São Jorge is an island in the central group of the Azores archipelago and part of the autonomous region of Portugal. Separated from its nearest neighbours by the 15-kilometre (9.3 mi) Pico-São Jorge Channel, the central group is often referred colloquially as part of the Triângulo ("Triangle") group or just "The Triangle". São Jorge is a relatively long thin island with tall cliffs, whose 8,381 inhabitants are concentrated on various geological debris fields (fajãs) along the north and south coasts; from east to west, the island is 53 kilometres (33 mi) long and, north to south, 8 kilometres (5.0 mi) wide: its area is 237.59 square kilometres (91.73 mi2).