Lake Sammamish is a lake in King County, Washington. Its current pool elevation is about 26 ft (USGS gauge 12122000, 2026-06-24 04:15). We never estimate missing readings — a “—” means no current source.
Full conditions, things to do, and where to stay, eat, and rent on the Lake Sammamish guide. More: boat rentals · cabins & rentals · fishing · things to do.