Georgia: 159 counties covered
Of 159 rated Georgia counties, 4 are in EPA's highest radon-potential zone (Zone 1) — but every county page links to testing guidance regardless of zone, because a county rating is a county-wide average, not a reading for any one house.
- Fulton County
- Gwinnett County
- Cobb County
- DeKalb County
- Chatham County
- Clayton County
- Cherokee County
- Forsyth County
- Henry County
- Hall County
- Richmond County
- Muscogee County
- Paulding County
- Houston County
- Columbia County
- Coweta County
- Bibb County
- Douglas County
- Clarke County
- Carroll County
- Fayette County
- Newton County
- Lowndes County
- Bartow County
- Walton County
- Whitfield County
- Floyd County
- Rockdale County
- Barrow County
- Jackson County
- Glynn County
- Bulloch County
- Dougherty County
- Effingham County
- Troup County
- Spalding County
- Walker County
- Catoosa County
- Liberty County
- Gordon County
- Camden County
- Bryan County
- Laurens County
- Habersham County
- Colquitt County
- Thomas County
- Oconee County
- Polk County
- Coffee County
- Baldwin County
- Tift County
- Murray County
- Harris County
- Pickens County
- Ware County
- Lumpkin County
- Lee County
- Dawson County
- Gilmer County
- Madison County
- Haralson County
- Wayne County
- Monroe County
- White County
- Decatur County
- Peach County
- Jones County
- Sumter County
- Upson County
- Hart County
- Union County
- Stephens County
- Toombs County
- Butts County
- Grady County
- Fannin County
- Chattooga County
- Franklin County
- Burke County
- Tattnall County
- Putnam County
- Emanuel County
- Morgan County
- McDuffie County
- Meriwether County
- Greene County
- Lamar County
- Pierce County
- Pike County
- Long County
- Mitchell County
- Banks County
- Worth County
- Elbert County
- Washington County
- Dodge County
- Crisp County
- Brantley County
- Appling County
- Berrien County
- Cook County
- Rabun County
- Jasper County
- Ben Hill County
- Brooks County
- Oglethorpe County
- Dade County
- Jeff Davis County
- Jefferson County
- Screven County
- Towns County
- Charlton County
- Bleckley County
- Crawford County
- Heard County
- Macon County
- McIntosh County
- Dooly County
- Candler County
- Bacon County
- Telfair County
- Evans County
- Lanier County
- Early County
- Pulaski County
- Wilkes County
- Seminole County
- Johnson County
- Irwin County
- Turner County
- Wilcox County
- Jenkins County
- Terrell County
- Hancock County
- Wilkinson County
- Montgomery County
- Chattahoochee County
- Atkinson County
- Lincoln County
- Taylor County
- Twiggs County
- Marion County
- Wheeler County
- Clinch County
- Treutlen County
- Randolph County
- Miller County
- Talbot County
- Calhoun County
- Warren County
- Stewart County
- Schley County
- Echols County
- Glascock County
- Clay County
- Baker County
- Quitman County
- Webster County
- Taliaferro County