Radon by ZIP

Radon zones in Georgia

Last updated

EPA’s Map of Radon Zones places 159 Georgia counties in its three radon potential zones: 4 in Zone 1 (highest), 55 in Zone 2 (moderate), and 100 in Zone 3 (low).

4Zone 1 · Highest potential
55Zone 2 · Moderate potential
100Zone 3 · Low potential

What this means for Georgia homes

Most Georgia counties fall in Zone 3. EPA predicts lower average indoor levels (below 2 pCi/L) across much of Georgia. 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.

Georgia radon program

EPA lists the following state contact for Georgia: University of Georgia, phone 706-583-0602. Website: consumer.georgia.gov/consumer-topics/radon. State programs can tell you about local testing data, free or discounted test kits, disclosure rules for home sales, and credentialed radon professionals.

Georgia counties and their EPA radon zones

CountyEPA radon zone
Appling CountyZone 3
Atkinson CountyZone 3
Bacon CountyZone 3
Baker CountyZone 3
Baldwin CountyZone 3
Banks CountyZone 2
Barrow CountyZone 2
Bartow CountyZone 2
Ben Hill CountyZone 3
Berrien CountyZone 3
Bibb CountyZone 3
Bleckley CountyZone 3
Brantley CountyZone 3
Brooks CountyZone 3
Bryan CountyZone 3
Bulloch CountyZone 3
Burke CountyZone 3
Butts CountyZone 2
Calhoun CountyZone 3
Camden CountyZone 3
Candler CountyZone 3
Carroll CountyZone 2
Catoosa CountyZone 2
Charlton CountyZone 3
Chatham CountyZone 3
Chattahoochee CountyZone 3
Chattooga CountyZone 3
Cherokee CountyZone 2
Clarke CountyZone 2
Clay CountyZone 3
Clayton CountyZone 2
Clinch CountyZone 3
Cobb CountyZone 1
Coffee CountyZone 3
Colquitt CountyZone 3
Columbia CountyZone 3
Cook CountyZone 3
Coweta CountyZone 2
Crawford CountyZone 3
Crisp CountyZone 3
Dade CountyZone 3
Dawson CountyZone 2
Decatur CountyZone 3
DeKalb CountyZone 1
Dodge CountyZone 3
Dooly CountyZone 3
Dougherty CountyZone 3
Douglas CountyZone 2
Early CountyZone 3
Echols CountyZone 3
Effingham CountyZone 3
Elbert CountyZone 2
Emanuel CountyZone 3
Evans CountyZone 3
Fannin CountyZone 2
Fayette CountyZone 2
Floyd CountyZone 2
Forsyth CountyZone 2
Franklin CountyZone 2
Fulton CountyZone 1
Gilmer CountyZone 2
Glascock CountyZone 3
Glynn CountyZone 3
Gordon CountyZone 3
Grady CountyZone 3
Greene CountyZone 2
Gwinnett CountyZone 1
Habersham CountyZone 2
Hall CountyZone 2
Hancock CountyZone 3
Haralson CountyZone 2
Harris CountyZone 2
Hart CountyZone 2
Heard CountyZone 2
Henry CountyZone 2
Houston CountyZone 3
Irwin CountyZone 3
Jackson CountyZone 2
Jasper CountyZone 2
Jeff Davis CountyZone 3
Jefferson CountyZone 3
Jenkins CountyZone 3
Johnson CountyZone 3
Jones CountyZone 3
Lamar CountyZone 2
Lanier CountyZone 3
Laurens CountyZone 3
Lee CountyZone 3
Liberty CountyZone 3
Lincoln CountyZone 3
Long CountyZone 3
Lowndes CountyZone 3
Lumpkin CountyZone 2
Macon CountyZone 3
Madison CountyZone 2
Marion CountyZone 3
McDuffie CountyZone 3
McIntosh CountyZone 3
Meriwether CountyZone 2
Miller CountyZone 3
Mitchell CountyZone 3
Monroe CountyZone 2
Montgomery CountyZone 3
Morgan CountyZone 2
Murray CountyZone 3
Muscogee CountyZone 3
Newton CountyZone 2
Oconee CountyZone 2
Oglethorpe CountyZone 2
Paulding CountyZone 2
Peach CountyZone 3
Pickens CountyZone 2
Pierce CountyZone 3
Pike CountyZone 2
Polk CountyZone 3
Pulaski CountyZone 3
Putnam CountyZone 3
Quitman CountyZone 3
Rabun CountyZone 2
Randolph CountyZone 3
Richmond CountyZone 2
Rockdale CountyZone 2
Schley CountyZone 3
Screven CountyZone 3
Seminole CountyZone 3
Spalding CountyZone 2
Stephens CountyZone 2
Stewart CountyZone 3
Sumter CountyZone 3
Talbot CountyZone 2
Taliaferro CountyZone 3
Tattnall CountyZone 3
Taylor CountyZone 3
Telfair CountyZone 3
Terrell CountyZone 3
Thomas CountyZone 3
Tift CountyZone 3
Toombs CountyZone 3
Towns CountyZone 2
Treutlen CountyZone 3
Troup CountyZone 2
Turner CountyZone 3
Twiggs CountyZone 3
Union CountyZone 2
Upson CountyZone 2
Walker CountyZone 2
Walton CountyZone 2
Ware CountyZone 3
Warren CountyZone 3
Washington CountyZone 3
Wayne CountyZone 3
Webster CountyZone 3
Wheeler CountyZone 3
White CountyZone 2
Whitfield CountyZone 2
Wilcox CountyZone 3
Wilkes CountyZone 3
Wilkinson CountyZone 3
Worth 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