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
Locations and reports
Radon Levels in Hubbard County, Minnesota
EPA puts Hubbard County in Zone 1, its highest radon zone, and high results are common there: 46.0% of the 63 radon tests reported to CDC (2023) came back 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
46.0%
11.4 pts above MN
- Hubbard
- 46.0%
- Minnesota
- 34.6%
63 tests, 2023
Median result
3.8pCi/L
Below action level
- Hubbard
- 3.8 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2023
Tests reported
63
43rd of 62 by tests
- Hubbard
- 63
- Hennepin
- 6,545
Reported to CDC before any fix, 2023
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
29 of 62
Middle half
- Hubbard
- 46.0%
- Renville
- 75.7%
By share, of 62 with 30+ tests
Read a result for Hubbard County
Starts at Hubbard County's median, 3.8 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 3.8 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. Hubbard County's median reported result, 2023.
The data
Hubbard County, At a glance
Hubbard County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Hubbard County in
USGS geologic potential: High across 99% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Hubbard County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 34.7% |
| 2015 | 42.1% |
| 2016 | 32.9% |
| 2017 | 50.5% |
| 2018 | 40.0% |
| 2019 | 48.0% |
| 2020 | 35.5% |
| 2021 | 34.5% |
| 2022 | 19.6% |
| 2023 | 46.0% |
2023: 46.0%. Across these years the share ran from 19.6% to 50.5%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 63 tests reported to CDC for Hubbard 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).
Hubbard County, Compared
Hubbard County radon figures, compared
Calculated by Radon411In Hubbard County, about 5 in 10 reported tests in 2023 (29 of 63) were at or above EPA's action level. Against the national pool of 33.4%, the gap is 12.6 points higher. Across 86 Minnesota counties pooled together, 34.6% of tests reached that level, so Hubbard County runs 11.4 points above its state.
Of 3 neighbours with a figure, 1 reported a larger share at or above 4 pCi/L and 2 a smaller one; the spread is 25.5% (Cass County) to 52.2% (Becker County). By share, Hubbard County is 29th of 62 Minnesota counties with 30 or more tests for the same period.
Year by year, 2014 opened at 34.7% and 2023 closed at 46.0% (up 11.3 points), with 2017 the high at 50.5%. Half the tests came in under 3.8 pCi/L and half over it; the single highest reached 19.2 pCi/L. Below the action level, 12 tests (19.0%) came in under 2 pCi/L, against 36.6% statewide, and 22 tests (34.9%) fell between 2 and 4, against 28.9% statewide.
Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 46.0% share point the same way here. USGS geology rates 99% of the county's land high radon potential.
The busiest year on file was 2018, with 115 tests reported; the quietest, 2019, had 50.
Hubbard CountyMinnesota, pooled
46.0% % of tests34.6% % of tests
| Year | Tests | Hubbard County, at or above 4 pCi/L | Minnesota, pooled |
|---|---|---|---|
| 2014 | 101 | 34.7% | 42.9% |
| 2015 | 114 | 42.1% | 43.6% |
| 2016 | 79 | 32.9% | 37.0% |
| 2017 | 99 | 50.5% | 38.2% |
| 2018 | 115 | 40.0% | 38.3% |
| 2019 | 50 | 48.0% | 36.1% |
| 2020 | 62 | 35.5% | 31.8% |
| 2021 | 55 | 34.5% | 33.1% |
| 2022 | 51 | 19.6% | 31.6% |
| 2023 | 63 | 46.0% | 34.6% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Hubbard County, State data
Minnesota's own radon test data
MeasuredWhat Minnesota's own agencies publish about radon tests in Hubbard 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 Hubbard 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
39.2%
270 properties tested with one or more tests at or above 4 pCi/L
Median result
3.1 pCi/L
Average result
3.8 pCi/L
Tests behind these figures
69 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.
Hubbard County, Geology
The ground under Hubbard County
PredictedMost of the ground under Hubbard County is one class on USGS's geologic map: 99.0% of its land is high radon potential, with 1.0% moderate. 99.0% of it lies in the area the map calls Central Lowland-Western Lake Section, to which USGS gives a radon index of 14, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Central Lowland-Western Lake Section | Sandy calcareous till derived from carbonate rocks. | High | 14 | 99.0% |
| Lake Agassiz Plain/Central Lowland-Western Lake Section | Silty and clayey glacial deposits and lake deposits. | Moderate | 10 | 1.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Hubbard County beside the ground around it
Hubbard County has more high-potential ground than Minnesota as a whole: 99.0% of its land against 61.1%. Of the 5 counties that border it, 1 has more high-potential ground, Becker County the most at 100%.
The map rates the ground, not the air in any home.
Local help
Hubbard County, Local resources
Radon testing and mitigation in Hubbard County
Listed radon businesses with an address in Hubbard 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: Nevis, Laporte
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
Hubbard County, Questions
Questions about radon in Hubbard County
Are radon levels high in Hubbard County?
In 2023, 46.0% of the radon tests reported to CDC for Hubbard County, Minnesota were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.8 pCi/L. Of 62 Minnesota counties with 30 or more tests for the same period, 28 reported a higher share; pooled, the state comes to 34.6%.
Which counties border Hubbard County?
Hubbard County borders 5 counties: Cass County, Becker County, Wadena County, Clearwater County and Beltrami County.
Products
Hubbard County, Products
Testing a home in Hubbard County
In Hubbard County, 46.0% of 63 tests reported to CDC in 2023 reached 4 pCi/L, against 34.6% pooled across Minnesota. In Zone 1 the year-round level in Hubbard 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
Wave Radon battery smart radon monitor
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- App only
Method: Alpha spectrometry
Short-term kitFirst Alert
RD1 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 2 to 4 days
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Hubbard County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Hubbard County
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Hubbard County, Bordering counties
Counties bordering Hubbard County
Calculated by Radon411- Radon levels in Clearwater CountyEPA zone 2
54.5%at or above 4 pCi/L
Median 4.7 pCi/L · 11 tests · 8.5 points above Hubbard County
- Radon levels in Becker CountyEPA zone 1
52.2%at or above 4 pCi/L
Median 4.1 pCi/L · 46 tests · 6.2 points above Hubbard County
- Radon levels in Beltrami CountyEPA zone 2
40.7%at or above 4 pCi/L
Median 3.0 pCi/L · 54 tests · 5.3 points below Hubbard County
- Radon levels in Wadena CountyEPA zone 1
40.0%at or above 4 pCi/L
Median 2.8 pCi/L · 15 tests · 6.0 points below Hubbard County
- Radon levels in Cass CountyEPA zone 2
25.5%at or above 4 pCi/L
Median 2.3 pCi/L · 106 tests · 20.5 points below Hubbard County
Hubbard County, Cities and towns
Cities and towns in Hubbard County
The Census Bureau estimates 22,369 residents in Hubbard County for July 1, 2025, 974 more than in 2020 (+4.6%). That works out to 24 people per square mile of land. No town dominates: Park Rapids, the largest, has 4,447 residents, 19.9% of the total. Together its 4 incorporated places hold 24.2% of those residents; the other 75.8% live outside any of them. CDC's 63 reported tests for 2023 work out to 2.8 per 1,000 residents (2025 estimate), close to Minnesota's 3.9.
From Park Rapids to Laporte, CDC publishes no figure by town: each reads Hubbard County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Park Rapids | 4,447 | +6.7% | 19.9% |
| Akeley | 423 | +5.2% | 1.9% |
| Nevis | 393 | +4.0% | 1.8% |
| Laporte | 148 | +7.2% | 0.7% |
4 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).
Hubbard County, Homes
Homes in Hubbard County
Hubbard County is a place of houses on their own lots: 83% of its 14,760 homes are detached single-family houses, against 66% across Minnesota. Half of its homes were built before 1985, close to Minnesota's 1978: 20% date from before 1960 and 27% from 2000 or later. Owners live in 83% of the occupied homes (Minnesota: 72%), so for most households a test and a fix are their own to order.
| Homes | Hubbard County | Minnesota |
|---|---|---|
| Housing units | 14,760 | 2,519,538 |
| Detached houses | 83% | 66% |
| In buildings of 5 or more | 6% | 19% |
| Mobile homes | 10% | 3% |
| Built before 1960 | 20% | 29% |
| Built since 2000 | 27% | 22% |
| Middle year built | 1985 | 1978 |
| Owner-occupied | 83% | 72% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.