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Locations and reports

Radon in Huntsville, Alabama

Huntsville lies in 3 counties, in EPA Zone 1. Homes with elevated levels occur in all three zones, so the only way to know your home's level is to test it.

Data checked By Radon411Methodology

Predicted
Zone 1Highest predicted potential
Measured
By countyEach county's own CDC figures are set side by side below.
Your home
Test to knowNo area figure here is a reading of your home.

The data

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.

Radon Action Brief

National Radon Action MonthPre-sale

The radon brief for Huntsville, in one dated file.

  • Your area's radon record, explained.
  • Your plan to test this week.
  • Fix costs and pros near you.

Save 64%Sale price: $8.99Price after the sale: $25Ends Jan 31Then $25

Get the Huntsville BriefSee a free sample

Area data, not a test of the building.

What it means

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.