The water area of the city is 186 km 2  (72 sq mi) . 1,600/km 2  (4,200/sq mi) (2011) is the density of inhabitents in Changsha . Changsha is located in Angkor, Siem Reap, Cambodia .  The city area code is +57 2 . The urban region has 2,658,355 population . The city Changsha demonym is cuzqueno/a . The population of the metro region is 3,303,786 . 1,600/sq km  (4,200/sq mi) is the density of inhabitents in  the metro region of Changsha . Oscar Moreno (PDP-Laban) is the mayor of Changsha . Changsha is at an elevation of 15641734 m . This city is named after Christopher Columbus . The city land area is 39.28 sq mi (101.74 km 2 ) . 178.46 km 2  (68.90 sq mi) is the area of the city namedChangsha . The highest elevation of Changsha is 2,715 m (8,907 ft) . The postal code of the city is EC1701 . On 1842 the city was incorporated . The city province is Gauteng . The Changsha citys' lowest elevation is 2,838 ft . The density of  people in  the urban region of Changsha is 3,423/km 2  (8,870/sq mi)
There are 3423 inhabitents per sq km in the urban region of Changsha