The highest elevation of Douala is 14,110 ft (4,300 m) . The density of  people in  the metro region of Douala is 720/km 2  (1,900/sq mi) . Area : 598.75 km2 (231.18 sq mi) is the area of the urban region of Douala . The demonym of the city Douala is Marabin, Maracaibero(a), Maracucho(a) . The city was incorporated in 1842 . 2,900/km 2  (7,400/sq mi) is the density of residents in Douala . Douala is at an elevation of 16 ft . The Douala citys' lowest elevation is 2 m  . The coordinates of the city are 10°38′N 71°38′W﻿ / ﻿10.633°N 71.633°W .  The city area code is 775 . The city water area is 0.68 sq mi (1.77 km 2 ) . This city is named after Confluence of Grand River and Gunnison River . Solomon Mguni is the mayor of Douala . The metro region is Area: 2,805 km2 (1,083 sq mi) in area . Douala is located in Angkor, Siem Reap, Cambodia . The province of the city Douala is Alberta . The city has the postal code 080020 . Douala is the government of Ministry of Culture
Less than 391 sq mi area of the city Douala is water