One of the northernmost islands of the Dodecanese complex, Patmos has a population of 3,283 (2021) and an area of . The highest point is Profitis Ilias, above sea level. The municipality of Patmos, which includes the offshore islands of Arkoi (pop. 44), Marathos (pop. 5), and several uninhabited islets, has a total population of 3,047 (2011 census) and a combined land area of . It is part of the Kalymnos regional unit.
One of the northernmost islands of the Dodecanese complex Patmos has a population of 3283 (2021) and an area of  The highest point is Profitis Ilias above sea level The municipality of Patmos which includes the offshore islands of Arkoi (pop 44) Marathos (pop 5) and several uninhabited islets has a total population of 3047 (2011 census) and a combined land area of  It is part of the Kalymnos regional unit