Florida Radon Zone Map
Counties colored by EPA radon zone. Red = Zone 1, Orange = Zone 2, Green = Zone 3.
All 67 Counties — By Radon Risk
| County | EPA Zone | Tests | % Above 4 pCi/L |
|---|
| Alachua |
Moderate |
43 |
30.2% |
| Citrus |
Moderate |
41 |
53.7% |
| Columbia |
Moderate |
14 |
35.7% |
| Hillsborough |
Moderate |
219 |
36.1% |
| Leon |
Moderate |
34 |
32.4% |
| Marion |
Moderate |
92 |
45.7% |
| Miami-Dade |
Moderate |
449 |
22.5% |
| Polk |
Moderate |
122 |
37.7% |
| Union |
Moderate |
7 |
— |
| Baker |
Low |
4 |
— |
| Bay |
Low |
27 |
55.6% |
| Bradford |
Low |
4 |
— |
| Brevard |
Low |
142 |
38.7% |
| Broward |
Low |
332 |
27.4% |
| Calhoun |
Low |
— |
— |
| Charlotte |
Low |
59 |
32.2% |
| Clay |
Low |
37 |
43.2% |
| Collier |
Low |
77 |
39% |
| DeSoto |
Low |
7 |
— |
| Dixie |
Low |
6 |
— |
| Duval |
Low |
155 |
34.8% |
| Escambia |
Low |
53 |
41.5% |
| Flagler |
Low |
32 |
37.5% |
| Franklin |
Low |
— |
— |
| Gadsden |
Low |
8 |
50% |
| Gilchrist |
Low |
— |
— |
| Glades |
Low |
— |
— |
| Gulf |
Low |
4 |
— |
| Hamilton |
Low |
— |
— |
| Hardee |
Low |
— |
— |
| Hendry |
Low |
4 |
— |
| Hernando |
Low |
51 |
45.1% |
| Highlands |
Low |
28 |
39.3% |
| Holmes |
Low |
— |
— |
| Indian River |
Low |
43 |
51.2% |
| Jackson |
Low |
11 |
36.4% |
| Jefferson |
Low |
— |
— |
| Lafayette |
Low |
— |
— |
| Lake |
Low |
85 |
38.8% |
| Lee |
Low |
154 |
35.1% |
| Levy |
Low |
12 |
33.3% |
| Liberty |
Low |
— |
— |
| Madison |
Low |
— |
— |
| Manatee |
Low |
85 |
31.8% |
| Martin |
Low |
38 |
42.1% |
| Monroe |
Low |
17 |
35.3% |
| Nassau |
Low |
16 |
37.5% |
| Okaloosa |
Low |
33 |
45.5% |
| Okeechobee |
Low |
7 |
— |
| Orange |
Low |
179 |
31.3% |
| Osceola |
Low |
44 |
43.2% |
| Palm Beach |
Low |
319 |
29.5% |
| Pasco |
Low |
117 |
41.9% |
| Pinellas |
Low |
215 |
49.3% |
| Putnam |
Low |
13 |
53.8% |
| Santa Rosa |
Low |
30 |
43.3% |
| Sarasota |
Low |
126 |
37.3% |
| Seminole |
Low |
71 |
33.8% |
| St. Johns |
Low |
47 |
42.6% |
| St. Lucie |
Low |
67 |
37.3% |
| Sumter |
Low |
49 |
36.7% |
| Suwannee |
Low |
7 |
57.1% |
| Taylor |
Low |
— |
— |
| Volusia |
Low |
138 |
39.1% |
| Wakulla |
Low |
4 |
— |
| Walton |
Low |
14 |
28.6% |
| Washington |
Low |
5 |
— |
Sources: EPA Map of Radon Zones, CDC Environmental Health Tracking Network
Frequently Asked Questions
How many counties in Florida have high radon risk?
Florida has 0 counties classified as EPA Zone 1 (high radon risk), 9 as Zone 2 (moderate), and 58 as Zone 3 (low risk).
Is radon a problem in Florida?
The EPA recommends all homes in Florida be tested for radon, regardless of which zone they're in.
How do I check radon levels for my Florida address?
Enter your ZIP code in the search box above to see your county's EPA radon zone and available testing data. For your specific home's radon level, you'll need a radon test kit.