Search Radon Levels By State

Alabama

Average Level: 3.9 pCi/L

Alaska

Average Level: 10.7 pCi/L

Arizona

Average Level: 1.9 pCi/L

Arkansas

Average Level: 2.5 pCi/L

California

Average Level: 2.3 pCi/L

Colorado

Average Level: 6.8 pCi/L

Connecticut

Average Level: 3.4 pCi/L

Delaware

Average Level: 2.4 pCi/L

Florida

Average Level: 1.8 pCi/L

Georgia

Average Level: 2.3 pCi/L

Hawaii

Idaho

Average Level: 7.3 pCi/L

Illinois

Average Level: 5.3 pCi/L

Indiana

Average Level: 4.7 pCi/L

Iowa

Average Level: 6.1 pCi/L

Kansas

Average Level: 4.9 pCi/L

Kentucky

Average Level: 7.4 pCi/L

Louisiana

Average Level: 1.1 pCi/L

Maine

Average Level: 5.9 pCi/L

Maryland

Average Level: 5.4 pCi/L

Massachusetts

Average Level: 3.9 pCi/L

Michigan

Average Level: 3.5 pCi/L

Minnesota

Average Level: 4.6 pCi/L

Mississippi

Average Level: 1.2 pCi/L

Missouri

Average Level: 4.3 pCi/L

Montana

Average Level: 7.4 pCi/L

Nebraska

Average Level: 5.2 pCi/L

Nevada

Average Level: 3.4 pCi/L

New Hampshire

Average Level: 5.6 pCi/L

New Jersey

Average Level: 4.4 pCi/L

New Mexico

Average Level: 3.9 pCi/L

New York

Average Level: 4.2 pCi/L

North Carolina

Average Level: 4 pCi/L

North Dakota

Average Level: 6 pCi/L

Ohio

Average Level: 7.8 pCi/L

Oklahoma

Average Level: 2.5 pCi/L

Oregon

Average Level: 3.1 pCi/L

Pennsylvania

Average Level: 8.6 pCi/L

Rhode Island

Average Level: 4.3 pCi/L

South Carolina

Average Level: 2.4 pCi/L

South Dakota

Average Level: 9.6 pCi/L

Tennessee

Average Level: 4.8 pCi/L

Texas

Average Level: 2.1 pCi/L

Utah

Average Level: 4.4 pCi/L

Vermont

Average Level: 3.7 pCi/L

Virginia

Average Level: 3.6 pCi/L

Washington

Average Level: 7.5 pCi/L

West Virginia

Average Level: 6.1 pCi/L

Wisconsin

Average Level: 5.7 pCi/L

Wyoming

Average Level: 5 pCi/L