EPA Zone Data 2026
WY Radon Levels
View EPA radon zone classifications for every county in WY. Select your county to see detailed risk data, testing recommendations, and mitigation cost estimates.
21
Zone 1
High Risk
High Risk
2
Zone 2
Moderate
Moderate
0
Zone 3
Low Risk
Low Risk
Albany
Zone 1
Big Horn
Zone 1
Campbell
Zone 1
Carbon
Zone 1
Converse
Zone 1
Crook
Zone 1
Fremont
Zone 1
Goshen
Zone 1
Hot Springs
Zone 1
Johnson
Zone 1
Laramie
Zone 1
Lincoln
Zone 1
Natrona
Zone 1
Niobrara
Zone 1
Park
Zone 1
Platte
Zone 2
Sheridan
Zone 1
Sublette
Zone 1
Sweetwater
Zone 1
Teton
Zone 1
Uinta
Zone 1
Washakie
Zone 1
Weston
Zone 2
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