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 Crow Wing County, Minnesota
EPA puts Crow Wing County in Zone 2, its middle radon zone, and 30.5% of its 177 reported radon tests (2023) were at or above 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
30.5%
4.1 pts below MN
- Crow Wing
- 30.5%
- Minnesota
- 34.6%
177 tests, 2023
Median result
2.7pCi/L
Below action level
- Crow Wing
- 2.7 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2023
Tests reported
177
16th of 62 by tests
- Crow Wing
- 177
- Hennepin
- 6,545
Reported to CDC before any fix, 2023
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Rank in Minnesota
50 of 62
Lowest quarter
- Crow Wing
- 30.5%
- Renville
- 75.7%
By share, of 62 with 30+ tests
Read a result for Crow Wing County
Starts at Crow Wing County's median, 2.7 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 2.7 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. Crow Wing County's median reported result, 2023.
The data
Crow Wing County, At a glance
Crow Wing County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Crow Wing County is a
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 Crow Wing County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 32.6% |
| 2015 | 28.3% |
| 2016 | 21.9% |
| 2017 | 34.1% |
| 2018 | 32.6% |
| 2019 | 36.8% |
| 2020 | 22.5% |
| 2021 | 30.3% |
| 2022 | 26.0% |
| 2023 | 30.5% |
2023: 30.5%. Across these years the share ran from 21.9% to 36.8%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 177 tests reported to CDC for Crow Wing County over 2023, many from homes being sold or already suspected of a problem: they describe the county's reported tests, not this house.
Measured: CDC tracking data. Figure above: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).
Crow Wing County, Compared
Crow Wing County radon figures, compared
Calculated by Radon411In Crow Wing County, about 3 in 10 reported tests in 2023 (54 of 177) were at or above EPA's action level. Against the national pool of 33.4%, the gap is 2.9 points lower. Across 86 Minnesota counties pooled together, 34.6% of tests reached that level, so Crow Wing County runs 4.1 points below its state.
Of 3 neighbours with a figure, 2 reported a larger share at or above 4 pCi/L and 1 a smaller one; the spread is 25.5% (Cass County) to 38.7% (Aitkin County). By share, Crow Wing County is 50th of 62 Minnesota counties with 30 or more tests for the same period.
Year by year, 2014 opened at 32.6% and 2023 closed at 30.5% (down 2.1 points), with 2019 the high at 36.8%. Half the tests came in under 2.7 pCi/L and half over it; the single highest reached 15.3 pCi/L. Below the action level, 50 tests (28.2%) came in under 2 pCi/L, against 36.6% statewide, and 73 tests (41.2%) fell between 2 and 4, against 28.9% statewide.
Zone 2 on EPA's map (predicted average between 2 and 4 pCi/L) and a 30.5% share point the same way here. USGS geology rates 99% of the county's land moderate radon potential.
The busiest year on file was 2015, with 502 tests reported; the quietest, 2019, had 95.
Crow Wing CountyMinnesota, pooled
| Year | Tests | Crow Wing County, at or above 4 pCi/L | Minnesota, pooled |
|---|---|---|---|
| 2014 | 350 | 32.6% | 42.9% |
| 2015 | 502 | 28.3% | 43.6% |
| 2016 | 370 | 21.9% | 37.0% |
| 2017 | 261 | 34.1% | 38.2% |
| 2018 | 374 | 32.6% | 38.3% |
| 2019 | 95 | 36.8% | 36.1% |
| 2020 | 178 | 22.5% | 31.8% |
| 2021 | 218 | 30.3% | 33.1% |
| 2022 | 150 | 26.0% | 31.6% |
| 2023 | 177 | 30.5% | 34.6% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Crow Wing County, State data
Minnesota's own radon test data
MeasuredWhat Minnesota's own agencies publish about radon tests in Crow Wing 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 Crow Wing 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
30.7%
526 properties tested with one or more tests at or above 4 pCi/L
Median result
2.4 pCi/L
Average result
3.3 pCi/L
Tests behind these figures
171 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.
Crow Wing County, Geology
The ground under Crow Wing County
PredictedMost of the ground under Crow Wing County is one class on USGS's geologic map: 99.0% of its land is moderate radon potential, with 1.0% high. The map puts 71.3% of Crow Wing County in the area it calls Superior Upland/Central Lowland-Western Lake Section and 27.7% in Lake Agassiz Plain/Central Lowland-Western Lake Section, with one smaller area beside them. USGS gives both 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 | 71.3% |
| Lake Agassiz Plain/Central Lowland-Western Lake Section | Silty and clayey glacial deposits and lake deposits. | Moderate | 10 | 27.7% |
| Central Lowland-Western Lake Section | Sandy calcareous till derived from carbonate rocks. | High | 14 | 1.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Crow Wing County beside the ground around it
Minnesota as a whole has more high-potential ground than Crow Wing County: 61.1% of its land, against 1.0% here. Of the 4 counties that border it, 3 have more high-potential ground, Cass County the most at 45.3%.
The map rates the ground, not the air in any home.
Local help
Crow Wing County, Local resources
Radon testing and mitigation in Crow Wing County
Listed radon businesses with an address in Crow Wing 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: Brainerd, Pequot Lakes, Deerwood
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
Crow Wing County, Questions
Questions about radon in Crow Wing County
Are radon levels high in Crow Wing County?
In 2023, 30.5% of the radon tests reported to CDC for Crow Wing County, Minnesota were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.7 pCi/L. Of 62 Minnesota counties with 30 or more tests for the same period, 49 reported a higher share; pooled, the state comes to 34.6%.
Which counties border Crow Wing County?
Crow Wing County borders 4 counties: Morrison County, Cass County, Aitkin County and Mille Lacs County.
Products
Crow Wing County, Products
Testing a home in Crow Wing County
In Crow Wing County, 30.5% of 177 tests reported to CDC in 2023 reached 4 pCi/L, against 34.6% pooled across Minnesota. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Crow Wing County; a long-term test tells the year-round average.
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
MonitorPYZYCKYH
RD17 plug-in radon detector with a rechargeable battery and color screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Crow Wing County, Bordering counties
Counties bordering Crow Wing County
Calculated by Radon411- Radon levels in Aitkin CountyEPA zone 2
38.7%at or above 4 pCi/L
Median 3.1 pCi/L · 31 tests · 8.2 points above Crow Wing County
- Radon levels in Morrison CountyEPA zone 2
35.5%at or above 4 pCi/L
Median 3.0 pCi/L · 62 tests · 5.0 points above Crow Wing County
- Radon levels in Mille Lacs CountyEPA zone 2
33.3%at or above 4 pCi/L
Median 2.6 pCi/L · 21 tests · 2.8 points above Crow Wing County
- Radon levels in Cass CountyEPA zone 2
25.5%at or above 4 pCi/L
Median 2.3 pCi/L · 106 tests · 5.0 points below Crow Wing County
Crow Wing County, Cities and towns
Cities and towns in Crow Wing County
The Census Bureau estimates 69,132 residents in Crow Wing County for July 1, 2025, 2,848 more than in 2020 (+4.3%). That works out to 69 people per square mile of land. Its largest town, Brainerd, has 14,428 residents, 20.9% of the total. Together its 18 incorporated places hold 57.5% of those residents; the other 42.5% live outside any of them. Reported testing is thin here: 177 tests over 2023, or 2.6 for every 1,000 residents (2025 estimate), where Minnesota as a whole comes to 3.9.
From Brainerd to Manhattan Beach, CDC publishes no figure by town: each reads Crow Wing County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Brainerd | 14,428 | +0.4% | 20.9% |
| Baxter | 9,217 | +6.3% | 13.3% |
| Breezy Point | 2,771 | +7.4% | 4.0% |
| Pequot Lakes | 2,483 | +3.7% | 3.6% |
| Crosslake | 2,412 | +0.9% | 3.5% |
| Crosby | 2,330 | −1.1% | 3.4% |
| Nisswa | 2,217 | +12.4% | 3.2% |
| Emily | 870 | +3.0% | 1.3% |
| Deerwood | 572 | −1.0% | 0.8% |
| Ironton | 560 | −2.3% | 0.8% |
| Jenkins | 515 | +6.4% | 0.7% |
| Fifty Lakes | 462 | +3.6% | 0.7% |
- Cuyuna
- Garrison
- Trommald
- Riverton
- Fort Ripley
- Manhattan Beach
18 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).
Crow Wing County, Homes
Homes in Crow Wing County
Crow Wing County is a place of houses on their own lots: 81% of its 42,191 homes are detached single-family houses, against 66% across Minnesota. Much of Crow Wing County is recent building: 29% of its homes have gone up since 2000 and the middle year built is 1987, against 1978 for Minnesota. Owners live in 77% of the occupied homes (Minnesota: 72%), so for most households a test and a fix are their own to order.
| Homes | Crow Wing County | Minnesota |
|---|---|---|
| Housing units | 42,191 | 2,519,538 |
| Detached houses | 81% | 66% |
| In buildings of 5 or more | 9% | 19% |
| Mobile homes | 5% | 3% |
| Built before 1960 | 18% | 29% |
| Built since 2000 | 29% | 22% |
| Middle year built | 1987 | 1978 |
| Owner-occupied | 77% | 72% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.