Ios

This article is about the Greek island. For the operating system, see iOS. For other uses, see IOS (disambiguation).
Ios
Ίος, Νιός
Municipality
Clockwise from top: Church of Saint Irene, Odysseas Elytis Theatre, Cathedral Church Of Ios, Chora Hill, Windmills in Chora
Clockwise from top: Church of Saint Irene, Odysseas Elytis Theatre, Cathedral Church Of Ios, Chora Hill, Windmills in Chora
Official seal of Ios
Seal
Ios is located in Greece
Ios
Ios
Location within the region
Coordinates: 36°43′0″N 25°20′11″E / 36.71667°N 25.33639°E / 36.71667; 25.33639
CountryGreece
Administrative regionSouth Aegean
Regional unitThira
Municipality established1835
SeatChora
Government
 • MayorGkikas Gkikas[1]
Area
 • Municipality109.0 km2 (42.1 sq mi)
Highest elevation
713 m (2,339 ft)
Lowest elevation
0 m (0 ft)
Population
 (2021)[2]
 • Municipality2,299
 • Density21/km2 (55/sq mi)
Demonym(s)Ιήτης (Iitis)[3] (official)
Ιέτης (Ietis)[4] (Ancient Alternative)
Νιώτης (Niotis) (local)
Iitian or Ietian(anglicised)
Time zoneUTC+2 (EET)
 • Summer (DST)UTC+3 (EEST)
Postal code
840 01
Area code(s)22860
Vehicle registrationEM
Websiteios.gr
Map of Ios

Ios, Io or Nio (Greek: Ίος, Greek pronunciation: [ˈi.os]; Ancient Greek: Ἴος [í.os]; locally Nios, Νιός) is a Greek island in the Cyclades group in the Aegean Sea. Ios is a hilly island with cliffs down to the sea on most sides. It is situated halfway between Naxos and Santorini. It is about 18 kilometres (11 miles) long and 10 kilometres (6 miles) wide, with an area of 109.024 square kilometres (42.094 sq mi).[5] Population was 2,299 in 2021 (down from 3,500 in the 20th century). Ios is part of the Thira regional unit.[6]

  1. ^ Municipality of Ios, Municipal elections – October 2023, Ministry of Interior
  2. ^ "Αποτελέσματα Απογραφής Πληθυσμού - Κατοικιών 2021, Μόνιμος Πληθυσμός κατά οικισμό" [Results of the 2021 Population - Housing Census, Permanent population by settlement] (in Greek). Hellenic Statistical Authority. 29 March 2024.
  3. ^ "Dictionary of Greek and Roman Geography (1854), IOS".
  4. ^ "Stephanus-Ethnica".
  5. ^ "Population & housing census 2001 (incl. area and average elevation)" (PDF) (in Greek). National Statistical Service of Greece. Archived from the original (PDF) on 2015-09-21.
  6. ^ "ΦΕΚ A 87/2010, Kallikratis reform law text" (in Greek). Government Gazette.