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Radon in Hoonah-Angoon Census Area, Alaska

Hoonah-Angoon Census Area has no single zone in EPA's 1993 county list. No laboratory test results are on file for this county (no tests reported, or too few to publish).

Not determined
EPA radon zone (1993 county map)
n/a
median lab test, pCi/L (2008-2017)
n/a
of lab tests at or above 4 pCi/L
n/a
buildings tested by labs, 2008-2017

About the zone: Hoonah-Angoon Census Area was created in 2007 and is not in EPA's county list under any predecessor name. EPA's list puts the neighbouring Haines, Juneau, Sitka, Skagway and Yakutat areas in Zone 3.

Radon test results in Hoonah-Angoon Census Area

Radon test results on file for Hoonah-Angoon Census Area, AK, with state and national comparison
Test resultsPeriodTestsTypical result4 pCi/L or more
Alaska radon program20221median 0.4 pCi/L0%

Test results describe buildings whose owners chose to test and whose results reached the lab or agency, not a random sample; small counts swing widely. State and US shares are computed from county counts and percents. The laboratory data comes from national radon testing laboratories and supplements EPA's zone map.

Radon in nearby counties

CountyEPA zoneLab tests4 pCi/L or more
Haines Borough, AKZone 3n/an/a
Juneau City and Borough, AKZone 360%
Skagway Municipality, AKZone 3n/an/a
Sitka City and Borough, AKZone 310%
Petersburg Borough, AKZone 3n/an/a
Yakutat City and Borough, AKZone 3n/an/a

The six counties with the nearest centers.

What to do about radon in Hoonah-Angoon Census Area

Test the building. EPA recommends fixing a home at 4 pCi/L or more and considering a fix between 2 and 4 pCi/L, and says there is no known safe level of exposure. Alaska's state radon program can point you to testers and test kits.

Buying here? The Environmental Records Report lists this county's radon zone and test results with the flood zone, mapped faults, power lines and federal contamination records near the address.

Check one Hoonah-Angoon Census Area address

Environmental Records Report, $29. PDF and JSON, usually ready in about a minute.

Radon in Hoonah-Angoon Census Area: questions

What is the radon level in Hoonah-Angoon Census Area?

No laboratory results are on file for Hoonah-Angoon Census Area. The county's EPA zone is Not determined. Only a test of the building gives its level.

Is Hoonah-Angoon Census Area in radon Zone 1?

EPA's list has no single zone for it. Hoonah-Angoon Census Area was created in 2007 and is not in EPA's county list under any predecessor name. EPA's list puts the neighbouring Haines, Juneau, Sitka, Skagway and Yakutat areas in Zone 3.

Should I test for radon in Hoonah-Angoon Census Area?

Yes. EPA recommends testing every home whatever its zone: "This map should not be used to determine if individual homes need to be tested." Fix the home at 4 pCi/L or more and consider a fix between 2 and 4 pCi/L; EPA says there is no known safe level of radon exposure.

More for Hoonah-Angoon Census Area

Other free hazard lookups

All of these, plus wetlands, FEMA hazard ratings and the federal contamination lists, are in the Environmental Records Report for any US address ($29).

Radon in every Alaska county · Radon map of every state

Data compiled 2026-10-20. County FIPS 02105. County-level screening information, not a radon measurement of any building.