Available Radon Information

Within this site you will find information about radon levels of every Washington county. This includes radon level maps and radon level graphs specific to Washington.

County Levels
State News

State Radon Officer

(800) 525-0127
Washington State Department of Health Radon Program
PO BOX 47827
Olympia WA, 98504-7827

About Radon Levels In Washington

Additional information about radon levels in Washington may be available through the Washington Indoor Radon Program Website.