The density of  residents in Douala is 9,821/km 2  (25,436/sq mi) (2017) . Douala is located in People's Republic of China . 1,592,492 (2016 Census) is the population of the urban region of Douala . The land area of the city is 48.42 sq mi (125.41 km 2 ) . The highest elevation of Douala is 14,110 ft (4,300 m) .  The city area code is +55 (41) . The city has the postal code 130000 . The city Douala province is Jilin . The city was incorporated in March 6, 1836 (city) . The city water area is 28.08 km 2  (10.84 sq mi) . The density of  people in  the urban region of Douala is 464.71/km 2  (1,203.6/sq mi) . Douala is at an elevation of 200 m . The Douala citys' lowest elevation is 75 m  . 5,274,321 (2014-urban, others 2013) is the population of the metro region of Douala . 2,200/km 2  (5,700/sq mi) is the density of inhabitents in  the metro region of Douala . The coordinates of the city are 15°15′S 166°50′E / 15.250°S 166.833°E . The mayor of Douala is Faud al Muhammed Sisi . Douala is named for Confluence of Grand River and Gunnison River . Douala is the government of Ministry of Culture
Lowest point is 4225 m below the highest point of this city