Radon in Georgia

About 1 in 4 homes tested in Georgia were at or above the EPA action level of 4 pCi/L.

24,063 homes tested, 2008–2017
  • Below 2 pCi/L: 44%
  • 2 to 4 pCi/L: 31%
  • 4 pCi/L or more: 24%
The line marks the EPA action level, 4 pCi/L.

The EPA puts 4 of Georgia's 159 counties in Zone 1, its highest radon category, 55 in Zone 2 and 100 in Zone 3.

Every county in Georgia

Sorted by the share of homes tested at or above 4 pCi/L. Select a county for local details and costs.

CountyHomes testedAt or above 4MedianEPA zone
Peach County2 tests––3
Chattooga County10 tests––3
Polk County16 tests––3
Crawford County2 tests––3
Early County2 tests––3
Twiggs County2 tests––3
Barrow County
48%3.8 pCi/L2
Douglas County
47%3.7 pCi/L2
Gilmer County
47%3.8 pCi/L2
Lumpkin County
46%3.6 pCi/L2
Fannin County
45%3.5 pCi/L2
Union County
45%3.3 pCi/L2
Walton County
42%3.3 pCi/L2
Carroll County
41%3.4 pCi/L2
Hart County
40%3.4 pCi/L2
Jackson County
40%3.2 pCi/L2
Lamar County10 tests––2
Hall County
40%3.2 pCi/L2
Pike County
39%3.2 pCi/L2
Pickens County
38%3.1 pCi/L2
Habersham County
38%3.1 pCi/L2
Franklin County
37%2.7 pCi/L2
Banks County
35%2.8 pCi/L2
Troup County
34%2.9 pCi/L2
Spalding County
34%2.9 pCi/L2
Macon County2 tests––3
Oglethorpe County
33%2.5 pCi/L2
Gwinnett County
32%2.7 pCi/L1
Towns County
32%2.8 pCi/L2
Haralson County17 tests––2
Gordon County
31%2.1 pCi/L3
Fayette County
31%2.6 pCi/L2
Putnam County
30%2.2 pCi/L3
Rockdale County
29%2.3 pCi/L2
Jones County
29%2.2 pCi/L3
Jasper County19 tests––2
Heard County15 tests––2
Madison County
26%2.4 pCi/L2
Rabun County
26%2.0 pCi/L2
Paulding County
26%2.3 pCi/L2
Newton County
26%2.1 pCi/L2
Stephens County
25%2.2 pCi/L2
White County
25%2.7 pCi/L2
Bartow County
25%2.2 pCi/L2
Murray County10 tests––3
Monroe County
23%1.6 pCi/L2
Henry County
23%2.1 pCi/L2
Walker County
23%1.6 pCi/L2
Dawson County
22%2.1 pCi/L2
Fulton County
21%2.2 pCi/L1
Whitfield County
21%1.2 pCi/L2
Clayton County
20%1.6 pCi/L2
Baldwin County14 tests––3
Sumter County4 tests––3
Upson County14 tests––2
Wilkes County9 tests––3
Floyd County
20%1.9 pCi/L2
Coweta County
19%2.0 pCi/L2
Oconee County
19%1.8 pCi/L2
Catoosa County
19%1.3 pCi/L2
Elbert County
19%1.9 pCi/L2
DeKalb County
18%1.8 pCi/L1
Laurens County17 tests––3
Cherokee County
18%2.0 pCi/L2
Dade County14 tests––3
Greene County
18%1.9 pCi/L2
Morgan County
17%1.5 pCi/L2
Randolph County6 tests––3
Cobb County
16%1.9 pCi/L1
Harris County
16%1.9 pCi/L2
Thomas County11 tests––3
Forsyth County
13%1.9 pCi/L2
Clarke County
13%1.5 pCi/L2
Houston County
11%1.4 pCi/L3
Columbia County
11%0.9 pCi/L3
McDuffie County12 tests––3
Butts County13 tests––2
Muscogee County
6%0.9 pCi/L3
Meriwether County18 tests––2
Bibb County
1%0.9 pCi/L3
Ben Hill County2 tests––3
Berrien County1 tests––3
Bleckley County2 tests––3
Brooks County3 tests––3
Bryan County1 tests––3
Bulloch County12 tests––3
Burke County4 tests––3
Calhoun County1 tests––3
Camden County7 tests––3
Charlton County1 tests––3
Chatham County
0%0.6 pCi/L3
Clinch County1 tests––3
Coffee County5 tests––3
Colquitt County2 tests––3
Cook County1 tests––3
Crisp County1 tests––3
Decatur County3 tests––3
Dodge County1 tests––3
Dougherty County11 tests––3
Effingham County4 tests––3
Emanuel County1 tests––3
Glynn County10 tests––3
Hancock County3 tests––3
Irwin County1 tests––3
Jefferson County3 tests––3
Jenkins County1 tests––3
Johnson County1 tests––3
Lee County4 tests––3
Liberty County3 tests––3
Lincoln County1 tests––3
Lowndes County8 tests––3
Marion County1 tests––3
McIntosh County5 tests––3
Pierce County12 tests––3
Pulaski County6 tests––3
Richmond County
0%1.4 pCi/L2
Schley County2 tests––3
Screven County2 tests––3
Talbot County1 tests––2
Telfair County2 tests––3
Tift County4 tests––3
Toombs County1 tests––3
Ware County13 tests––3
Warren County2 tests––3
Washington County1 tests––3
Wayne County2 tests––3
Wheeler County1 tests––3
Wilcox County2 tests––3
Wilkinson County2 tests––3
Appling CountyNo data––3
Atkinson CountyNo data––3
Bacon CountyNo data––3
Baker CountyNo data––3
Brantley CountyNo data––3
Candler CountyNo data––3
Chattahoochee CountyNo data––3
Clay CountyNo data––3
Dooly CountyNo data––3
Echols CountyNo data––3
Evans CountyNo data––3
Glascock CountyNo data––3
Grady CountyNo data––3
Jeff Davis CountyNo data––3
Lanier CountyNo data––3
Long CountyNo data––3
Miller CountyNo data––3
Mitchell CountyNo data––3
Montgomery CountyNo data––3
Quitman CountyNo data––3
Seminole CountyNo data––3
Stewart CountyNo data––3
Taliaferro CountyNo data––3
Tattnall CountyNo data––3
Taylor CountyNo data––3
Terrell CountyNo data––3
Treutlen CountyNo data––3
Turner CountyNo data––3
Webster CountyNo data––3
Worth CountyNo data––3

"–" means fewer than 20 tests or no lab data, too few for a reliable figure.

Sources

Last updated October 2026. How we calculate these numbers.