Radon zones in Alaska

Zone 1: 0, Zone 2: 5, Zone 3: 21. A zone is an area estimate; EPA says all homes should be tested.

• Aleutians East Borough Zone 3
• Aleutians West Census Area Zone 3
• Bethel Census Area Zone 3
• Bristol Bay Borough Zone 3
• Denali Borough Zone 3
• Dillingham Census Area Zone 3
• Fairbanks North Star Borough Zone 2
• Haines Borough Zone 3
• Juneau City and Borough Zone 3
• Kenai Peninsula Borough Zone 2
• Ketchikan Gateway Borough Zone 2
• Kodiak Island Borough Zone 3
• Lake and Peninsula Borough Zone 3
• Matanuska-Susitna Borough Zone 2
• Nome Census Area Zone 3
• North Slope Borough Zone 3
• Northwest Arctic Borough Zone 3
• Prince of Wales-Outer Ketchikan Census Area Zone 3
• Sitka City and Borough Zone 3
• Skagway Municipality Zone 3
• Southeast Fairbanks Census Area Zone 2
• Valdez-Cordova Census Area Zone 3
• Wade Hampton Census Area Zone 3
• Wrangell-Petersburg Census Area Zone 3
• Yakutat City and Borough Zone 3
• Yukon-Koyukuk Census Area Zone 3