Eagle Harbor is an unincorporated community and census-designated place located on the north side of the Keweenaw Peninsula within Eagle Harbor Township, Keweenaw County in the U.S. State of Michigan. Its population was 69 as of the 2020 census. M-26 passes through this community. This hamlet was especially popular with the sailors in days past, as it had a good steamboat landing and is about equally distant from Sault Sainte Marie, Michigan, and Duluth, Minnesota. It was the first stop for supplies for the many boats on Lake Superior.