This page provides our best pick of websites for lake information locally, regionally, at the state level and nationally.

Local lake organizations

Lake Sawyer Community Club

Friends of Green Lake

Save Lake Sammamish

Regional lake organizations

North American Lakes Management Society (NALMS)

Washington State Lake Protection Association (WALPA)

Washington State agencies

Washington State Department of Ecology, Aquatic Plants and Lakes Home Page

Washington StateFreshwater Algae Control Program

Washington StateDepartment of Ecology Water Quality Assessment

Federal agencies

Army Corps of Engineers Lake Washington Water Level Graphs

Army Corps of Engineers Hiram Chittenden Locks

Center of Disease Control - Swimmer's itch

U.S. Fish and Wildlife Service (USFWS)

U.S. Geological Survey (USGS)

For questions about lakes in King County, please contact lakes@kingcounty.gov or call the Water and Land Resources Division front desk at 206-477-4800.