Radon by ZIP

Radon zones in Arkansas

Last updated

EPA’s Map of Radon Zones places 75 Arkansas counties in its three radon potential zones: 0 in Zone 1 (highest), 14 in Zone 2 (moderate), and 61 in Zone 3 (low).

0Zone 1 · Highest potential
14Zone 2 · Moderate potential
61Zone 3 · Low potential

What this means for Arkansas homes

Most Arkansas counties fall in Zone 3. EPA predicts lower average indoor levels (below 2 pCi/L) across much of Arkansas. That does not mean your home is low: EPA notes that elevated levels are found in Zone 3 counties too.

EPA’s guidance is the same everywhere: test your home, fix it if the level is 4 pCi/L or higher, and consider fixing between 2 and 4 pCi/L. The zone map is from 1993 and should not be used to decide whether a single home needs testing.

Arkansas radon program

EPA lists the following state contact for Arkansas: AR Department of Health Radiation Control Section, phone 501-661-2621. Website: www.healthy.arkansas.gov/programs-services/topics/radon-gas. State programs can tell you about local testing data, free or discounted test kits, disclosure rules for home sales, and credentialed radon professionals.

Arkansas counties and their EPA radon zones

CountyEPA radon zone
Arkansas CountyZone 3
Ashley CountyZone 3
Baxter CountyZone 2
Benton CountyZone 2
Boone CountyZone 2
Bradley CountyZone 3
Calhoun CountyZone 3
Carroll CountyZone 2
Chicot CountyZone 3
Clark CountyZone 3
Clay CountyZone 3
Cleburne CountyZone 3
Cleveland CountyZone 3
Columbia CountyZone 3
Conway CountyZone 3
Craighead CountyZone 3
Crawford CountyZone 3
Crittenden CountyZone 3
Cross CountyZone 3
Dallas CountyZone 3
Desha CountyZone 3
Drew CountyZone 3
Faulkner CountyZone 3
Franklin CountyZone 3
Fulton CountyZone 2
Garland CountyZone 2
Grant CountyZone 3
Greene CountyZone 3
Hempstead CountyZone 3
Hot Spring CountyZone 3
Howard CountyZone 3
Independence CountyZone 2
Izard CountyZone 2
Jackson CountyZone 3
Jefferson CountyZone 3
Johnson CountyZone 3
Lafayette CountyZone 3
Lawrence CountyZone 3
Lee CountyZone 3
Lincoln CountyZone 3
Little River CountyZone 3
Logan CountyZone 3
Lonoke CountyZone 3
Madison CountyZone 3
Marion CountyZone 2
Miller CountyZone 3
Mississippi CountyZone 3
Monroe CountyZone 3
Montgomery CountyZone 2
Nevada CountyZone 3
Newton CountyZone 3
Ouachita CountyZone 3
Perry CountyZone 3
Phillips CountyZone 3
Pike CountyZone 3
Poinsett CountyZone 3
Polk CountyZone 3
Pope CountyZone 3
Prairie CountyZone 3
Pulaski CountyZone 3
Randolph CountyZone 2
Saline CountyZone 3
Scott CountyZone 3
Searcy CountyZone 2
Sebastian CountyZone 3
Sevier CountyZone 3
Sharp CountyZone 2
St. Francis CountyZone 3
Stone CountyZone 2
Union CountyZone 3
Van Buren CountyZone 3
Washington CountyZone 3
White CountyZone 3
Woodruff CountyZone 3
Yell CountyZone 3

County names follow the 2020 Census. Zones from the EPA Map of Radon Zones (text version). Rows marked “zone of” use the zone EPA gave the predecessor or surrounding county.

Next steps: read how to test your home, check a result with the level calculator, or look up a single address by ZIP code.

Sources

  1. U.S. EPA, EPA Map of Radon Zones (text version)
  2. U.S. EPA, EPA Map of Radon Zones and Supplemental Information (state radon contacts)
  3. U.S. EPA, EPA Maps of Radon Zones and Supporting Documents by State