The area was historically inhabited by the Suquamish people, many of whom moved to the Port Madison Indian Reservation after the signing of the Treaty of Point Elliott in 1855. Poulsbo was founded in the 1880s by Norwegian immigrant Jørgen Eliason, who was joined by other Scandinavians who relocated from the Midwestern states. They were drawn here by the availability of land, by the area's rich resources, and by a landscape similar to their native home. The settlement was connected by boats to other areas of the region, including the Puget Sound mosquito fleet, which was eventually usurped by highways built in the early 20th century.