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Radon in Huntsville, Alabama

Huntsville, Alabama spans 3 counties, Limestone County, Madison County and Morgan County. Radon data is published by county, so this page sets their figures side by side.

AlabamaAbout 233,627 people

What this means for you

  • Your area: Huntsville lies in 3 counties. EPA rates Limestone County Zone 1, Madison County Zone 1 and Morgan County Zone 1, 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 2008 to 2017, the share of radon tests reported to CDC that were at or above 4 pCi/L was 10.1% in Limestone County (674 tests), 25.2% in Madison County (5,178 tests) and 14.6% in Morgan County (453 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.

Huntsville, What is published

What is published for Huntsville

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 Huntsville, 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 233,627 people live in Huntsville.

Huntsville, Counties

Huntsville's counties, side by side

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.

  • Limestone County
    EPA zone
    Zone 1: Highest predicted potential
    At or above 4 pCi/L
    10.1%
    Median result
    1.3 pCi/L
    Tests reported
    674 tests
    Annual years on file
    0
  • Madison County
    EPA zone
    Zone 1: Highest predicted potential
    At or above 4 pCi/L
    25.2%
    Median result
    1.9 pCi/L
    Tests reported
    5,178 tests
    Annual years on file
    0
  • Morgan County
    EPA zone
    Zone 1: Highest predicted potential
    At or above 4 pCi/L
    14.6%
    Median result
    1.4 pCi/L
    Tests reported
    453 tests
    Annual years on file
    0
The counties Huntsville lies in, each with its own EPA zone and its own published CDC figures for 2008 to 2017, laboratory
CountyEPA zoneReported tests at or above 4 pCi/LMedian reported resultTests reportedAnnual years on file
Limestone CountyZone 1: Highest predicted potential10.1%1.3 pCi/L674 tests0
Madison CountyZone 1: Highest predicted potential25.2%1.9 pCi/L5,178 tests0
Morgan CountyZone 1: Highest predicted potential14.6%1.4 pCi/L453 tests0

The median reported pre-mitigation result for 2008 to 2017, laboratory was 1.3 pCi/L in Limestone County, 1.9 pCi/L in Madison County and 1.4 pCi/L in Morgan 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.

Huntsville, Local resources

Local resources for Huntsville

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

Alabama Radon Program

Alabama Department of Public Health

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

Phone
(334) 290-6244
Visit the program's page(opens in a new tab)

Test kits

The program says: Due to high demand, the free radon test kits are currently unavailable.

Free and low-cost kitsCompare kits

Radon professionals

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

Professionals in Alabama

Huntsville, Questions

Questions about radon in Huntsville

What radon zone is Huntsville in?

EPA's Map of Radon Zones classifies counties, not cities. Limestone County, Madison County and Morgan County are in Zone 1 (highest 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 Huntsville's counties?

For 2008 to 2017, laboratory, the share of radon tests reported to CDC that were at or above 4 pCi/L was 10.1% in Limestone County (674 tests), 25.2% in Madison County (5,178 tests) and 14.6% in Morgan County (453 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 Huntsville?

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 Limestone County, Madison County and Morgan County, the counties Huntsville lies in.

Huntsville, Keep reading

Keep reading

Huntsville / Next steps

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