 Tenakee Springs is located on the northern part of Chichagof Island at (57.778095, -135.219618), on the north side of Tenakee Inlet, about west of its mouth in Chatham Strait.According to the United States Census Bureau, the city has a total area of , of which are land and , or 25.78%, are water.Tenakee Springs first appeared on the 1910 U.S. Census as the unincorporated village of "Tenakee."