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Radon in Laurens County, South Carolina

Laurens County, South Carolina, is in EPA radon Zone 2: predicted average indoor radon screening level from 2 to 4 pCi/L (moderate potential). Radon laboratories reported 175 building tests here for 2008 to 2017: median 1.3 pCi/L, with 13.9% at or above EPA's 4 pCi/L action level (South Carolina 18.1%, US 36.5%).

Zone 2
EPA radon zone (1993 county map)
1.3
median lab test, pCi/L (2008-2017)
13.9%
of lab tests at or above 4 pCi/L
175
buildings tested by labs, 2008-2017

Radon test results in Laurens County

Radon test results on file for Laurens County, SC, with state and national comparison
Test resultsPeriodTestsTypical result4 pCi/L or more
Radon testing laboratories2008-2017175median 1.3 pCi/L13.9%
South Carolina, all counties (labs)2008-201715,855n/a18.1%
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
Greenwood County, SCZone 3967.1%
Union County, SCZone 3240%
Newberry County, SCZone 37716%
Spartanburg County, SCZone 21,66519.1%
Abbeville County, SCZone 24622.7%
Greenville County, SCZone 17,07719.6%

The six counties with the nearest centers.

What to do about radon in Laurens 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. South Carolina's state radon program can point you to testers and test kits.

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 Laurens County address

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

Radon in Laurens County: questions

What is the radon level in Laurens County?

The median of the 175 laboratory tests reported for Laurens County (2008 to 2017) was 1.3 pCi/L, and 13.9% 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 Laurens County in radon Zone 1?

No. EPA's 1993 map puts Laurens County in Zone 2 (predicted average indoor radon screening level from 2 to 4 pCi/L (moderate potential)). EPA says homes in every zone can have high radon and should be tested.

How does radon in Laurens County compare with South Carolina?

13.9% of laboratory tests in Laurens County were at or above 4 pCi/L for 2008 to 2017, against 18.1% across South Carolina (15,855 tests) and 36.5% nationally. 1 of South Carolina's 46 counties are in Zone 1.

Should I test for radon in Laurens 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 Laurens 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 South Carolina county · Radon map of every state

Data compiled 2026-10-20. County FIPS 45059. County-level screening information, not a radon measurement of any building.