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 Wabasha County, Minnesota
EPA puts Wabasha County in Zone 1, its highest radon zone, and high results are common there: 42.3% of the 111 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
42.3%
7.7 pts above MN
- Wabasha
- 42.3%
- Minnesota
- 34.6%
111 tests, 2023
Median result
3.3pCi/L
Below action level
- Wabasha
- 3.3 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2023
Tests reported
111
30th of 62 by tests
- Wabasha
- 111
- 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
35 of 62
Middle half
- Wabasha
- 42.3%
- Renville
- 75.7%
By share, of 62 with 30+ tests
Read a result for Wabasha County
Starts at Wabasha County's median, 3.3 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 3.3 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. Wabasha County's median reported result, 2023.
The data
Wabasha County, At a glance
Wabasha County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Wabasha County in
USGS geologic potential: High across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Wabasha County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 61.5% |
| 2015 | 61.6% |
| 2016 | 53.3% |
| 2017 | 29.7% |
| 2018 | 63.8% |
| 2019 | 68.9% |
| 2020 | 41.0% |
| 2021 | 58.1% |
| 2022 | 57.5% |
| 2023 | 42.3% |
2023: 42.3%. Across these years the share ran from 29.7% to 68.9%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 111 tests reported to CDC for Wabasha 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).
Wabasha County, Compared
Wabasha County radon figures, compared
Calculated by Radon411In Wabasha County, about 4 in 10 reported tests in 2023 (47 of 111) were at or above EPA's action level. Against the national pool of 33.4%, the gap is 8.9 points higher. Across 86 Minnesota counties pooled together, 34.6% of tests reached that level, so Wabasha County runs 7.7 points above its state.
Of 5 neighbours with a figure, 3 reported a larger share at or above 4 pCi/L and 2 a smaller one; the spread is 15.4% (Pepin County, WI) to 53.6% (Buffalo County, WI). By share, Wabasha County is 35th of 62 Minnesota counties with 30 or more tests for the same period.
Year by year, 2014 opened at 61.5% and 2023 closed at 42.3% (down 19.2 points), with 2019 the high at 68.9%. Half the tests came in under 3.3 pCi/L and half over it; the single highest reached 117.8 pCi/L. Below the action level, 36 tests (32.4%) came in under 2 pCi/L, against 36.6% statewide, and 28 tests (25.2%) fell between 2 and 4, against 28.9% statewide.
Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 42.3% share point the same way here. USGS geology rates 100% of the county's land high radon potential.
The busiest year on file was 2014, with 187 tests reported; the quietest, 2019, had 74.
Wabasha CountyMinnesota, pooled
42.3% % of tests34.6% % of tests
| Year | Tests | Wabasha County, at or above 4 pCi/L | Minnesota, pooled |
|---|---|---|---|
| 2014 | 187 | 61.5% | 42.9% |
| 2015 | 185 | 61.6% | 43.6% |
| 2016 | 165 | 53.3% | 37.0% |
| 2017 | 138 | 29.7% | 38.2% |
| 2018 | 94 | 63.8% | 38.3% |
| 2019 | 74 | 68.9% | 36.1% |
| 2020 | 83 | 41.0% | 31.8% |
| 2021 | 86 | 58.1% | 33.1% |
| 2022 | 80 | 57.5% | 31.6% |
| 2023 | 111 | 42.3% | 34.6% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Wabasha County, State data
Minnesota's own radon test data
MeasuredWhat Minnesota's own agencies publish about radon tests in Wabasha 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 Wabasha 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
56.8%
506 properties tested with one or more tests at or above 4 pCi/L
Median result
4.4 pCi/L
Average result
6.2 pCi/L
Tests behind these figures
89 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.
Wabasha County, Geology
The ground under Wabasha County
PredictedUSGS's geologic map puts all of Wabasha County's mapped land in one class: high radon potential. All of it lies in the area the map calls Driftless Section, to which USGS gives a radon index of 12, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Driftless Section | Ordivician carbonates and sandstones. | High | 12 | 99.8% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Wabasha County beside the ground around it
Wabasha County has more high-potential ground than Minnesota as a whole: 100% of its land against 61.1%. Of the 5 counties that border it, none has as large a share of high-potential ground; Goodhue County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Wabasha County, Local resources
Radon testing and mitigation in Wabasha County
Listed radon businesses with an address in Wabasha 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: Wabasha
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
Wabasha County, Questions
Questions about radon in Wabasha County
Are radon levels high in Wabasha County?
In 2023, 42.3% of the radon tests reported to CDC for Wabasha County, Minnesota were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.3 pCi/L. Of 62 Minnesota counties with 30 or more tests for the same period, 34 reported a higher share; pooled, the state comes to 34.6%.
Which counties border Wabasha County?
Wabasha County borders 5 counties: Pepin County, WI, Olmsted County, MN, Buffalo County, WI, Goodhue County, MN and Winona County, MN.
Products
Wabasha County, Products
Testing a home in Wabasha County
In Wabasha County, 42.3% of 111 tests reported to CDC in 2023 reached 4 pCi/L, against 34.6% pooled across Minnesota. In Zone 1 the year-round level in Wabasha 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
MonitorForensics Detectors
FD-65-RADON rechargeable radon detector with a color screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
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
Wabasha County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Wabasha County
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Wabasha County, Bordering counties
Counties bordering Wabasha County
Calculated by Radon411- Radon levels in Buffalo County, WIEPA zone 1
53.6%at or above 4 pCi/L
Median 4.4 pCi/L · 56 tests · 11.3 points above Wabasha County
- Radon levels in Goodhue County, MNEPA zone 1
49.5%at or above 4 pCi/L
Median 3.9 pCi/L · 218 tests · 7.2 points above Wabasha County
- Radon levels in Olmsted County, MNEPA zone 1
46.1%at or above 4 pCi/L
Median 3.7 pCi/L · 854 tests · 3.8 points above Wabasha County
- Radon levels in Winona County, MNEPA zone 1
38.8%at or above 4 pCi/L
Median 3.0 pCi/L · 139 tests · 3.5 points below Wabasha County
- Radon levels in Pepin County, WIEPA zone 1
15.4%at or above 4 pCi/L
Median 1.2 pCi/L · 65 tests · 26.9 points below Wabasha County
Wabasha County, Cities and towns
Cities and towns in Wabasha County
The Census Bureau estimates 21,537 residents in Wabasha County for July 1, 2025, 143 more than in 2020 (+0.7%). That works out to 41 people per square mile of land. Lake City, the largest place on its list (5,306 residents in all), extends beyond Wabasha County, so no share of the total is worked out for it. CDC's 111 reported tests for 2023 work out to 5.2 per 1,000 residents (2025 estimate), close to Minnesota's 3.9.
From Lake City to Minneiska, CDC publishes no figure by town: each reads Wabasha County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Lake Cityextends beyond Wabasha County | 5,306 | +1.1% | Counted whole |
| Plainview | 3,482 | Level | 16.2% |
| Wabasha | 2,599 | +1.2% | 12.1% |
| Elgin | 1,137 | +2.1% | 5.3% |
| Mazeppa | 878 | +0.5% | 4.1% |
| Kellogg | 423 | +1.0% | 2.0% |
| Bellechesterextends beyond Wabasha County | 174 | −0.6% | Counted whole |
| Zumbro Falls | 154 | −1.9% | 0.7% |
| Millville | 145 | −3.3% | 0.7% |
| Hammond | 133 | +1.5% | 0.6% |
| Minneiskaextends beyond Wabasha County | 96 | −1.0% | Counted whole |
11 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 Wabasha County is counted whole, so it has no share.
Wabasha County, Homes
Homes in Wabasha County
Wabasha County is a place of houses on their own lots: 78% of its 10,229 homes are detached single-family houses, against 66% across Minnesota. Half of its homes were built before 1977, close to Minnesota's 1978: 31% date from before 1960 and 26% from 2000 or later. Owners live in 82% of the occupied homes (Minnesota: 72%), so for most households a test and a fix are their own to order.
| Homes | Wabasha County | Minnesota |
|---|---|---|
| Housing units | 10,229 | 2,519,538 |
| Detached houses | 78% | 66% |
| In buildings of 5 or more | 7% | 19% |
| Mobile homes | 7% | 3% |
| Built before 1960 | 31% | 29% |
| Built since 2000 | 26% | 22% |
| Middle year built | 1977 | 1978 |
| Owner-occupied | 82% | 72% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.