| Clark County | Zone 3 |
| Douglas County | Zone 1 |
| Elko County | Zone 2 |
| Esmeralda County | Zone 2 |
| Eureka County | Zone 1 |
| Humboldt County | Zone 2 |
| Lander County | Zone 1 |
| Lincoln County | Zone 1 |
| Lyon County | Zone 1 |
| Mineral County | Zone 1 |
| Nye County | Zone 2 |
| Pershing County | Zone 1 |
| Storey County | Zone 2 |
| Washoe County | Zone 2 |
| White Pine County | Zone 1 |
Source: EPA radon zones spreadsheet (EPA 402/A-16/001).