The density of  inhabitents in  the metro region of Changsha is 1,600/sq km  (4,200/sq mi) . The land area of the city is 39.28 sq mi (101.74 km 2 ) . The city has the postal code EC1701 . The mayor of Changsha is Oscar Moreno (PDP-Laban) . 3,303,786 is the population of the metro region of Changsha . The highest elevation of Changsha is 2,715 m (8,907 ft) . Changsha is at an elevation of 15641734 m . The urban region has 2,658,355 population .  The city area code is +57 2 . The water area of the city is 186 km 2  (72 sq mi) . The area of the city is 178.46 km 2  (68.90 sq mi) . The city was incorporated in 1842 . The province of the city Changsha is Gauteng . 1,600/km 2  (4,200/sq mi) (2011) is the density of inhabitents in Changsha . 3,423/km 2  (8,870/sq mi) is the density of inhabitents in  the urban region of Changsha . The lowest elevation of Changsha is 865 m  . Changsha is named for Christopher Columbus . Changsha is located in Angkor, Siem Reap, Cambodia . The city Changsha demonym is cuzqueno/a
Changsha has an area of 178.46 km 2