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Radon in Maury County, Tennessee

Maury County, Tennessee, is in EPA radon Zone 3: predicted average indoor radon screening level less than 2 pCi/L (low potential). Radon laboratories reported 377 building tests here for 2008 to 2017: median 3.0 pCi/L, with 39.3% at or above EPA's 4 pCi/L action level (Tennessee 32.8%, US 36.5%). Tennessee's 2025 pre-mitigation tests: median 2.3 pCi/L, 22.7% of 22 at or above 4 pCi/L.

Zone 3
EPA radon zone (1993 county map)
3.0
median lab test, pCi/L (2008-2017)
39.3%
of lab tests at or above 4 pCi/L
377
buildings tested by labs, 2008-2017

Radon test results in Maury County

Radon test results on file for Maury County, TN, with state and national comparison
Test resultsPeriodTestsTypical result4 pCi/L or more
Radon testing laboratories2008-2017377median 3.0 pCi/L39.3%
Tennessee radon program202312median 3.0 pCi/L37.5%
Tennessee state health records, pre-mitigation tests202522median 2.3 pCi/L22.7%
Tennessee, all counties (labs)2008-201723,071n/a32.8%
United States (labs)2008-20171,408,802n/a36.5%

Test results describe buildings whose owners chose to test and whose results reached the lab or agency, not a random sample; small counts swing widely. State and US shares are computed from county counts and percents. The laboratory data comes from national radon testing laboratories and supplements EPA's zone map.

Radon in nearby counties

CountyEPA zoneLab tests4 pCi/L or more
Marshall County, TNZone 111518.1%
Williamson County, TNZone 12,26525.8%
Lewis County, TNZone 14716.1%
Hickman County, TNZone 19635%
Giles County, TNZone 110840.7%
Lawrence County, TNZone 111121.3%

The six counties with the nearest centers.

What to do about radon in Maury County

Test the building. EPA recommends fixing a home at 4 pCi/L or more and considering a fix between 2 and 4 pCi/L, and says there is no known safe level of exposure. The state health department runs the state's radon program.

Buying here? The Environmental Records Report lists this county's radon zone and test results with the flood zone, mapped faults, power lines and federal contamination records near the address.

Check one Maury County address

Environmental Records Report, $29. PDF and JSON, usually ready in about a minute.

Radon in Maury County: questions

What is the radon level in Maury County?

The median of the 377 laboratory tests reported for Maury County (2008 to 2017) was 3.0 pCi/L, and 39.3% of them were at or above 4 pCi/L. These are results of tested buildings; a single home can be far above or below them.

Is Maury County in radon Zone 1?

No. EPA's 1993 map puts Maury County in Zone 3 (predicted average indoor radon screening level less than 2 pCi/L (low potential)). EPA says homes in every zone can have high radon and should be tested.

How does radon in Maury County compare with Tennessee?

39.3% of laboratory tests in Maury County were at or above 4 pCi/L for 2008 to 2017, against 32.8% across Tennessee (23,071 tests) and 36.5% nationally. 39 of Tennessee's 95 counties are in Zone 1.

Should I test for radon in Maury County?

Yes. EPA recommends testing every home whatever its zone: "This map should not be used to determine if individual homes need to be tested." Fix the home at 4 pCi/L or more and consider a fix between 2 and 4 pCi/L; EPA says there is no known safe level of radon exposure.

More for Maury County

Other free hazard lookups

All of these, plus wetlands, FEMA hazard ratings and the federal contamination lists, are in the Environmental Records Report for any US address ($29).

Radon in every Tennessee county · Radon map of every state

Data compiled 2026-10-20. County FIPS 47119. County-level screening information, not a radon measurement of any building.