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If you have question on this site, please contact Dean Wilson
206-296-8252.

Swimming Beach Bacteria and Algal Toxin Levels, and Water Temperature

The following map depicts the locations of current swimming beach sampling stations in King County. To view the current bacteria and temperature data, either click on the map or select from the list of beaches. Units of bacteria data are cfu/100mL. To view historical data and trends, visit our archived bacteria and temperature data page. Current beach closures, if any, are listed right hand column of this page and will appear as red dots on the map.

Andrews Bay - Seward Park
Beaver Lake Beach
Echo Lake
Enatai Beach
Gene Coulon
Hidden Lake
Houghton Beach
Idylwood Beach
Idylwood Creek
John's Creek
Juanita Beach
Juanita Creek
Kennydale Beach
Lake Sammamish Beach
Lake Wilderness Beach
Luther Burbank Beach
Madison Park Beach
Madrona Beach
Magnuson Beach
Magnuson Beach Off Leash Area
Marina Park Beach
Matthews Beach
Meydenbauer Bay Beach
Mount Baker Beach
NE 130th Pl
Newcastle Beach
Pine Lake
Pritchard Island Beach
Rattlesnake Lake
Thornton Creek
Waverly Park Beach
West Green Lake
Map icon for closed beach  Closed beach   Map icon for open beach  Open beach   Map icon for stream  Stream


Related safety article: Drowning doesn't look like drowning.

Swimmer's Itch Information

Visit Public Health -Seattle & King County  Swimmer's Itch Page to learn about swimmer's itch.

We recommend avoiding contact with water from the following creeks: John's Creek, Juanita Creek, Ravenna Creek, Idylwood Creek, and Thornton Creek.

Current Beach Closures:

All sampled beaches are open.