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Radon in Springfield, Missouri

Springfield, Missouri spans 2 counties, Christian County and Greene County. Radon data is published by county, so this page sets their figures side by side.

MissouriAbout 169,847 people

What this means for you

  • Your area: Springfield lies in 2 counties. EPA rates Christian County Zone 2 and Greene County Zone 2, where Zone 1 is the highest of its three radon zones. Zones are predictions for whole counties, and homes with elevated levels occur in all three zones.
  • Local tests: For 2023, the share of radon tests reported to CDC that were at or above 4 pCi/L was 43.5% in Christian County (23 tests) and 27.1% in Greene County (48 tests). EPA's action level is 4 pCi/L.
  • 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.

Springfield, What is published

What is published for Springfield

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 Springfield, so every radon figure on this page belongs to a county and is labelled with it. Only a test tells you about one home.

Each county has its own CDC test figures, shown below side by side. About 169,847 people live in Springfield.

Springfield, Counties

Springfield's counties, side by side

Measured

Each county's own EPA zone and its own published CDC figures for 2023, 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.

  • Christian County
    EPA zone
    Zone 2: Moderate predicted potential
    At or above 4 pCi/L
    43.5%
    Median result
    2.7 pCi/L
    Tests reported
    23 tests
    Annual years on file
    10
  • Greene County
    EPA zone
    Zone 2: Moderate predicted potential
    At or above 4 pCi/L
    27.1%
    Median result
    2.9 pCi/L
    Tests reported
    48 tests
    Annual years on file
    10
The counties Springfield lies in, each with its own EPA zone and its own published CDC figures for 2023
CountyEPA zoneReported tests at or above 4 pCi/LMedian reported resultTests reportedAnnual years on file
Christian CountyZone 2: Moderate predicted potential43.5%2.7 pCi/L23 tests10
Greene CountyZone 2: Moderate predicted potential27.1%2.9 pCi/L48 tests10

The median reported pre-mitigation result for 2023 was 2.7 pCi/L in Christian County and 2.9 pCi/L in Greene 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, 2023.

Springfield, Local resources

Local resources for Springfield

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

Missouri Radon Program

Missouri Department of Health and Senior Services

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

Phone
573-751-6102
Email
radon@health.mo.gov
Visit the program's page(opens in a new tab)

Test kits

The program says: Free radon test kits are available for Missouri residents (limit one per household).

Free and low-cost kitsCompare kits

Radon professionals

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

Professionals in Missouri

Springfield, Questions

Questions about radon in Springfield

What radon zone is Springfield in?

EPA's Map of Radon Zones classifies counties, not cities. Christian County and Greene County are 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 Springfield's counties?

For 2023, the share of radon tests reported to CDC that were at or above 4 pCi/L was 43.5% in Christian County (23 tests) and 27.1% in Greene County (48 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 Springfield?

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 Christian County and Greene County, the counties Springfield lies in.

Springfield, Keep reading

Keep reading

Springfield / Next steps

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