The density of  residents in Douala is 9,821/km 2  (25,436/sq mi) (2017) . The lowest elevation of Douala is 75 m  . Douala is named for Confluence of Grand River and Gunnison River . Douala is at an elevation of 700 ft . The postal code of the city is 130000 . The Douala city highest elevation is 14,110 ft (4,300 m) . The city Douala province is Jilin . The water area of the city is 28.08 km 2  (10.84 sq mi) . Douala is located in People's Republic of China . 2,200/km 2  (5,700/sq mi) is the density of inhabitents in  the metro region of Douala . Faud al Muhammed Sisi is the mayor of Douala . The land area of the city is 48.42 sq mi (125.41 km 2 ) . 5,274,321 (2014-urban, others 2013) is the population of the metro region of Douala . 15°15′S 166°50′E / 15.250°S 166.833°E are the coordinates of the city. . Douala is the government of Ministry of Culture . The density of  people in  the urban region of Douala is 464.71/km 2  (1,203.6/sq mi) . The city was incorporated in March 6, 1836 (city) .  The city area code is +55 (41) . The population of the urban region is 1,592,492 (2016 Census)
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