Short-term kitKidde
442020 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 3 days
Locations and reports
Radon Levels in Midland County, Michigan
EPA puts Midland County in Zone 3, its lowest radon zone, and most reported tests there come back low, though 5.3% of 2,006 (2008 to 2017, laboratory totals) reached 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
5.3%
21.6 pts below MI
- Midland
- 5.3%
- Michigan
- 26.9%
2,006 tests, 2008 to 2017
Median result
1.0pCi/L
Below action level
- Midland
- 1.0 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
2,006
15th of 82 by tests
- Midland
- 2,006
- 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
81 of 82
Lowest quarter
- Midland
- 5.3%
- Lenawee
- 56.7%
By share, of 82 with 30+ tests
Read a result for Midland County
Starts at Midland County's median, 1.0 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 1.0 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. Midland County's median reported result, 2008 to 2017.
The data
Midland County, At a glance
Midland County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Midland County, 2008 to 2017, laboratory
Under 2 pCi/L: 79%2 to 4 pCi/L: 16%4 pCi/L and above: 5%
Of 2,006 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 1,588 | 79.2% |
| 2 to 4 pCi/L | 312 | 15.6% |
| 4 pCi/L and above | 106 | 5.3% |
What these figures count
These are the 2,006 tests reported to CDC for Midland 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).
Midland County, Compared
Midland County radon figures, compared
Calculated by Radon411Midland County reports fewer high tests than Michigan overall. 5.3% of its 2,006 tests over the 2008 to 2017 laboratory totals were at or above 4 pCi/L. That is 21.6 points below the 26.9% pooled from 83 Michigan counties.
Ordered from highest share down, it comes 81st of 82 Michigan counties with 30 or more tests for the same period. Nationally, every county with a figure for the same period pools to 35.7%; Midland County sits 30.4 points below it.
Next door, the shares run from 8.5% in Bay County to 17.0% in Saginaw County. Zone 3 on EPA's map (predicted average under 2 pCi/L) and a 5.3% share point the same way here.
Half the tests came in under 1.0 pCi/L and half over it; the single highest reached 40.5 pCi/L. The rest split 79.2% under 2 pCi/L and 15.6% from 2 to 4 (Michigan: 46.4% and 26.7%).
CDC's ten-year totals for Midland County went from 2,063 tests (2005 to 2014) to 2,006 (2008 to 2017), the share going from 4.9% to 5.3%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Midland County, State data
Michigan's own radon test data
MeasuredWhat Michigan's own agencies publish about radon tests in Midland 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 Midland County
Michigan EGLE publishes its figures by ZIP code, not by county. These are the 15 ZIP codes that lie wholly or partly in Midland County, each with the state's own figures for it. Period: About 10 years to 2026-05-15.
| ZIP code | What the state reports |
|---|---|
| 48612 | 9% greater than 4 pCi/L, median 0.3 pCi/L, 35 tests |
| 48615 | 14% greater than 4 pCi/L, median 0.8 pCi/L, 7 tests |
| 48618 | 8% greater than 4 pCi/L, median 1.0 pCi/L, 13 tests |
| 48623 | 22% greater than 4 pCi/L, median 1.7 pCi/L, 103 tests |
| 48626 | 4% greater than 4 pCi/L, median 1.2 pCi/L, 47 tests |
| 48628 | 18% greater than 4 pCi/L, median 1.3 pCi/L, 11 tests |
| 48637 | 0% greater than 4 pCi/L, median 0.7 pCi/L, 15 tests |
| 48640 | 5% greater than 4 pCi/L, median 1.2 pCi/L, 319 tests |
| 48642 | 2% greater than 4 pCi/L, median 1.0 pCi/L, 315 tests |
| 48652 | 2 tests, figures not shown |
| 48657 | 3% greater than 4 pCi/L, median 0.6 pCi/L, 34 tests |
| 48662 | 3 tests, figures not shown |
| 48858 | 20% greater than 4 pCi/L, median 2.1 pCi/L, 157 tests |
| 48880 | 10% greater than 4 pCi/L, median 1.6 pCi/L, 42 tests |
| 48883 | 31% greater than 4 pCi/L, median 3.1 pCi/L, 32 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.
Midland County, Geology
The ground under Midland County
PredictedUSGS's geologic map puts all of Midland County's mapped land in one class: low radon potential. All of it lies in the area the map calls Glacial Lakes, to which USGS gives a radon index of 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Glacial Lakes | Silt and clay glacial lake deposits. | Low | 7 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Midland County beside the ground around it
Across Michigan 9.6% of the land is rated high; none of Midland County's is. Of the 6 counties that border it, 2 have more moderate-potential ground, Gratiot County the most at 42.1%.
The map rates the ground, not the air in any home.
Local help
Midland County, Local resources
Radon testing and mitigation in Midland 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
Midland County, Questions
Questions about radon in Midland County
Are radon levels high in Midland County?
Over the 2008 to 2017 laboratory totals, 5.3% of the radon tests reported to CDC for Midland County, Michigan were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.0 pCi/L. Of 82 Michigan counties with 30 or more tests for the same period, 80 reported a higher share; pooled, the state comes to 26.9%.
Which counties border Midland County?
Midland County borders 6 counties: Gladwin County, Bay County, Isabella County, Saginaw County, Clare County and Gratiot County.
Products
Midland County, Products
Testing a home in Midland County
In Midland County, 5.3% of 2,006 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 Midland County.
Test kits and monitors3
See every kit and monitor
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
MonitorAEGTEST
HOUND-1085 palm-sized rechargeable radon detector
- 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
Midland County, Bordering counties
Counties bordering Midland County
Calculated by Radon411- Radon levels in Saginaw CountyEPA zone 3
17.0%at or above 4 pCi/L
Median 1.7 pCi/L · 3,037 tests · 11.7 points above Midland County
- Radon levels in Gratiot CountyEPA zone 3
16.8%at or above 4 pCi/L
Median 1.7 pCi/L · 457 tests · 11.5 points above Midland County
- Radon levels in Isabella CountyEPA zone 3
16.4%at or above 4 pCi/L
Median 1.6 pCi/L · 870 tests · 11.1 points above Midland County
- Radon levels in Gladwin CountyEPA zone 3
15.4%at or above 4 pCi/L
Median 1.3 pCi/L · 247 tests · 10.1 points above Midland County
- Radon levels in Clare CountyEPA zone 3
14.1%at or above 4 pCi/L
Median 1.6 pCi/L · 198 tests · 8.8 points above Midland County
- Radon levels in Bay CountyEPA zone 3
8.5%at or above 4 pCi/L
Median 1.4 pCi/L · 624 tests · 3.2 points above Midland County
Midland County, Cities and towns
Cities and towns in Midland County
Midland County's population has barely moved since 2020: 83,754 residents on July 1, 2025 against 83,488 then, by the Census Bureau's estimates. That works out to 162 people per square mile of land. Midland, the largest place on its list (42,806 residents in all), extends beyond Midland County, so no share of the total is worked out for it. Testing is reported here more often than across the state: CDC's 2,006 reported tests for 2008 to 2017 come to 24.0 for every 1,000 residents (2025 estimate), against 11.3 for Michigan.
From Midland to Sanford, CDC publishes no figure by town: each reads Midland County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Midlandextends beyond Midland County | 42,806 | +0.4% | Counted whole |
| Coleman | 1,252 | −0.9% | 1.5% |
| Sanford | 761 | −2.6% | 0.9% |
3 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 Midland County is counted whole, so it has no share.
Midland County, Homes
Homes in Midland County
Midland County is a place of houses on their own lots: 76% of its 37,048 homes are detached single-family houses, against 72% across Michigan. Half of its homes were built before 1975, close to Michigan's 1972: 26% date from before 1960 and 14% from 2000 or later. Owners live in 78% of the occupied homes (Michigan: 73%), so for most households a test and a fix are their own to order.
| Homes | Midland County | Michigan |
|---|---|---|
| Housing units | 37,048 | 4,599,683 |
| Detached houses | 76% | 72% |
| In buildings of 5 or more | 11% | 13% |
| Mobile homes | 7% | 5% |
| Built before 1960 | 26% | 36% |
| Built since 2000 | 14% | 15% |
| Middle year built | 1975 | 1972 |
| Owner-occupied | 78% | 73% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.