Short-term kit
Air Chek Short-Term radon test kit you hang, lab fee included
- Lab fee included
In home: 72 to 168 hours
Locations and reports
Radon Levels in Huron County, Michigan
EPA puts Huron County in Zone 3, its lowest radon zone, and 26.5% of its 260 reported radon tests (2008 to 2017, laboratory totals) 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
26.5%
0.4 pts below MI
- Huron
- 26.5%
- Michigan
- 26.9%
260 tests, 2008 to 2017
Median result
1.9pCi/L
Below action level
- Huron
- 1.9 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
260
61st of 82 by tests
- Huron
- 260
- Oakland
- 16,224
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Rank in Michigan
23 of 82
Middle half
- Huron
- 26.5%
- Lenawee
- 56.7%
By share, of 82 with 30+ tests
Read a result for Huron County
Starts at Huron County's median, 1.9 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 1.9 pCi/L
Below 2 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Huron County's median reported result, 2008 to 2017.
The data
Huron County, At a glance
Huron County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 77% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Huron County, 2008 to 2017, laboratory
Under 2 pCi/L: 50%2 to 4 pCi/L: 23%4 pCi/L and above: 27%
Of 260 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 131 | 50.4% |
| 2 to 4 pCi/L | 60 | 23.1% |
| 4 pCi/L and above | 69 | 26.5% |
What these figures count
These are the 260 tests reported to CDC for Huron County over 2008 to 2017 (laboratory totals), 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: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Huron County, Compared
Huron County radon figures, compared
Calculated by Radon411Huron County's 260 reported tests over the 2008 to 2017 laboratory totals had a middle value of 1.9 pCi/L and a maximum of 113.8 pCi/L, and 26.5% reached 4 pCi/L. Michigan as a whole (83 Michigan counties, pooled) comes to 26.9%: 0.4 points higher than here.
Among its state's counties it ranks 23rd of 82 Michigan counties with 30 or more tests for the same period. Statewide for the same period, Lenawee County reported the highest share (56.7%) and Muskegon County the lowest (3.2%).
Below the action level, 131 tests (50.4%) came in under 2 pCi/L, against 46.4% statewide, and 60 tests (23.1%) fell between 2 and 4, against 26.7% statewide. CDC's ten-year totals for Huron County went from 148 tests (2005 to 2014) to 260 (2008 to 2017), the share going from 26.4% to 26.5%.
EPA's 1993 zone map puts Huron County in Zone 3, a predicted county average under 2 pCi/L. USGS geology rates 77% of the county's land low radon potential.
Next door, the shares run from 16.6% in Sanilac County to 35.5% in Tuscola County, with Sanilac County below Huron County.
CDC also counts 11 tests taken after mitigation in Huron County for the same period: tests in homes where a fix was already in.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Huron County, State data
Michigan's own radon test data
MeasuredWhat Michigan's own agencies publish about radon tests in Huron County, with their period. These are not CDC's figures and are never added to them.
MeasuredState figures, not CDC's
What Michigan EGLE reports for the ZIP codes in Huron County
Michigan EGLE publishes its figures by ZIP code, not by county. These are the 17 ZIP codes that lie wholly or partly in Huron County, each with the state's own figures for it. Period: About 10 years to 2026-05-15.
| ZIP code | What the state reports |
|---|---|
| 48413 | 36% greater than 4 pCi/L, median 2.6 pCi/L, 94 tests |
| 48432 | 0% greater than 4 pCi/L, median 1.5 pCi/L, 9 tests |
| 48441 | 19% greater than 4 pCi/L, median 1.7 pCi/L, 36 tests |
| 48445 | 22% greater than 4 pCi/L, median 2.0 pCi/L, 18 tests |
| 48456 | 4 tests, figures not shown |
| 48467 | 5% greater than 4 pCi/L, median 0.8 pCi/L, 20 tests |
| 48468 | 36% greater than 4 pCi/L, median 1.9 pCi/L, 14 tests |
| 48470 | 18% greater than 4 pCi/L, median 0.7 pCi/L, 11 tests |
| 48475 | 48% greater than 4 pCi/L, median 3.7 pCi/L, 42 tests |
| 48720 | 17% greater than 4 pCi/L, median 1.2 pCi/L, 6 tests |
| 48725 | 0% greater than 4 pCi/L, median 0.5 pCi/L, 14 tests |
| 48726 | 43% greater than 4 pCi/L, median 3.5 pCi/L, 28 tests |
| 48731 | 18% greater than 4 pCi/L, median 1.7 pCi/L, 17 tests |
| 48754 | 4 tests, figures not shown |
| 48755 | 14% greater than 4 pCi/L, median 1.1 pCi/L, 21 tests |
| 48759 | 25% greater than 4 pCi/L, median 2.7 pCi/L, 20 tests |
| 48767 | 6% greater than 4 pCi/L, median 1.3 pCi/L, 17 tests |
- EGLE's figures cover first-time tests only, from organizations willing to provide data.
- EGLE does not publish figures for a ZIP code with fewer than 5 test results.
- EGLE says the map is not intended to decide whether a home should be tested: all homes should be tested.
- ZIP code boundaries are postal delivery areas, not legal or administrative boundaries.
- A ZIP code that crosses the county line is listed whole; its figures cover all of it.
Measured: Michigan EGLE data, About 10 years to 2026-05-15.
Huron County, Geology
The ground under Huron County
PredictedMost of the ground under Huron County is one class on USGS's geologic map: 77.4% of its land is low radon potential, with 21.2% moderate. The map puts 77.4% of Huron County in the area it calls Glacial Lakes and 21.2% in South-Central Michigan Basin. USGS gives the first a radon index of 7, in the low band (5 to 8), and the second 10, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Glacial Lakes | Silt and clay glacial lake deposits. | Low | 7 | 77.4% |
| South-Central Michigan Basin | Sandy and silty glacial deposits derived from sandstones, gray shales, limestones, and dolomites. | Moderate | 10 | 21.2% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Huron County beside the ground around it
Across Michigan 9.6% of the land is rated high; none of Huron County's is. Every one of the 2 counties that border it has more moderate-potential ground, Sanilac County the most at 99.7%.
The map rates the ground, not the air in any home.
Local help
Huron County, Local resources
Radon testing and mitigation in Huron County
- Michigan Indoor Radon ProgramMichigan Indoor Radon Program, run by Michigan Department of Environment, Great Lakes, and Energy, does not license radon professionals, and answers questions about testing and mitigation in Michigan.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 Michigan69 professionals are listed in Michigan.
What Michigan's program says
- Phone
- 800-723-6642
- Radon@Michigan.gov
- Licensing of radon professionals
Michigan does not license or regulate radon testing and mitigation contractors.
What it means
Huron County, Questions
Questions about radon in Huron County
Are radon levels high in Huron County?
Over the 2008 to 2017 laboratory totals, 26.5% of the radon tests reported to CDC for Huron County, Michigan were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.9 pCi/L. Of 82 Michigan counties with 30 or more tests for the same period, 22 reported a higher share; pooled, the state comes to 26.9%.
Which counties border Huron County?
Huron County borders 2 counties: Sanilac County and Tuscola County.
Products
Huron County, Products
Testing a home in Huron County
In Huron County, 26.5% of 260 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 26.9% pooled across Michigan. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in Huron County.
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
Monitor
RadonScan USB-powered radon monitor with a color screen
- C-NRPP 2024/25: Not included
- Plug-in
- Alarm
- Screen
First reading: Within 5 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Huron County, Bordering counties
Counties bordering Huron County
Calculated by Radon411- Radon levels in Tuscola CountyEPA zone 3
35.5%at or above 4 pCi/L
Median 2.6 pCi/L · 369 tests · 9.0 points above Huron County
- Radon levels in Sanilac CountyEPA zone 2
16.6%at or above 4 pCi/L
Median 1.6 pCi/L · 325 tests · 9.9 points below Huron County
Huron County, Cities and towns
Cities and towns in Huron County
About 30,530 people live in Huron County by the Census Bureau's estimate for July 1, 2025, 848 fewer than in 2020 (−2.7%). That works out to 37 people per square mile of land. No town dominates: Bad Axe, the largest, has 2,943 residents, 9.6% of the total. Together its 11 incorporated places hold 36.7% of those residents; the other 63.3% live outside any of them. CDC's 260 reported tests for 2008 to 2017 work out to 8.5 per 1,000 residents (2025 estimate), close to Michigan's 11.3.
From Bad Axe to Owendale, CDC publishes no figure by town: each reads Huron County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Bad Axe | 2,943 | −2.9% | 9.6% |
| Sebewaing | 1,678 | −3.3% | 5.5% |
| Harbor Beach | 1,556 | −2.9% | 5.1% |
| Pigeon | 1,180 | −3.1% | 3.9% |
| Ubly | 824 | −2.7% | 2.7% |
| Elkton | 776 | −3.1% | 2.5% |
| Port Austin | 649 | −2.6% | 2.1% |
| Caseville | 637 | −2.5% | 2.1% |
| Kinde | 428 | −3.2% | 1.4% |
| Port Hope | 272 | −2.9% | 0.9% |
| Owendale | 255 | −2.7% | 0.8% |
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).
Huron County, Homes
Homes in Huron County
Huron County is a place of houses on their own lots: 86% of its 20,372 homes are detached single-family houses, against 72% across Michigan. Half of its homes were built before 1967, close to Michigan's 1972: 43% date from before 1960 and 11% from 2000 or later. Owners live in 82% of the occupied homes (Michigan: 73%), so for most households a test and a fix are their own to order.
| Homes | Huron County | Michigan |
|---|---|---|
| Housing units | 20,372 | 4,599,683 |
| Detached houses | 86% | 72% |
| In buildings of 5 or more | 5% | 13% |
| Mobile homes | 6% | 5% |
| Built before 1960 | 43% | 36% |
| Built since 2000 | 11% | 15% |
| Middle year built | 1967 | 1972 |
| Owner-occupied | 82% | 73% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.