Sinclair Island (Washington)

Sinclair Island is an island in the U.S. state of Washington. It is a part of, and lies off the western shore of mainland Skagit County. The island has a land area of 4.109 km² (1.586 sq mi) and is home to only a few private residents.

Map of Sinclair Island, Washington, USA

The name Sinclair was given by Charles Wilkes during the Wilkes Expedition of 1838-1842. It honors Arthur Sinclair, who was captain of General Pike during a naval battle of the War of 1812.