[4] The township is located on the Keweenaw Peninsula and also includes the southwestern portion of Isle Royale National Park.

[5] Including water area, Eagle Harbor Township is the second-largest municipality in the state by total area after McMillan Township in Luce County.

Among its population, 22.6% were of German, 21.8% English, 15.2% Polish, 11.1% Irish and 5.8% French ancestry.

At the 2021 American Community Survey, 40.2% were of English, 37.7% German, 5.9% Irish, 5.2% Italian, and 4.2% French ancestry.

30.3% of all households were made up of individuals, and 14.8% had someone living alone who was 65 years of age or older.