Short-term kitempowerDX
Standard Radon Test short-term mail-in radon test kit
- Lab fee included
Method: Passive sampler
In home: 48 to 96 hours
Locations and reports
Radon Levels in Hoonah-Angoon Census Area, Alaska
EPA has no radon zone on file for Hoonah-Angoon Census Area, only 1 radon test from it is on file with CDC (2022), and the only way to know your home's level is to test it.
Data checked By Radon411Methodology
Nearest county
3.1%
Anchorage Municipality, 510 miles
- Anchorage Municipality
- 3.1%
- Alaska
- 11.5%
Share at 4+ pCi/L, 130 tests, 2022
Ground above low
29.7%
49.6 pts below Alaska
- Hoonah-Angoon Census Area
- 29.7%
- Alaska
- 79.2%
Share of land USGS rates moderate or high potential
Tests reported
1
Too few for a share
- Hoonah-Angoon Census Area
- 1
- Needed
- 30
2022
Read a result for Hoonah-Angoon Census Area
Starts at EPA's action level
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 4.0 pCi/L
At or above 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher.
The data
Hoonah-Angoon Census Area, At a glance
Hoonah-Angoon Census Area at a glance
Predicted: EPA radon zone
No EPA zone on file
Radon411 has no EPA radon zone on file for Hoonah-Angoon Census Area, Alaska, and it does not guess one.
A prediction for the whole county, not a measurement of any address: elevated homes occur in all three zones.
USGS geologic potential: Low across 63% of the county's area
Predicted: no EPA zone on file yet
Measured: tests reported to CDC
Radon tests reported for Hoonah-Angoon Census Area, 2022
CDC holds 1 reported test for Hoonah-Angoon Census Area in 2022, a result of 0.4 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Hoonah-Angoon Census Area beside the counties around it is how this page reads it.
What these figures count
Only 1 test was reported to CDC for Hoonah-Angoon Census Area over 2022, and tests are often run on homes being sold or already suspected of a problem: so few describe neither the borough or census area nor this house.
Measured: CDC tracking data. Measured data period: 2022.
Hoonah-Angoon Census Area, Compared
Hoonah-Angoon Census Area radon figures, compared
Calculated by Radon411CDC's largest figure for Hoonah-Angoon Census Area rests on 1 test in 2022, 0 of them at or above 4 pCi/L, so each test moves its share by 100.0 points and no rank or comparison is drawn from it. Results reached as high as 0.4 pCi/L, with a middle value of 0.4 pCi/L.
The nearest counties with a figure are Anchorage Municipality (510 miles away) at 3.1%, Matanuska-Susitna Borough (552 miles away) at 14.3% and Fairbanks North Star Borough (576 miles away) at 19.4%. Pooled across 19 Alaska counties, 11.5% of reported tests reached that level; across every county in the country with a figure, 23.9%.
Statewide for the same period, Fairbanks North Star Borough reported the highest share (19.4%) and Anchorage Municipality the lowest (3.1%). USGS geology rates 63% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Hoonah-Angoon Census Area, Geology
The ground under Hoonah-Angoon Census Area
PredictedUSGS's geologic map splits Hoonah-Angoon Census Area: 63.3% of its land is low radon potential and 29.7% moderate. The map puts 63.3% of Hoonah-Angoon Census Area in the area it calls Pacific Border Ranges and 23.9% in Coast Mountains, with one smaller area beside them. USGS gives the first a radon index of 7, in the low band (5 to 8), and the second 9, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Pacific Border Ranges | Paleozoic and Mesozoic sedimentary and metamorphic rocks with some mafic volcanic and intrusive rocks. | Low | 7 | 63.3% |
| Coast Mountains | Ultramafic through felsic intrusives, Mesozoic mafic volcanic rocks, Mesozoic and Paleozoic sedimentary rocks, schist, gneiss, marble, amphibolite, pelite. | Moderate | 9 | 23.9% |
| Coastal Trough | marine and continental sedimentary rocks; Tertiary volcanic rocks | Moderate | 9 | 5.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Hoonah-Angoon Census Area beside the ground around it
Alaska as a whole has more moderate-potential ground than Hoonah-Angoon Census Area: 79.2% of its land, against 29.7% here. Of the 5 boroughs and census areas that border it, 3 have more moderate-potential ground, Juneau City and Borough the most at 94.7%.
The map rates the ground, not the air in any home.
Local help
Hoonah-Angoon Census Area, Local resources
Radon testing and mitigation in Hoonah-Angoon Census Area
- Alaska's radon programAlaska Division of Geological & Geophysical SurveysAlaska's radon program answers questions about testing, mitigation and the rules in Alaska.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- See the Alaska directoryNo professionals are listed in Alaska yet. The state program can point you to registered testers and mitigators.
What Alaska's program says
- Phone
- 907-269-6401
- paul.goodfellow@alaska.gov
What it means
Hoonah-Angoon Census Area, Questions
Questions about radon in Hoonah-Angoon Census Area
Are radon levels high in Hoonah-Angoon Census Area?
In 2022, 0.0% of the radon tests reported to CDC for Hoonah-Angoon Census Area, Alaska were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.4 pCi/L. Of the 3 nearest counties with a figure, within 576 miles, the share of tests at or above 4 pCi/L runs from 3.1% to 19.4%.
Which counties border Hoonah-Angoon Census Area?
Hoonah-Angoon Census Area borders 5 boroughs and census areas: Haines Borough, Sitka City and Borough, Yakutat City and Borough, Juneau City and Borough and Petersburg Borough.
Products
Hoonah-Angoon Census Area, Products
Testing a home in Hoonah-Angoon Census Area
No CDC figure names Hoonah-Angoon Census Area; the nearest county with one, Anchorage Municipality (510 miles away), reported 3.1% of its tests at or above 4 pCi/L in 2022, the only reading nearby until a test of this home. A short-term kit (2 to 90 days) is the quick first check for a home in Hoonah-Angoon Census Area; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
Monitor
Corentium Home 2 battery digital radon monitor
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- Screen, app
Method: Alpha spectrometry
Readings: Every 60 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Best radon monitors for Hoonah-Angoon Census Area homes, compared
Explore
Hoonah-Angoon Census Area, Bordering boroughs and census areas
Boroughs and census areas bordering Hoonah-Angoon Census Area
Calculated by Radon411- Radon levels in Haines BoroughEPA zone 3
100.0%at or above 4 pCi/L
Median 19.7 pCi/L · 1 test
- Radon levels in Sitka City and BoroughEPA zone 3
0.0%at or above 4 pCi/L
Median 0.2 pCi/L · 3 tests
- Radon levels in Juneau City and BoroughEPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 8 tests
0.0%at or above 4 pCi/L
Median 0.2 pCi/L · 1 test
- Radon levels in Yakutat City and BoroughEPA zone 3
No CDC figure for 2022; its page reads it against its own neighbours.
Hoonah-Angoon Census Area, Cities and towns
Cities and towns in Hoonah-Angoon Census Area
About 2,271 people live in Hoonah-Angoon Census Area by the Census Bureau's estimate for July 1, 2025, 91 fewer than in 2020 (−3.9%). Spread over its land, that is 0.3 people to the square mile. Its largest town, Hoonah, has 960 residents, 42.3% of the total. Together its 5 incorporated places hold 92.8% of those residents; the other 7.2% live outside any of them. CDC's 1 reported test for 2022 work out to 0.4 per 1,000 residents (2025 estimate), close to Alaska's 0.4.
From Hoonah to Pelican, CDC publishes no figure by town: each reads Hoonah-Angoon Census Area's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Hoonah | 960 | +0.3% | 42.3% |
| Gustavus | 610 | −6.7% | 26.9% |
| Angoon | 332 | −7.3% | 14.6% |
| Tenakee Springs | 112 | −6.7% | 4.9% |
| Pelican | 93 | −4.1% | 4.1% |
5 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).
Hoonah-Angoon Census Area, Homes
Homes in Hoonah-Angoon Census Area
Hoonah-Angoon Census Area is a place of houses on their own lots: 84% of its 1,741 homes are detached single-family houses, against 63% across Alaska. Half of its homes were built before 1984, close to Alaska's 1985: 18% date from before 1960 and 16% from 2000 or later. 72% of occupied homes are lived in by their owner (Alaska: 67%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Hoonah-Angoon Census Area | Alaska |
|---|---|---|
| Housing units | 1,741 | 327,610 |
| Detached houses | 84% | 63% |
| In buildings of 5 or more | 2% | 12% |
| Mobile homes | 5% | 4% |
| Built before 1960 | 18% | 8% |
| Built since 2000 | 16% | 25% |
| Middle year built | 1984 | 1985 |
| Owner-occupied | 72% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.