The Dodecanese have inhabited islands.
Agathonísi is a small Greek island and municipality located at the northernmost point of the Dodecanese in Greece . Between them is the small settlement of Agios Georgios ( Saint George ) , which forms the island 's only harbor and consists of a few hotels and restaurants . Dodecanese . Of the others , Kos and Patmos are historically the more important ; the remaining eleven are Agathonisi , Astypalaia , Kalymnos , Karpathos , Kasos , Leipsoi , Leros , Nisyros , Symi , Tilos , and Kastellorizo . Kalymnos , is a Greek island and municipality in the southeastern Aegean Sea . In 2011 the island had a population of 16,001 , making it the third most populous island of the Dodecanese , after Kos and Rhodes .