Arkansas Radon Zone Map
Counties colored by EPA radon zone. Red = Zone 1, Orange = Zone 2, Green = Zone 3.
All 75 Counties — By Radon Risk
| County | EPA Zone | Tests | % Above 4 pCi/L |
| Baxter |
Moderate |
13 |
46.2% |
| Benton |
Moderate |
26 |
38.5% |
| Boone |
Moderate |
9 |
— |
| Carroll |
Moderate |
4 |
— |
| Fulton |
Moderate |
— |
— |
| Garland |
Moderate |
19 |
31.6% |
| Independence |
Moderate |
6 |
— |
| Izard |
Moderate |
— |
— |
| Marion |
Moderate |
— |
— |
| Montgomery |
Moderate |
— |
— |
| Randolph |
Moderate |
4 |
— |
| Searcy |
Moderate |
— |
— |
| Sharp |
Moderate |
4 |
— |
| Stone |
Moderate |
— |
— |
| Arkansas |
Low |
6 |
— |
| Ashley |
Low |
5 |
— |
| Bradley |
Low |
— |
— |
| Calhoun |
Low |
— |
— |
| Chicot |
Low |
4 |
— |
| Clark |
Low |
— |
— |
| Clay |
Low |
4 |
— |
| Cleburne |
Low |
6 |
— |
| Cleveland |
Low |
— |
— |
| Columbia |
Low |
5 |
— |
| Conway |
Low |
4 |
— |
| Craighead |
Low |
15 |
40% |
| Crawford |
Low |
9 |
— |
| Crittenden |
Low |
8 |
— |
| Cross |
Low |
6 |
— |
| Dallas |
Low |
— |
— |
| Desha |
Low |
— |
— |
| Drew |
Low |
— |
— |
| Faulkner |
Low |
15 |
40% |
| Franklin |
Low |
— |
— |
| Grant |
Low |
— |
— |
| Greene |
Low |
7 |
— |
| Hempstead |
Low |
— |
— |
| Hot Spring |
Low |
6 |
— |
| Howard |
Low |
— |
— |
| Jackson |
Low |
— |
— |
| Jefferson |
Low |
13 |
30.8% |
| Johnson |
Low |
— |
— |
| Lafayette |
Low |
— |
— |
| Lawrence |
Low |
4 |
— |
| Lee |
Low |
— |
— |
| Lincoln |
Low |
— |
— |
| Little River |
Low |
— |
— |
| Logan |
Low |
— |
— |
| Lonoke |
Low |
9 |
— |
| Madison |
Low |
— |
— |
| Miller |
Low |
8 |
50% |
| Mississippi |
Low |
6 |
— |
| Monroe |
Low |
— |
— |
| Nevada |
Low |
— |
— |
| Newton |
Low |
— |
— |
| Ouachita |
Low |
5 |
— |
| Perry |
Low |
— |
— |
| Phillips |
Low |
4 |
— |
| Pike |
Low |
— |
— |
| Poinsett |
Low |
7 |
— |
| Polk |
Low |
— |
— |
| Pope |
Low |
7 |
— |
| Prairie |
Low |
— |
— |
| Pulaski |
Low |
63 |
22.2% |
| Saline |
Low |
17 |
41.2% |
| Scott |
Low |
— |
— |
| Sebastian |
Low |
17 |
41.2% |
| Sevier |
Low |
— |
— |
| St. Francis |
Low |
4 |
— |
| Union |
Low |
9 |
— |
| Van Buren |
Low |
— |
— |
| Washington |
Low |
23 |
34.8% |
| White |
Low |
10 |
40% |
| Woodruff |
Low |
— |
— |
| Yell |
Low |
— |
— |
Sources: EPA Map of Radon Zones, CDC Environmental Health Tracking Network
Frequently Asked Questions
How many counties in Arkansas have high radon risk?
Arkansas has 0 counties classified as EPA Zone 1 (high radon risk), 14 as Zone 2 (moderate), and 61 as Zone 3 (low risk).
Is radon a problem in Arkansas?
The EPA recommends all homes in Arkansas be tested for radon, regardless of which zone they're in.
How do I check radon levels for my Arkansas 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.