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Radon in Grand Rapids, Michigan

Grand Rapids, Michigan lies in Kent County, which EPA places in Zone 2, moderate predicted potential. Radon data is published by county, so this page reads Kent County's figures.

MichiganAbout 201,183 people

What this means for you

  • Your area: EPA rates Kent County, where Grand Rapids is, Zone 2, the middle of its three radon zones. That is a prediction for the whole county, and homes with elevated levels occur in all three zones.
  • Local tests: Of 8,449 radon tests reported to CDC for Kent County (2008 to 2017, laboratory), 16.5% were at or above 4 pCi/L, EPA's action level.
  • Your home: The only way to know your home’s level is to test it.
How to testFind a certified tester

pCi/L (picocuries per liter) is the unit radon is measured in. EPA recommends fixing a home at 4 pCi/L or above, its action level.

Grand Rapids, What is published

What is published for Grand Rapids

Information:

Radon data is published by county, not by city

Radon data is published by county, not by city. EPA assigns radon zones to counties, and CDC publishes radon test figures by county. Neither publishes a figure for Grand Rapids, so every radon figure on this page belongs to a county and is labelled with it. Only a test tells you about one home.

Kent County has an EPA zone and its own CDC test figures, shown below. About 201,183 people live in Grand Rapids.

Grand Rapids, Counties

The county Grand Rapids lies in

Measured

Each county's own EPA zone and its own published CDC figures for 2008 to 2017, laboratory, the newest period any of them has. A county without a figure for that period is shown without one, never with a figure from another year.

Kent CountyZone 2Moderate predicted potential

16.5%
Reported tests at or above 4 pCi/L, 2008 to 2017, laboratory
1.8 pCi/L
Median reported result
8,449 tests
Tests reported to CDC
0
Annual years on file

The median reported pre-mitigation result for 2008 to 2017, laboratory was 1.8 pCi/L in Kent County.

CDC counts radon tests that were reported to it, not homes, and figures from few tests can swing widely from year to year. Each county’s report has its full history.

Predicted: EPA Map of Radon Zones, by county. Measured: CDC tracking data, by county, 2008 to 2017, laboratory.

Grand Rapids, Local resources

Local resources for Grand Rapids

Who to ask in Michigan: the state's radon program, test kits and professionals.

Michigan Indoor Radon Program

Michigan Department of Environment, Great Lakes, and Energy

Michigan’s radon program answers questions about testing, mitigation and the rules where you live.

Phone
800-723-6642
Email
Radon@Michigan.gov
Licensing of radon professionals
Michigan does not license or regulate radon testing and mitigation contractors.
Visit the program's page(opens in a new tab)

Test kits

Ask the program whether it has free or discounted kits, or compare kits you can buy.

Free and low-cost kitsCompare kits

Radon professionals

Radon testers and mitigators in Michigan, each with how its listing was checked.

Professionals in Michigan

Grand Rapids, Questions

Questions about radon in Grand Rapids

What radon zone is Grand Rapids in?

EPA's Map of Radon Zones classifies counties, not cities. Kent County is in Zone 2 (moderate predicted potential). A zone is a prediction for a whole county and never tells you the level in one home.

How many radon tests come back high in Grand Rapids's counties?

For 2008 to 2017, laboratory, the share of radon tests reported to CDC that were at or above 4 pCi/L was 16.5% in Kent County (8,449 tests). Each is that county's own figure, counting tests reported to CDC, not homes. Radon411 does not average or combine them into a figure for the city.

Should I test my home in Grand Rapids?

Yes. Testing is the only way to know the radon level in a specific building. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. How to test a home.

The answers use the published figures of Kent County, the county Grand Rapids lies in.

Grand Rapids, Keep reading

Keep reading

Grand Rapids / Next steps

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