States With The Highest Levels of Radon

In the United States, the top ten states with the highest radon levels are as follows; Alaska, South Dakota, Pennsylvania, Ohio, Washington, Kentucky, Montana, Idaho, Colorado, and Iowa.

We here in Alaska are in the state with the highest radon levels in the United States at an average of 10.7 pCi/L. The State of South Dakota is the second state with the highest radon levels at 9.6 pCi/L. Pennsylvania has the third highest radon levels at 8.6 pCi/L.  The states of Ohio and Washington have average radon levels of 7.8 pCi/L and 7.5 pCi/L, respectively. Kentucky and Montana share a radon level of 7.4 pCi/L, and Idaho follows very closely with 7.3 pCi/L. The State of Colorado is in ninth place among states with the highest radon levels with 6.8 pCi/L. Iowa rounds out the top ten at the #10 state with the average radon levels of 6.1 pCi/L.

The top ten U.S. states with the highest radon levels are:

1. Alaska – 10.7 pCi/L
2. South Dakota – 9.6 pCi/L
3. Pennsylvania – 8.6 pCi/L
4. Ohio – 7.8 pCi/L
5. Washington – 7.5 pCi/L
6. Kentucky – 7.4 pCi/L
7. Montana – 7.4 pCi/L
8. Idaho – 7.3 pCi/L
9. Colorado – 6.8 pCi/L
10. Iowa – 6.1 pCi/L

Luckily in Alaska, we have Anchorage Radon Testing and Mitigation.  Please feel free to contact us with any radon questions or situations that you want to have tested.