Lake Sammamish

Lake Sammamish is the sixth largest lake in Washington and the second largest in King County. It is a major source of recreation for fisherman, boaters, and water sports enthusiasts. There are both State, County and private parks along the shore, including:

Marymoor Park (north end)

 Lake Sammamish State Park (south end)

 Idylwood Park (northwest shore)

 Vasa Park (southwest shore)

Camp Sambica (south end)

East Lake Sammamish Trail (running along the east shore)

Sammamish Landing

Lake Sammamish is 98 square miles or 4,897 acres. It has an average depth of 58 feet with a maximum depth of 105 feet and is 8 miles long. Its largest source of inflow is Issaquah Creek at the south end with its primary outflow at the north end via the Sammamish Slough.

For current lake conditions, click here to see three live web cam views.

Source: King County, Natural Resources and Parks, Water and Land Resources Division

Lake & Community Events

Lake Sammamish is host to a number of events annually, including:

Marymoor Park Summer Concert series

o    At Marymoor Park

o    On a barge in the Sunken Forest at the south end of the lake

Lake Sammamish Organizations

There are several organizations that call Lake Sammamish their home, including: