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Radon in Garland County, Arkansas

Garland County, Arkansas, is in EPA radon Zone 2: predicted average indoor radon screening level from 2 to 4 pCi/L (moderate potential). Radon laboratories reported 29 building tests here for 2008 to 2017: median 2.7 pCi/L, with 45.5% at or above EPA's 4 pCi/L action level (Arkansas 22.9%, US 36.5%).

Zone 2
EPA radon zone (1993 county map)
2.7
median lab test, pCi/L (2008-2017)
45.5%
of lab tests at or above 4 pCi/L
29
buildings tested by labs, 2008-2017

Radon test results in Garland County

Radon test results on file for Garland County, AR, with state and national comparison
Test resultsPeriodTestsTypical result4 pCi/L or more
Radon testing laboratories2008-201729median 2.7 pCi/L45.5%
Arkansas, all counties (labs)2008-2017450n/a22.9%
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
Hot Spring County, ARZone 310%
Saline County, ARZone 32835.8%
Perry County, ARZone 3n/an/a
Montgomery County, ARZone 210%
Yell County, ARZone 310%
Clark County, ARZone 330%

The six counties with the nearest centers.

What to do about radon in Garland 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. Arkansas'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 Garland County address

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

Radon in Garland County: questions

What is the radon level in Garland County?

The median of the 29 laboratory tests reported for Garland County (2008 to 2017) was 2.7 pCi/L, and 45.5% 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 Garland County in radon Zone 1?

No. EPA's 1993 map puts Garland 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 Garland County compare with Arkansas?

45.5% of laboratory tests in Garland County were at or above 4 pCi/L for 2008 to 2017, against 22.9% across Arkansas (450 tests) and 36.5% nationally. 0 of Arkansas's 75 counties are in Zone 1.

Should I test for radon in Garland 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 Garland 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 Arkansas county · Radon map of every state

Data compiled 2026-10-20. County FIPS 05051. County-level screening information, not a radon measurement of any building.