evidence: Serranilla Bank - Status: Unincorporated and unorganized - Location: the Caribbean and North Atlantic - Area: 140 sq miles (350 sq km) Of the eleven territories above, Serranilla Bank and Bajo Nuevo Bank are administered by Colombia. Palmyra Atoll is the only incorporated unorganized territory of the U.S. Since it remains uninhabited its status is of little significance. The Atoll was acquired by the U.S. as part of the acquisition process of the chain of Hawaiian islands. At the time, Palmyra Atoll was not made part of the Hawaiian statehood, so, it was made an incorporated territory.