Radon Levels in Nevada

17 counties — 9 high risk, 7 moderate, 1 low risk

9
7
1
Zone 1 High (52.9%) Zone 2 Moderate (41.2%) Zone 3 Low (5.9%)

Nevada Radon Zone Map

Counties colored by EPA radon zone. Red = Zone 1, Orange = Zone 2, Green = Zone 3.

Highest-Risk Counties

Carson City50% above action level
Douglas66.7% above action level
EurekaZone 1 — High
LanderZone 1 — High
LincolnZone 1 — High
Lyon36.4% above action level
MineralZone 1 — High
PershingZone 1 — High
White PineZone 1 — High

Check Your Nevada ZIP Code

All 17 Counties — By Radon Risk

CountyEPA ZoneTests% Above 4 pCi/L
Carson City High 12 50%
Douglas High 9 66.7%
Eureka High — —
Lander High — —
Lincoln High — —
Lyon High 11 36.4%
Mineral High — —
Pershing High — —
White Pine High — —
Churchill Moderate 5 —
Elko Moderate 5 —
Esmeralda Moderate — —
Humboldt Moderate — —
Nye Moderate 14 42.9%
Storey Moderate — —
Washoe Moderate 71 38%
Clark Low 294 34.4%

Sources: EPA Map of Radon Zones, CDC Environmental Health Tracking Network

Frequently Asked Questions

How many counties in Nevada have high radon risk?

Nevada has 9 counties classified as EPA Zone 1 (high radon risk), 7 as Zone 2 (moderate), and 1 as Zone 3 (low risk).

Is radon a problem in Nevada?

Nevada has 9 high-risk counties where elevated radon is likely. The EPA recommends all homes in Nevada be tested for radon, regardless of which zone they're in.

How do I check radon levels for my Nevada address?

Enter your ZIP code in the search box above to see your county's EPA radon zone and available testing data. For your specific home's radon level, you'll need a radon test kit.