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 Faribault County, Minnesota
EPA puts Faribault County in Zone 1, its highest radon zone, and high results are common there: 70.0% of the 30 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
70.0%
35.4 pts above MN
- Faribault
- 70.0%
- Minnesota
- 34.6%
30 tests, 2023
Median result
8.1pCi/L
Action level reached
- Faribault
- 8.1 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2023
Tests reported
30
62nd of 62 by tests
- Faribault
- 30
- 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
2 of 62
Top quarter
- Faribault
- 70.0%
- Renville
- 75.7%
By share, of 62 with 30+ tests
Read a result for Faribault County
Starts at Faribault County's median, 8.1 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 8.1 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. Faribault County's median reported result, 2023.
The data
Faribault County, At a glance
Faribault County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Faribault 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 Faribault County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 56.5% |
| 2015 | 67.6% |
| 2016 | 57.8% |
| 2017 | 59.2% |
| 2018 | 59.3% |
| 2019 | 55.6% |
| 2020 | 64.8% |
| 2021 | 58.9% |
| 2022 | 45.1% |
| 2023 | 70.0% |
2023: 70.0%. Across these years the share ran from 45.1% to 70.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 30 tests reported to CDC for Faribault 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).
Faribault County, Compared
Faribault County radon figures, compared
Calculated by Radon411More than half: 70.0% of the 30 radon tests reported to CDC for Faribault County in 2023 read at least 4 pCi/L. That places it 2nd of 62 Minnesota counties with 30 or more tests for the same period. That is 35.4 points above the 34.6% pooled from 86 Minnesota counties.
The median result, 8.1 pCi/L, sits above EPA's 4 pCi/L action level, and the top reported result was 19.3 pCi/L. The rest split 20.0% under 2 pCi/L and 10.0% from 2 to 4 (Minnesota: 36.6% and 28.9%). Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 70.0% share point the same way here.
No bordering county with a figure for the same period reported a higher share; the closest is Freeborn County at 67.6%, the lowest Blue Earth County at 32.7%. Statewide for the same period, Renville County reported the highest share (75.7%) and Lake County the lowest (3.8%).
The busiest year on file was 2021, with 73 tests reported; the quietest, 2019, had 18.
Over 9 years of annual figures the share rose 13.5 points, from 56.5% in 2014 to 70.0% in 2023; its peak was 70.0% in 2023. Nationally, every county with a figure for the same period pools to 33.4%; Faribault County sits 36.6 points above it.
Faribault CountyMinnesota, pooled
70.0% % of tests34.6% % of tests
| Year | Tests | Faribault County, at or above 4 pCi/L | Minnesota, pooled |
|---|---|---|---|
| 2014 | 69 | 56.5% | 42.9% |
| 2015 | 71 | 67.6% | 43.6% |
| 2016 | 64 | 57.8% | 37.0% |
| 2017 | 71 | 59.2% | 38.2% |
| 2018 | 54 | 59.3% | 38.3% |
| 2020 | 54 | 64.8% | 31.8% |
| 2021 | 73 | 58.9% | 33.1% |
| 2022 | 51 | 45.1% | 31.6% |
| 2023 | 30 | 70.0% | 34.6% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Faribault County, State data
Minnesota's own radon test data
MeasuredWhat Minnesota's own agencies publish about radon tests in Faribault 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 Faribault 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
63.4%
232 properties tested with one or more tests at or above 4 pCi/L
Median result
4.7 pCi/L
Average result
6.0 pCi/L
Tests behind these figures
37 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.
Faribault County, Geology
The ground under Faribault County
PredictedUSGS's geologic map puts all of Faribault County's mapped land in one class: high radon potential. The map puts 74.3% of Faribault County in the area it calls Central Lowland-Till Prairie and 24.4% in Glacial Lake Deposits, with one smaller area beside them. USGS gives both 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-Till Prairie | Silty and clayey till derived from shale and sandstone. | High | 14 | 74.3% |
| Glacial Lake Deposits | Silt and clay glacial lake deposits. | High | 14 | 24.4% |
| Des Moines Lobe | Calcareous loamy till derived from shale, limestone, dolomite, sandstone. | High | 12 | 1.3% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Faribault County beside the ground around it
Faribault County has more high-potential ground than Minnesota as a whole: 100% of its land against 61.1%. Of the 6 counties that border it, none has as large a share of high-potential ground; Blue Earth County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Faribault County, Local resources
Radon testing and mitigation in Faribault 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.
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
Faribault County, Questions
Questions about radon in Faribault County
Are radon levels high in Faribault County?
In 2023, 70.0% of the radon tests reported to CDC for Faribault County, Minnesota were at or above 4 pCi/L, and the median reported pre-mitigation result was 8.1 pCi/L. Of 62 Minnesota counties with 30 or more tests for the same period, 1 reported a higher share; pooled, the state comes to 34.6%.
Which counties border Faribault County?
Faribault County borders 6 counties: Blue Earth County, MN, Winnebago County, IA, Freeborn County, MN, Waseca County, MN, Martin County, MN and Kossuth County, IA.
Products
Faribault County, Products
Testing a home in Faribault County
In Faribault County, 70.0% of 30 tests reported to CDC in 2023 reached 4 pCi/L, against 34.6% pooled across Minnesota. In Zone 1 the year-round level in Faribault 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
MonitorAEGTEST
HOUND-1011 rechargeable radon detector with a screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
Short-term kit
Air Chek Short-Term radon test kit you hang, lab fee included
- Lab fee included
In home: 72 to 168 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Faribault County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Faribault County
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Faribault County, Bordering counties
Counties bordering Faribault County
Calculated by Radon411- Radon levels in Freeborn County, MNEPA zone 1
67.6%at or above 4 pCi/L
Median 5.1 pCi/L · 71 tests · 2.4 points below Faribault County
- Radon levels in Waseca County, MNEPA zone 1
60.3%at or above 4 pCi/L
Median 5.0 pCi/L · 63 tests · 9.7 points below Faribault County
- Radon levels in Martin County, MNEPA zone 1
43.2%at or above 4 pCi/L
Median 3.5 pCi/L · 81 tests · 26.8 points below Faribault County
- Radon levels in Blue Earth County, MNEPA zone 1
32.7%at or above 4 pCi/L
Median 2.2 pCi/L · 392 tests · 37.3 points below Faribault County
- Radon levels in Winnebago County, IAEPA zone 1
No CDC figure for 2023; its page reads it against its own neighbours.
- Radon levels in Kossuth County, IAEPA zone 1
No CDC figure for 2023; its page reads it against its own neighbours.
Faribault County, Cities and towns
Cities and towns in Faribault County
Faribault County's population has barely moved since 2020: 13,888 residents on July 1, 2025 against 13,899 then, by the Census Bureau's estimates. That works out to 19 people per square mile of land. Its largest town, Blue Earth, has 3,165 residents, 22.8% of the total. Reported testing is thin here: 30 tests over 2023, or 2.2 for every 1,000 residents (2025 estimate), where Minnesota as a whole comes to 3.9.
From Blue Earth to Walters, CDC publishes no figure by town: each reads Faribault County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Blue Earth | 3,165 | −0.1% | 22.8% |
| Wells | 2,395 | −0.5% | 17.2% |
| Winnebago | 1,383 | −0.6% | 10.0% |
| Minnesota Lakeextends beyond Faribault County | 662 | +0.2% | Counted whole |
| Elmore | 544 | −0.9% | 3.9% |
| Kiester | 487 | −0.2% | 3.5% |
| Bricelyn | 351 | −0.8% | 2.5% |
| Frost | 213 | −0.9% | 1.5% |
| Easton | 178 | −1.1% | 1.3% |
| Delavan | 170 | −1.2% | 1.2% |
| Walters | 70 | Level | 0.5% |
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 Faribault County is counted whole, so it has no share.
Faribault County, Homes
Homes in Faribault County
Faribault County is a place of houses on their own lots: 87% of its 6,921 homes are detached single-family houses, against 66% across Minnesota. The homes are older than Minnesota's as a whole: half were built before 1952 (1978 for Minnesota), and 63% date from before 1960. Owners live in 78% of the occupied homes (Minnesota: 72%), so for most households a test and a fix are their own to order.
| Homes | Faribault County | Minnesota |
|---|---|---|
| Housing units | 6,921 | 2,519,538 |
| Detached houses | 87% | 66% |
| In buildings of 5 or more | 7% | 19% |
| Mobile homes | 1% | 3% |
| Built before 1960 | 63% | 29% |
| Built since 2000 | 5% | 22% |
| Middle year built | 1952 | 1978 |
| Owner-occupied | 78% | 72% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.