Administratively, some smaller islands are included within these prefectures, notably including the Ogasawara Islands, Sado Island, Izu Ōshima, and Awaji Island.
Administrativamente, algunhas illas máis pequenas inclúense dentro destas prefecturas, incluíndo as Illas de Ogasawara, Illa de Sado, Izu Shima e Illa de Awaji.