On 1842 the city was incorporated . The urban region has 2,658,355 population . The density of  people in  the urban region of Changsha is 3,423/km 2  (8,870/sq mi) . The city Changsha demonym is cuzqueno/a . The population of the metro region is 3,303,786 . The density of  inhabitents in  the metro region of Changsha is 1,600/sq km  (4,200/sq mi) . The city has the postal code EC1701 . +57 2 is the area code of Changsha . Oscar Moreno (PDP-Laban) is the mayor of Changsha . Changsha is at an elevation of 51305690 ft . This city is named after Christopher Columbus . The city land area is 39.28 sq mi (101.74 km 2 ) . The city is 178.46 km 2  (68.90 sq mi) in area . The Changsha city highest elevation is 2,715 m (8,907 ft) . Changsha is located in Angkor, Siem Reap, Cambodia . The density of  inhabitents in Changsha is 1,600/km 2  (4,200/sq mi) (2011) . The province of the city Changsha is Gauteng . The water area of the city is 186 km 2  (72 sq mi) . The lowest elevation of Changsha is 2,838 ft
Changsha is 22 mabove sea level