Area: 4.648 km2
Coastline length: 12.764 km
Population: 54
Island capital and its population: Telendos (54)
Administrative structure: Region of South Aegean, Prefecture of the Dodecanese, Province of Kalymnos, Municipality of Kalymnos
Archaeological sites and monuments: Relics of the Roman and Byzantine times, Ancient theatre hewn from the rock, Fortifications of historical times at the north of the island, Ruins of three Early Christian basilicas, Remains of three thermae complexes of the Early Christian period, Remains of an Early Christian settlement, Early Christian burial ground at the site of Pefki and Tholaria
Natural monuments: The island has been included in the European netwrok "NATURA 2000" and has been declared an Important Bird Area of Greece
Religious feasts: Dormition of Virgin Mary at the church of Zoodochos Pigi (August 15th)