RadonRundown
Home › Alabama
State overview

Radon in Alabama

Of Alabama's 67 counties and county equivalents, EPA places 13 in Zone 1, 33 in Zone 2, 21 in Zone 3. Zones are county-wide predictions; testing is the only way to know your home's level.

Radon in the news

Alabama stories

Headlines link to the original publishers via Google News. Updated 2026-10-27.

All 67 counties

CountyEPA zone
Autauga CountyZone 2
Baldwin CountyZone 3
Barbour CountyZone 2
Bibb CountyZone 2
Blount CountyZone 2
Bullock CountyZone 2
Butler CountyZone 3
Calhoun CountyZone 1
Chambers CountyZone 3
Cherokee CountyZone 2
Chilton CountyZone 2
Choctaw CountyZone 3
Clarke CountyZone 3
Clay CountyZone 1
Cleburne CountyZone 1
Coffee CountyZone 3
Colbert CountyZone 1
Conecuh CountyZone 3
Coosa CountyZone 1
Covington CountyZone 3
Crenshaw CountyZone 3
Cullman CountyZone 2
Dale CountyZone 3
Dallas CountyZone 2
DeKalb CountyZone 2
Elmore CountyZone 2
Escambia CountyZone 3
Etowah CountyZone 2
Fayette CountyZone 2
Franklin CountyZone 1
Geneva CountyZone 3
Greene CountyZone 2
Hale CountyZone 2
Henry CountyZone 3
Houston CountyZone 3
Jackson CountyZone 1
Jefferson CountyZone 2
Lamar CountyZone 2
Lauderdale CountyZone 1
Lawrence CountyZone 1
Lee CountyZone 2
Limestone CountyZone 1
Lowndes CountyZone 2
Macon CountyZone 2
Madison CountyZone 1
Marengo CountyZone 3
Marion CountyZone 2
Marshall CountyZone 2
Mobile CountyZone 3
Monroe CountyZone 3
Montgomery CountyZone 2
Morgan CountyZone 1
Perry CountyZone 2
Pickens CountyZone 2
Pike CountyZone 3
Randolph CountyZone 2
Russell CountyZone 2
Shelby CountyZone 2
St. Clair CountyZone 2
Sumter CountyZone 2
Talladega CountyZone 1
Tallapoosa CountyZone 3
Tuscaloosa CountyZone 2
Walker CountyZone 2
Washington CountyZone 3
Wilcox CountyZone 3
Winston CountyZone 2

Source: EPA radon zones spreadsheet (EPA 402/A-16/001).