Short-term kitFirst Alert
RD1 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 2 to 4 days
Locations and reports
Radon Levels in Skagway Municipality, Alaska
EPA puts Skagway Municipality in Zone 3, its lowest radon zone, and only 4 radon tests from it are on file with CDC (2022). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Nearest county
3.1%
Anchorage Municipality, 484 miles
- Anchorage Municipality
- 3.1%
- Alaska
- 11.5%
Share at 4+ pCi/L, 130 tests, 2022
Ground above low
99.8%
20.5 pts above Alaska
- Skagway Municipality
- 99.8%
- Alaska
- 79.2%
Share of land USGS rates moderate or high potential
Tests reported
4
Too few for a share
- Skagway Municipality
- 4
- Needed
- 30
2022
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Skagway Municipality
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
Skagway Municipality, At a glance
Skagway Municipality at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Moderate across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Skagway Municipality, 2022
CDC holds 4 reported tests for Skagway Municipality in 2022, with a median of 0.6 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Skagway Municipality beside the counties around it is how this page reads it.
What these figures count
Only 4 tests were reported to CDC for Skagway Municipality 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.
Skagway Municipality, Compared
Skagway Municipality radon figures, compared
Calculated by Radon411CDC's largest figure for Skagway Municipality 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 2.3 pCi/L, with a middle value of 0.6 pCi/L.
The nearest counties with a figure are Anchorage Municipality (484 miles away) at 3.1%, Fairbanks North Star Borough (512 miles away) at 19.4% and Matanuska-Susitna Borough (515 miles away) at 14.3%. 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%). EPA's 1993 map puts Skagway Municipality in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Skagway Municipality, Geology
The ground under Skagway Municipality
PredictedUSGS's geologic map puts all of Skagway Municipality's mapped land in one class: moderate radon potential. All of it lies in the area the map calls Coast Mountains, to which USGS gives 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 | 99.8% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Skagway Municipality beside the ground around it
Skagway Municipality has more moderate-potential ground than Alaska as a whole: 99.8% of its land against 79.2%. Of the one borough or census area that borders it, none has as large a share of moderate-potential ground; Haines Borough comes nearest at 38.2%.
The map rates the ground, not the air in any home.
Local help
Skagway Municipality, Local resources
Radon testing and mitigation in Skagway Municipality
- 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
Skagway Municipality, Questions
Questions about radon in Skagway Municipality
Are radon levels high in Skagway Municipality?
In 2022, 0.0% of the radon tests reported to CDC for Skagway Municipality, 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 515 miles, the share of tests at or above 4 pCi/L runs from 3.1% to 19.4%.
Which counties border Skagway Municipality?
Skagway Municipality borders 1 borough or census area: Haines Borough.
Products
Skagway Municipality, Products
Testing a home in Skagway Municipality
No CDC figure names Skagway Municipality; the nearest county with one, Anchorage Municipality (484 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. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in Skagway Municipality.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Monitor
View Plus radon and air quality monitor
- C-NRPP 2024/25: Approved
- Battery
- Wi-Fi, Bluetooth
- Screen, app
Method: Alpha spectrometry
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Best radon monitors for Skagway Municipality homes, compared
Explore
Skagway Municipality, Bordering boroughs and census areas
Boroughs and census areas bordering Skagway Municipality
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
Skagway Municipality, Residents
Who lives in Skagway Municipality
Skagway Municipality has been losing residents: from 1,237 in 2020 to 1,104 on July 1, 2025, a fall of 10.8% by the Census Bureau's estimates. Spread over its land, that is 2.5 people to the square mile. Testing is reported here more often than across the state: CDC's 4 reported tests for 2022 come to 3.6 for every 1,000 residents (2025 estimate), against 0.4 for Alaska.
Census lists no incorporated place in Skagway Municipality: every home in it reads the county's figures.
Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).
Skagway Municipality, Homes
Homes in Skagway Municipality
Of Skagway Municipality's 656 homes, 61% are detached houses, against 63% across Alaska; 9% are mobile homes. Half of its homes were built before 1984, close to Alaska's 1985: 26% date from before 1960 and 23% from 2000 or later. 66% 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 | Skagway Municipality | Alaska |
|---|---|---|
| Housing units | 656 | 327,610 |
| Detached houses | 61% | 63% |
| In buildings of 5 or more | 7% | 12% |
| Mobile homes | 9% | 4% |
| Built before 1960 | 26% | 8% |
| Built since 2000 | 23% | 25% |
| Middle year built | 1984 | 1985 |
| Owner-occupied | 66% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.