2,900/km 2  (7,400/sq mi) is the density of residents in Douala . The highest elevation of Douala is 14,110 ft (4,300 m) . 10°38′N 71°38′W﻿ / ﻿10.633°N 71.633°W are the coordinates of the city. . Douala is located in Angkor, Siem Reap, Cambodia . The city Douala province is Alberta . The city Douala demonym is Marabin, Maracaibero(a), Maracucho(a) . 720/km 2  (1,900/sq mi) is the density of people in  the metro region of Douala . The area of the urban region is Area : 598.75 km2 (231.18 sq mi) .  The city area code is 775 . The postal code of the city is 080020 . Douala is named for Confluence of Grand River and Gunnison River . The lowest elevation of Douala is 7 ft . On 1842 the city was incorporated . Douala is at an elevation of 5 m . The mayor of Douala is Solomon Mguni . Douala is the government of Ministry of Culture . Area: 2,805 km2 (1,083 sq mi) is the area of the metro region of Douala . The water area of the city is 0.68 sq mi (1.77 km 2 )
865 m  is the lowest point in Douala