Short-term kit
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
Locations and reports
Radon Levels in Muskegon County, Michigan
EPA puts Muskegon County in Zone 3, its lowest radon zone, and most reported tests there come back low, though 3.2% of 629 (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
3.2%
23.7 pts below MI
- Muskegon
- 3.2%
- Michigan
- 26.9%
629 tests, 2008 to 2017
Median result
1.2pCi/L
Below action level
- Muskegon
- 1.2 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
629
39th of 82 by tests
- Muskegon
- 629
- 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
82 of 82
Lowest quarter
- Muskegon
- 3.2%
- Lenawee
- 56.7%
By share, of 82 with 30+ tests
Read a result for Muskegon County
Starts at Muskegon County's median, 1.2 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 1.2 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. Muskegon County's median reported result, 2008 to 2017.
The data
Muskegon County, At a glance
Muskegon County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 98% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Muskegon County, 2008 to 2017, laboratory
Under 2 pCi/L: 77%2 to 4 pCi/L: 20%4 pCi/L and above: 3%
Of 629 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 485 | 77.1% |
| 2 to 4 pCi/L | 124 | 19.7% |
| 4 pCi/L and above | 20 | 3.2% |
What these figures count
These are the 629 tests reported to CDC for Muskegon 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).
Muskegon County, Compared
Muskegon County radon figures, compared
Calculated by Radon411Only 20 of 629 radon tests reported for Muskegon County over the 2008 to 2017 laboratory totals reached 4 pCi/L (3.2%). The median result, 1.2 pCi/L, sits below 2, well under EPA's 4 pCi/L action level, and the top reported result was 14.3 pCi/L.
Across 83 Michigan counties pooled together, 26.9% of tests reached that level, so Muskegon County runs 23.7 points below its state. Against the national pool of 35.7%, the gap is 32.5 points lower. Its place in the state: 82nd of 82 Michigan counties with 30 or more tests for the same period.
Zone 3 on EPA's map (predicted average under 2 pCi/L) and a 3.2% share point the same way here. Of 4 neighbours with a figure, all 4 reported a larger share at or above 4 pCi/L; the spread is 5.9% (Oceana County) to 16.8% (Ottawa County).
Below the action level, 485 tests (77.1%) came in under 2 pCi/L, against 46.4% statewide, and 124 tests (19.7%) fell between 2 and 4, against 26.7% statewide. USGS geology rates 98% of the county's land low radon potential.
CDC's ten-year totals for Muskegon County went from 680 tests (2005 to 2014) to 629 (2008 to 2017), the share going from 2.4% to 3.2%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Muskegon County, State data
Michigan's own radon test data
MeasuredWhat Michigan's own agencies publish about radon tests in Muskegon 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 Muskegon County
Michigan EGLE publishes its figures by ZIP code, not by county. These are the 18 ZIP codes that lie wholly or partly in Muskegon County, each with the state's own figures for it. Period: About 10 years to 2026-05-15.
| ZIP code | What the state reports |
|---|---|
| 49318 | 4 tests, figures not shown |
| 49327 | 13% greater than 4 pCi/L, median 1.7 pCi/L, 15 tests |
| 49330 | 6% greater than 4 pCi/L, median 2.0 pCi/L, 16 tests |
| 49404 | 9% greater than 4 pCi/L, median 1.3 pCi/L, 35 tests |
| 49412 | 16% greater than 4 pCi/L, median 1.1 pCi/L, 38 tests |
| 49415 | 6% greater than 4 pCi/L, median 1.1 pCi/L, 17 tests |
| 49425 | 6% greater than 4 pCi/L, median 1.3 pCi/L, 18 tests |
| 49437 | 4% greater than 4 pCi/L, median 1.1 pCi/L, 24 tests |
| 49440 | 1 tests, figures not shown |
| 49441 | 2% greater than 4 pCi/L, median 0.8 pCi/L, 133 tests |
| 49442 | 1% greater than 4 pCi/L, median 1.0 pCi/L, 134 tests |
| 49444 | 1% greater than 4 pCi/L, median 0.7 pCi/L, 72 tests |
| 49445 | 0% greater than 4 pCi/L, median 1.1 pCi/L, 59 tests |
| 49448 | 0% greater than 4 pCi/L, median 1.1 pCi/L, 12 tests |
| 49451 | 0% greater than 4 pCi/L, median 0.8 pCi/L, 8 tests |
| 49456 | 0% greater than 4 pCi/L, median 0.8 pCi/L, 42 tests |
| 49457 | 3% greater than 4 pCi/L, median 0.7 pCi/L, 33 tests |
| 49461 | 13% greater than 4 pCi/L, median 1.5 pCi/L, 30 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.
Muskegon County, Geology
The ground under Muskegon County
PredictedUSGS's geologic map puts all of Muskegon County's mapped land in one class: low radon potential. 98.4% of it lies in the area the map calls Lake Michigan Lobe Deposits, to which USGS gives a radon index of 8, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Lake Michigan Lobe Deposits | Sandy to clayey glacial deposits and some glacial lake deposits. | Low | 8 | 98.4% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Muskegon County beside the ground around it
Across Michigan 9.6% of the land is rated high; none of Muskegon County's is. Of the 4 counties that border it, 2 have more moderate-potential ground, Kent County the most at 76.4%.
The map rates the ground, not the air in any home.
Local help
Muskegon County, Local resources
Radon testing and mitigation in Muskegon 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
Muskegon County, Questions
Questions about radon in Muskegon County
Are radon levels high in Muskegon County?
Over the 2008 to 2017 laboratory totals, 3.2% of the radon tests reported to CDC for Muskegon County, Michigan were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.2 pCi/L. Of 82 Michigan counties with 30 or more tests for the same period, 81 reported a higher share; pooled, the state comes to 26.9%.
Which counties border Muskegon County?
Muskegon County borders 4 counties: Oceana County, Ottawa County, Newaygo County and Kent County.
Products
Muskegon County, Products
Testing a home in Muskegon County
In Muskegon County, 3.2% of 629 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 Muskegon 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
MonitorX-Sense
XR0A-SR battery digital radon detector with a screen
- C-NRPP 2024/25: Not included
- Battery
- Screen
Method: Alpha spectrometry
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Muskegon County, Bordering counties
Counties bordering Muskegon County
Calculated by Radon411- Radon levels in Ottawa CountyEPA zone 3
16.8%at or above 4 pCi/L
Median 1.6 pCi/L · 2,546 tests · 13.6 points above Muskegon County
- Radon levels in Kent CountyEPA zone 2
16.5%at or above 4 pCi/L
Median 1.8 pCi/L · 8,449 tests · 13.3 points above Muskegon County
- Radon levels in Newaygo CountyEPA zone 3
7.9%at or above 4 pCi/L
Median 1.3 pCi/L · 467 tests · 4.7 points above Muskegon County
- Radon levels in Oceana CountyEPA zone 3
5.9%at or above 4 pCi/L
Median 1.2 pCi/L · 338 tests · 2.7 points above Muskegon County
Muskegon County, Cities and towns
Cities and towns in Muskegon County
The Census Bureau estimates 177,901 residents in Muskegon County for July 1, 2025, 3,118 more than in 2020 (+1.8%). That works out to 353 people per square mile of land. Its largest town, Muskegon, has 37,224 residents, 20.9% of the total. Reported testing is thin here: 629 tests over 2008 to 2017, or 3.5 for every 1,000 residents (2025 estimate), where Michigan as a whole comes to 11.3.
From Muskegon to Casnovia, CDC publishes no figure by town: each reads Muskegon County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Muskegon | 37,224 | Level | 20.9% |
| Norton Shores | 25,088 | +0.3% | 14.1% |
| Muskegon Heights | 9,770 | −1.4% | 5.5% |
| Roosevelt Park | 4,121 | −1.1% | 2.3% |
| North Muskegon | 4,079 | −0.4% | 2.3% |
| Whitehall | 3,205 | +9.8% | 1.8% |
| Montague | 2,424 | +0.2% | 1.4% |
| Ravenna | 1,409 | +5.3% | 0.8% |
| Lakewood Club | 1,345 | +1.0% | 0.8% |
| Fruitport | 1,176 | +6.6% | 0.7% |
| Casnoviaextends beyond Muskegon County | 315 | +0.3% | 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 Muskegon County is counted whole, so it has no share.
Muskegon County, Homes
Homes in Muskegon County
Muskegon County is a place of houses on their own lots: 77% of its 74,969 homes are detached single-family houses, against 72% across Michigan. Half of its homes were built before 1968, close to Michigan's 1972: 41% date from before 1960 and 15% 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 | Muskegon County | Michigan |
|---|---|---|
| Housing units | 74,969 | 4,599,683 |
| Detached houses | 77% | 72% |
| In buildings of 5 or more | 9% | 13% |
| Mobile homes | 7% | 5% |
| Built before 1960 | 41% | 36% |
| Built since 2000 | 15% | 15% |
| Middle year built | 1968 | 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.