Short-term kit
Radon Short Term Test Kit short-term charcoal radon test kit, lab fee included
- Lab fee included
Method: Charcoal
In home: 2 to 7 days
Locations and reports
Radon Levels in Lake and Peninsula Borough, Alaska
EPA puts Lake and Peninsula Borough in Zone 3, its lowest radon zone, and only 1 radon test from it is 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, 301 miles
- Anchorage Municipality
- 3.1%
- Alaska
- 11.5%
Share at 4+ pCi/L, 130 tests, 2022
Ground above low
99.2%
19.9 pts above Alaska
- Lake and Peninsula Borough
- 99.2%
- Alaska
- 79.2%
Share of land USGS rates moderate or high potential
Tests reported
1
Too few for a share
- Lake and Peninsula Borough
- 1
- 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 Lake and Peninsula 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
Lake and Peninsula Borough, At a glance
Lake and Peninsula Borough at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Moderate across 99% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Lake and Peninsula Borough, 2022
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2015 | 0.0% |
| 2021 | 0.0% |
| 2022 | 0.0% |
2022: 0.0%. Across these years the share ran from 0.0% to 0.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 1 test was reported to CDC for Lake and Peninsula 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. Figure above: 2022. Measured data period: 2015 to 2022 (every CDC figure on file).
Lake and Peninsula Borough, Compared
Lake and Peninsula Borough radon figures, compared
Calculated by Radon411CDC's largest figure for Lake and Peninsula Borough 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 0.5 pCi/L, with a middle value of 0.5 pCi/L.
The nearest counties with a figure are Anchorage Municipality (301 miles away) at 3.1%, Matanuska-Susitna Borough (339 miles away) at 14.3% and Fairbanks North Star Borough (529 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%). EPA's 1993 map puts Lake and Peninsula Borough in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 99% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Lake and Peninsula Borough, Geology
The ground under Lake and Peninsula Borough
PredictedUSGS's geologic map puts all of Lake and Peninsula Borough's mapped land in one class: moderate radon potential. The map puts 65.2% of Lake and Peninsula Borough in the area it calls Alaska-Aleutian Province and 34.0% in Central Alaska. USGS gives the first a radon index of 9 and the second 11, both in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Alaska-Aleutian Province | sedimentary and mafic volcanic rocks, glacial deposits; felsic intrusives; metamorphic rocks | Moderate | 9 | 65.2% |
| Central Alaska | Uraniferous granites, felsic intrusives; clastic and carbonate sedimentary rocks; metamorphic, and volcanic rocks. | Moderate | 11 | 34.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Lake and Peninsula Borough beside the ground around it
Lake and Peninsula Borough has more moderate-potential ground than Alaska as a whole: 99.2% of its land against 79.2%. Of the 6 boroughs and census areas that border it, 1 has more moderate-potential ground, Dillingham Census Area the most at 99.4%.
The map rates the ground, not the air in any home.
Local help
Lake and Peninsula Borough, Local resources
Radon testing and mitigation in Lake and Peninsula 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
Lake and Peninsula Borough, Questions
Questions about radon in Lake and Peninsula Borough
Are radon levels high in Lake and Peninsula Borough?
In 2022, 0.0% of the radon tests reported to CDC for Lake and Peninsula Borough, Alaska were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.5 pCi/L. Of the 3 nearest counties with a figure, within 529 miles, the share of tests at or above 4 pCi/L runs from 3.1% to 19.4%.
Which counties border Lake and Peninsula Borough?
Lake and Peninsula Borough borders 6 boroughs and census areas: Bristol Bay Borough, Kodiak Island Borough, Dillingham Census Area, Kenai Peninsula Borough, Aleutians East Borough and Bethel Census Area.
Products
Lake and Peninsula Borough, Products
Testing a home in Lake and Peninsula Borough
No CDC figure names Lake and Peninsula Borough; the nearest county with one, Anchorage Municipality (301 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 Lake and Peninsula Borough.
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
Corentium Home battery digital radon detector
- C-NRPP 2024/25: Approved
- Battery
- Screen
Method: Alpha spectrometry
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Best radon monitors for Lake and Peninsula Borough homes, compared
Explore
Lake and Peninsula Borough, Bordering boroughs and census areas
Boroughs and census areas bordering Lake and Peninsula Borough
Calculated by Radon411- Radon levels in Kenai Peninsula BoroughEPA zone 2
8.3%at or above 4 pCi/L
Median 0.8 pCi/L · 24 tests
- Radon levels in Kodiak Island BoroughEPA zone 3
0.0%at or above 4 pCi/L
Median 0.2 pCi/L · 5 tests
- Radon levels in Dillingham Census AreaEPA zone 3
0.0%at or above 4 pCi/L
Median 1.4 pCi/L · 1 test
- Radon levels in Aleutians East BoroughEPA zone 3
0.0%at or above 4 pCi/L
Median 0.6 pCi/L · 2 tests
- Radon levels in Bristol Bay BoroughEPA zone 3
No CDC figure for 2022; its page reads it against its own neighbours.
- Radon levels in Bethel Census AreaEPA zone 3
No CDC figure for 2022; its page reads it against its own neighbours.
Lake and Peninsula Borough, Cities and towns
Cities and towns in Lake and Peninsula Borough
Lake and Peninsula Borough has been losing residents: from 1,447 in 2020 to 1,357 on July 1, 2025, a fall of 6.2% by the Census Bureau's estimates. Spread over its land, that is 0.1 people to the square mile. No town dominates: Newhalen, the largest, has 154 residents, 11.3% of the total. Together its 6 incorporated places hold 40.8% of those residents; the other 59.2% live outside any of them. Testing is reported here more often than across the state: CDC's 1 reported test for 2022 come to 0.7 for every 1,000 residents (2025 estimate), against 0.4 for Alaska.
From Newhalen to Egegik, CDC publishes no figure by town: each reads Lake and Peninsula Borough's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Newhalen | 154 | −6.1% | 11.3% |
| Nondalton | 122 | −6.2% | 9.0% |
| Port Heiden | 93 | −6.1% | 6.9% |
| Chignik | 87 | −6.5% | 6.4% |
| Pilot Point | 62 | −6.1% | 4.6% |
| Egegik | 35 | −5.4% | 2.6% |
6 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).
Lake and Peninsula Borough, Homes
Homes in Lake and Peninsula Borough
Lake and Peninsula Borough is a place of houses on their own lots: 92% of its 1,355 homes are detached single-family houses, against 63% across Alaska. Half of its homes were built before 1985, close to Alaska's 1985: 7% date from before 1960 and 15% from 2000 or later. 61% 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 | Lake and Peninsula Borough | Alaska |
|---|---|---|
| Housing units | 1,355 | 327,610 |
| Detached houses | 92% | 63% |
| In buildings of 5 or more | under 1% | 12% |
| Mobile homes | 1% | 4% |
| Built before 1960 | 7% | 8% |
| Built since 2000 | 15% | 25% |
| Middle year built | 1985 | 1985 |
| Owner-occupied | 61% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.