Short-term kit
RA400 short-term liquid scintillation radon test kit, lab fee included
- Lab fee included
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
Radon Levels in Wrangell City and Borough, Alaska
EPA has no radon zone on file for Wrangell City and Borough, only 4 radon tests from it are 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, 697 miles
- Anchorage Municipality
- 3.1%
- Alaska
- 11.5%
Share at 4+ pCi/L, 130 tests, 2022
Ground above low
93.1%
13.9 pts above Alaska
- Wrangell City and Borough
- 93.1%
- Alaska
- 79.2%
Share of land USGS rates moderate or high potential
Tests reported
4
Too few for a share
- Wrangell City and Borough
- 4
- Needed
- 30
2022
Read a result for Wrangell City and Borough
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
Wrangell City and Borough, At a glance
Wrangell City and Borough at a glance
Predicted: EPA radon zone
No EPA zone on file
Radon411 has no EPA radon zone on file for Wrangell City and Borough, 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: Moderate across 93% of the county's area
Predicted: no EPA zone on file yet
Measured: tests reported to CDC
Radon tests reported for Wrangell City and Borough, 2022
CDC holds 4 reported tests for Wrangell City and Borough in 2022, with a median of 0.6 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Wrangell City and Borough beside the counties around it is how this page reads it.
What these figures count
Only 4 tests were reported to CDC for Wrangell City and Borough 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.
Wrangell City and Borough, Compared
Wrangell City and Borough radon figures, compared
Calculated by Radon411CDC's largest figure for Wrangell City and Borough rests on 4 tests in 2022, 0 of them at or above 4 pCi/L, so each test moves its share by 25.0 points and no rank or comparison is drawn from it. Results reached as high as 1.1 pCi/L, with a middle value of 0.6 pCi/L.
The nearest counties with a figure are Anchorage Municipality (697 miles away) at 3.1%, Matanuska-Susitna Borough (743 miles away) at 14.3% and Fairbanks North Star Borough (764 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 93% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Wrangell City and Borough, Geology
The ground under Wrangell City and Borough
PredictedUSGS's geologic map puts all of Wrangell City and Borough's mapped land in one class: moderate radon potential. The map puts 90.1% of Wrangell City and Borough in the area it calls Coast Mountains and 3.0% in Coastal Trough. USGS gives both a radon index of 9, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Coast Mountains | Ultramafic through felsic intrusives, Mesozoic mafic volcanic rocks, Mesozoic and Paleozoic sedimentary rocks, schist, gneiss, marble, amphibolite, pelite. | Moderate | 9 | 90.1% |
| Coastal Trough | marine and continental sedimentary rocks; Tertiary volcanic rocks | Moderate | 9 | 3.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Wrangell City and Borough beside the ground around it
Wrangell City and Borough has more moderate-potential ground than Alaska as a whole: 93.1% of its land against 79.2%. Every one of the 2 boroughs and census areas that border it has more moderate-potential ground, Petersburg Borough the most at 93.5%.
The map rates the ground, not the air in any home.
Local help
Wrangell City and Borough, Local resources
Radon testing and mitigation in Wrangell City and Borough
- 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
Wrangell City and Borough, Questions
Questions about radon in Wrangell City and Borough
Are radon levels high in Wrangell City and Borough?
In 2022, 0.0% of the radon tests reported to CDC for Wrangell City and Borough, Alaska were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.6 pCi/L. Of the 3 nearest counties with a figure, within 764 miles, the share of tests at or above 4 pCi/L runs from 3.1% to 19.4%.
Which counties border Wrangell City and Borough?
Wrangell City and Borough borders 2 boroughs and census areas: Ketchikan Gateway Borough and Petersburg Borough.
Products
Wrangell City and Borough, Products
Testing a home in Wrangell City and Borough
No CDC figure names Wrangell City and Borough; the nearest county with one, Anchorage Municipality (697 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 Wrangell City and Borough; 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
Hello Radon C battery radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Screen
Method: Alpha spectrometry
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Best radon monitors for Wrangell City and Borough homes, compared
Explore
Wrangell City and Borough, Bordering boroughs and census areas
Boroughs and census areas bordering Wrangell City and Borough
Calculated by Radon4110.0%at or above 4 pCi/L
Median 0.2 pCi/L · 1 test
No CDC figure for 2022; its page reads it against its own neighbours.
Wrangell City and Borough, Cities and towns
Cities and towns in Wrangell City and Borough
Wrangell City and Borough has been losing residents: from 2,126 in 2020 to 2,007 on July 1, 2025, a fall of 5.6% by the Census Bureau's estimates. Spread over its land, that is 0.8 people to the square mile. Wrangell, its one incorporated place, has 2,007 residents, 100.0% of the total. Testing is reported here more often than across the state: CDC's 4 reported tests for 2022 come to 2.0 for every 1,000 residents (2025 estimate), against 0.4 for Alaska.
Wrangell is the one incorporated place here; CDC publishes no figure by town, so it reads Wrangell City and Borough's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Wrangell | 2,007 | −5.6% | 100.0% |
One incorporated place, 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).
Wrangell City and Borough, Homes
Homes in Wrangell City and Borough
Of Wrangell City and Borough's 1,300 homes, 67% are detached houses, against 63% across Alaska; 11% are in buildings of five or more homes. The homes are older than Alaska's as a whole: half were built before 1975 (1985 for Alaska), and 25% date from before 1960. 57% 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 | Wrangell City and Borough | Alaska |
|---|---|---|
| Housing units | 1,300 | 327,610 |
| Detached houses | 67% | 63% |
| In buildings of 5 or more | 11% | 12% |
| Mobile homes | 9% | 4% |
| Built before 1960 | 25% | 8% |
| Built since 2000 | 11% | 25% |
| Middle year built | 1975 | 1985 |
| Owner-occupied | 57% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.