Swimming Beach Bacteria and Temperature Data, King County, Washington

The following map and list indicates the historical swimming beach sampling stations in King County. To view past bacteria data, select a beach from the list or click on the map. Units of fecal coliform data are cfu/100mL. To view current data, view our current data pages.

Andrews Bay - Seward Park
Angle Lake Beach
Clarke Beach
East Gene Coulon
East Green Lake
East Juanita Beach
Echo Lake
Fivemile Lake
Gene Coulon
Groveland Beach
Hidden Lake
Houghton Beach
Idylwood Beach
Idylwood Creek
John's Creek
Juanita Beach
Juanita Creek
Lake Sammamish Beach
Lake Wilderness Beach
Logboom Park
Luther Burbank Beach
Madison Park Beach
Madrona Beach
Magnuson Beach
Magnuson Beach Off Leash Area
Matthews Beach
Medina Beach
Meydenbauer Bay Beach
Mount Baker Beach
NE 130th Pl
Newcastle Beach
North Luther Burbank Beach
North Matthews Beach
OO Denny Beach
Pine Lake
Pritchard Island Beach
Rattlesnake Lake
South Luther Burbank Beach
South Matthews Beach
South Matthews Beach
Thornton Creek
West Gene Coulon
West Green Lake
West Juanita Beach
Wilderness Lake
Yarrow Bay

Click a point on this Map to view data for an individual beach, or follow one of the links in the list of beaches