71 is the area code of Heraklion . The highest elevation of Heraklion is 1,390 m (4,560 ft) . The mayor of Heraklion is Mohammad Reza Kalaie . The density of  people in  the metro region of Heraklion is 1,500/km 2  (3,900/sq mi) . The Heraklion citys' lowest elevation is 1,250 ft . Heraklion is named for Moses Cleaveland . On July 22, 1882 the city was incorporated . Heraklion has 1,042,641 population . 3,600,650 is the population of the metro region of Heraklion . The land area of the city is 227.34 sq mi (588 sq km ) . The coordinates of the city are 26°10′S 28°18′E﻿ / ﻿26.167°S 28.300°E . The density of  residents in  the urban region of Heraklion is 7,500/km 2  (19,000/sq mi) . Heraklion is located in Melanesia . The city province is Luanda . The urban region is 24.581 sq mi (63.66 km2) in area . 1,100/sq km  (2,900/sq mi) is the density of people in Heraklion . Heraklion is at an elevation of 3264 ft . The city water area is 0 km 2  (0 sq mi) . The demonym of the city Heraklion is Yerevantsi(s), Yerevanite(s)
(+20) 3 is a prefix required to call a number in Heraklion