Changsha is located in Angkor, Siem Reap, Cambodia . Oscar Moreno (PDP-Laban) is the mayor of Changsha . The postal code of the city is EC1701 . The area of the city is 178.46 km 2  (68.90 sq mi) . 3,423/km 2  (8,870/sq mi) is the density of inhabitents in  the urban region of Changsha . Changsha is named for Christopher Columbus . 1,600/km 2  (4,200/sq mi) (2011) is the density of inhabitents in Changsha . The city water area is 186 km 2  (72 sq mi) . The province of the city Changsha is Gauteng . 1,600/sq km  (4,200/sq mi) is the density of inhabitents in  the metro region of Changsha . The city land area is 39.28 sq mi (101.74 km 2 ) . The city was incorporated in 1842 . Changsha is at an elevation of 51305690 ft . The city Changsha demonym is cuzqueno/a .  The city area code is +57 2 . 3,303,786 is the population of the metro region of Changsha . The Changsha citys' lowest elevation is 865 m  . The urban region has 2,658,355 population . The highest elevation of Changsha is 2,715 m (8,907 ft)
Zhang Guoqing govern the city Changsha