Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Locations and reports
Radon Levels in Kanabec County, Minnesota
EPA puts Kanabec County in Zone 1, its highest radon zone, and only 25 radon tests from it are on file with CDC (2023). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
47.0%
2.8 pts above MN
- Kanabec
- 47.0%
- Minnesota
- 44.2%
366 tests, 2005 to 2014
Median result
3.6pCi/L
Below action level
- Kanabec
- 3.6 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2005 to 2014
Tests reported
366
49th of 87 by tests
- Kanabec
- 366
- Hennepin
- 32,450
Reported to CDC before any fix, 2005 to 2014
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Rank in Minnesota
57 of 87
Middle half
- Kanabec
- 47.0%
- Rock
- 85.0%
By share, of 87 with 30+ tests
Read a result for Kanabec County
Starts at Kanabec County's median, 3.6 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 3.6 pCi/L
Between 2 and 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Kanabec County's median reported result, 2005 to 2014.
The data
Kanabec County, At a glance
Kanabec County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Kanabec County in
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 Kanabec County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 50.0% |
| 2015 | 34.4% |
| 2016 | 33.3% |
| 2017 | 28.6% |
| 2018 | 50.0% |
| 2019 | 32.0% |
| 2020 | 15.4% |
| 2021 | 26.9% |
| 2022 | 41.2% |
| 2023 | 28.0% |
2023: 28.0%. Across these years the share ran from 15.4% to 50.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 25 tests were reported to CDC for Kanabec County over 2023, and tests are often run on homes being sold or already suspected of a problem: so few describe neither the county nor this house.
Measured: CDC tracking data. Figure above: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).
Kanabec County, Compared
Kanabec County radon figures, compared
Calculated by Radon411In Kanabec County, about 5 in 10 reported tests over the 2005 to 2014 laboratory totals (172 of 366) were at or above EPA's action level. Against the national pool of 36.0%, the gap is 11.0 points higher. Across 87 Minnesota counties pooled together, 44.2% of tests reached that level, so Kanabec County runs 2.8 points above its state.
The newest figure, in 2023, counts only 25 tests (28.0% at or above 4 pCi/L), too few to compare, so this reading uses the 366-test figure.
Of 5 neighbours with a figure, none reported a larger share at or above 4 pCi/L; the spread is 17.5% (Isanti County) to 33.8% (Chisago County). By share, Kanabec County is 57th of 87 Minnesota counties with 30 or more tests for the same period.
Year by year, 2014 opened at 50.0% and 2022 closed at 41.2% (down 8.8 points), with 2014 the high at 50.0%. Half the tests came in under 3.6 pCi/L and half over it; the single highest reached 24.2 pCi/L. Below the action level, 88 tests (24.0%) came in under 2 pCi/L, against 26.4% statewide, and 106 tests (29.0%) fell between 2 and 4, against 29.3% statewide.
Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 47.0% share point the same way here. USGS geology rates 99% of the county's land moderate radon potential. CDC also counts 22 tests taken after mitigation in Kanabec County for the same period: tests in homes where a fix was already in.
The busiest year on file was 2014, with 78 tests reported; the quietest, 2017, had 14.
Kanabec CountyMinnesota, pooled
41.2% % of tests31.6% % of tests
| Year | Tests | Kanabec County, at or above 4 pCi/L | Minnesota, pooled |
|---|---|---|---|
| 2014 | 78 | 50.0% | 42.9% |
| 2015 | 64 | 34.4% | 43.6% |
| 2016 | 42 | 33.3% | 37.0% |
| 2020 | 39 | 15.4% | 31.8% |
| 2021 | 52 | 26.9% | 33.1% |
| 2022 | 34 | 41.2% | 31.6% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Kanabec County, State data
Minnesota's own radon test data
MeasuredWhat Minnesota's own agencies publish about radon tests in Kanabec County, with their period. These are not CDC's figures and are never added to them.
MeasuredState figures, not CDC's
What the Minnesota Department of Health reports for Kanabec County
Radon Testing (MN Public Health Data Access Portal): home radon tests reported voluntarily by private laboratories and licensed radon measurement professionals, counted by property. Period: 2016-2025.
Share with one or more tests at or above 4 pCi/L
34.9%
99 properties tested with one or more tests at or above 4 pCi/L
Median result
2.9 pCi/L
Average result
3.8 pCi/L
Tests behind these figures
28 properties tested a year on average
- MDH says these data do not include all of the radon tests conducted in Minnesota.
- Post-mitigation tests are excluded from the averages and the median; the percentages use each property's highest test.
- Each home is unique and can have very different results than a neighbor's home; the only way to know is to test.
- These figures describe tests reported to the Minnesota Department of Health in this area. They count a different set of tests than CDC's figures and are not a reading of any one home.
Measured: Minnesota Department of Health data, 2016-2025.
Kanabec County, Geology
The ground under Kanabec County
PredictedMost of the ground under Kanabec County is one class on USGS's geologic map: 98.7% of its land is moderate radon potential, with 1.3% high. 98.7% of it lies in the area the map calls Superior Upland/Central Lowland-Western Lake Section, to which USGS gives a radon index of 10, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Superior Upland/Central Lowland-Western Lake Section | Glacial deposits derived primarily from volcanic rock. | Moderate | 10 | 98.7% |
| Central Lowland-Till Prairie | Silty and clayey till derived from shale and sandstone. | High | 14 | 1.3% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Kanabec County beside the ground around it
Minnesota as a whole has more high-potential ground than Kanabec County: 61.1% of its land, against 1.3% here. Of the 5 counties that border it, 4 have more high-potential ground, Chisago County the most at 100%.
The map rates the ground, not the air in any home.
Local help
Kanabec County, Local resources
Radon testing and mitigation in Kanabec County
Listed radon businesses with an address in Kanabec County:
- MDH Indoor Air UnitMDH Indoor Air Unit, run by MN Dept. of Health, licenses or certifies radon professionals and states the rule for disclosing radon when a home is sold, and answers questions about testing and mitigation in Minnesota.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
- Professionals in Minnesota255 professionals are listed in Minnesota.
Listed radon professionals by town: Mora, Braham
What Minnesota's program says
- Phone
- 651-201-4601
- health.indoorair@state.mn.us
- Licensing of radon professionals
The Radon Licensing Act requires anyone who performs a radon test or radon mitigation, in a building they do not own or lease, must be licensed by MDH.
- Disclosure when a home is sold or rented
The Minnesota Radon Awareness Act requires specific disclosure and education be provided to potential home buyers during residential real estate transactions in Minnesota.
What it means
Kanabec County, Questions
Questions about radon in Kanabec County
Are radon levels high in Kanabec County?
In 2023, 28.0% of the radon tests reported to CDC for Kanabec County, Minnesota were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.9 pCi/L. Of 87 Minnesota counties with 30 or more tests for the same period, 56 reported a higher share; pooled, the state comes to 44.2%.
Which counties border Kanabec County?
Kanabec County borders 5 counties: Isanti County, Mille Lacs County, Chisago County, Pine County and Aitkin County.
Products
Kanabec County, Products
Testing a home in Kanabec County
In Kanabec County, 47.0% of 366 tests reported to CDC over the 2005 to 2014 laboratory totals reached 4 pCi/L, against 44.2% pooled across Minnesota. In Zone 1 the year-round level in Kanabec County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.
Test kits and monitors3
See every kit and monitor
Monitor
lüft plug-in radon and indoor air quality monitor
- C-NRPP 2024/25: Approved
- Plug-in
- Wi-Fi, Bluetooth
- App only
First reading: Within 90 minutes
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
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Kanabec County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Kanabec County
Explore
Kanabec County, Bordering counties
Counties bordering Kanabec County
Calculated by Radon411- Radon levels in Chisago CountyEPA zone 2
33.8%at or above 4 pCi/L
Median 2.7 pCi/L · 764 tests · 13.2 points below Kanabec County
- Radon levels in Aitkin CountyEPA zone 2
27.1%at or above 4 pCi/L
Median 2.2 pCi/L · 306 tests · 19.9 points below Kanabec County
- Radon levels in Mille Lacs CountyEPA zone 2
25.9%at or above 4 pCi/L
Median 2.1 pCi/L · 247 tests · 21.1 points below Kanabec County
- Radon levels in Pine CountyEPA zone 2
24.2%at or above 4 pCi/L
Median 2.3 pCi/L · 231 tests · 22.8 points below Kanabec County
- Radon levels in Isanti CountyEPA zone 2
17.5%at or above 4 pCi/L
Median 2.1 pCi/L · 401 tests · 29.5 points below Kanabec County
Kanabec County, Cities and towns
Cities and towns in Kanabec County
The Census Bureau estimates 16,628 residents in Kanabec County for July 1, 2025, 574 more than in 2020 (+3.6%). That works out to 32 people per square mile of land. Its largest town, Mora, has 3,763 residents, 22.6% of the total. CDC's 366 reported tests for 2005 to 2014 work out to 22.0 per 1,000 residents (2025 estimate), close to Minnesota's 19.9.
From Mora to Quamba, CDC publishes no figure by town: each reads Kanabec County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Mora | 3,763 | +2.6% | 22.6% |
| Brahamextends beyond Kanabec County | 1,789 | −0.4% | Counted whole |
| Ogilvie | 396 | +1.0% | 2.4% |
| Grasston | 159 | +3.9% | 1.0% |
| Quamba | 107 | +0.9% | 0.6% |
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). A place that extends beyond Kanabec County is counted whole, so it has no share.
Kanabec County, Homes
Homes in Kanabec County
Kanabec County is a place of houses on their own lots: 78% of its 7,793 homes are detached single-family houses, against 66% across Minnesota. Half of its homes were built before 1983, close to Minnesota's 1978: 25% date from before 1960 and 28% from 2000 or later. Owners live in 84% of the occupied homes (Minnesota: 72%), so for most households a test and a fix are their own to order.
| Homes | Kanabec County | Minnesota |
|---|---|---|
| Housing units | 7,793 | 2,519,538 |
| Detached houses | 78% | 66% |
| In buildings of 5 or more | 5% | 19% |
| Mobile homes | 13% | 3% |
| Built before 1960 | 25% | 29% |
| Built since 2000 | 28% | 22% |
| Middle year built | 1983 | 1978 |
| Owner-occupied | 84% | 72% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.