Kos

Kos
Κως
Aerial view of Kos town
Kos
Location within the region
Coordinates: 36°51′N 27°14′E / 36.850°N 27.233°E / 36.850; 27.233
CountryGreece
Administrative regionSouth Aegean
Regional unitKos
Area
  Municipality
295.3 km2 (114.0 sq mi)
  Municipal unit67.2 km2 (25.9 sq mi)
Highest elevation
843 m (2,766 ft)
Lowest elevation
0 m (0 ft)
Population
 (2021)
  Municipality
37,089
  Density130/km2 (330/sq mi)
  Municipal unit
21,430
  Municipal unit density320/km2 (830/sq mi)
Demonym(s)Koan, Coan
Time zoneUTC+2 (EET)
  Summer (DST)UTC+3 (EEST)
Postal code
853 xx
Area code(s)2242
Vehicle registrationΚΧ, EA
Websitewww.kos.gr

Kos or Cos (/kɒs, kɔːs/; Greek: Κως [kos]) is a Greek island, which is part of the Dodecanese island chain in the southeastern Aegean Sea. Kos is the third largest island of the Dodecanese, after Rhodes and Karpathos; it has a population of 37,089 (2021 census), making it the second most populous of the Dodecanese after Rhodes. The island measures 42.1 by 11.5 kilometres (26 by 7 miles). Administratively, Kos constitutes a municipality within the Kos regional unit, which is part of the South Aegean region. The principal town of the island and seat of the municipality is the town of Kos.