Tap & Air

EPA radon zones

Florida radon map: every county's zone

0 of Florida's 67 counties are EPA radon zone 1 (predicted average above 4 pCi/L), 9 are zone 2 and 58 are zone 3. High readings occur in every zone, so EPA recommends testing every home.
Alachua CountyZone 2
Baker CountyZone 3
Bay CountyZone 3
Bradford CountyZone 3
Brevard CountyZone 3
Broward CountyZone 3
Calhoun CountyZone 3
Charlotte CountyZone 3
Citrus CountyZone 2
Clay CountyZone 3
Collier CountyZone 3
Columbia CountyZone 2
DeSoto CountyZone 3
Dixie CountyZone 3
Duval CountyZone 3
Escambia CountyZone 3
Flagler CountyZone 3
Franklin CountyZone 3
Gadsden CountyZone 3
Gilchrist CountyZone 3
Glades CountyZone 3
Gulf CountyZone 3
Hamilton CountyZone 3
Hardee CountyZone 3
Hendry CountyZone 3
Hernando CountyZone 3
Highlands CountyZone 3
Hillsborough CountyZone 2
Holmes CountyZone 3
Indian River CountyZone 3
Jackson CountyZone 3
Jefferson CountyZone 3
Lafayette CountyZone 3
Lake CountyZone 3
Lee CountyZone 3
Leon CountyZone 2
Levy CountyZone 3
Liberty CountyZone 3
Madison CountyZone 3
Manatee CountyZone 3
Marion CountyZone 2
Martin CountyZone 3
Miami-Dade CountyZone 2
Monroe CountyZone 3
Nassau CountyZone 3
Okaloosa CountyZone 3
Okeechobee CountyZone 3
Orange CountyZone 3
Osceola CountyZone 3
Palm Beach CountyZone 3
Pasco CountyZone 3
Pinellas CountyZone 3
Polk CountyZone 2
Putnam CountyZone 3
Santa Rosa CountyZone 3
Sarasota CountyZone 3
Seminole CountyZone 3
St. Johns CountyZone 3
St. Lucie CountyZone 3
Sumter CountyZone 3
Suwannee CountyZone 3
Taylor CountyZone 3
Union CountyZone 2
Volusia CountyZone 3
Wakulla CountyZone 3
Walton CountyZone 3
Washington CountyZone 3

How much does radon mitigation cost?

Most single-family systems cost $800 to $2,500 installed, depending on foundation type and how many suction points are needed. A follow-up test confirms the system works.

What do the zones mean?

EPA radon zones describe counties, not houses. Zone 1 counties have a predicted average indoor level above 4 picocuries per liter (pCi/L), Zone 2 between 2 and 4, Zone 3 below 2. Homes with high levels are found in every zone, which is why EPA recommends that every home be tested, and fixed at 4 pCi/L or above.

Florida cities: water and radon

Source: EPA Map of Radon Zones.