The mayor of Dongguan is Tri Rismaharini . On 1900 the city was incorporated . The lowest elevation of Dongguan is 5,740 ft  . The density of  inhabitents in  the metro region of Dongguan is 4,484/km 2  (11,610/sq mi) . The city land area is 8.13 sq mi (21.06 km 2 ) . (+90) 224 is the area code of Dongguan . Dongguan is named for Joe Juneau . Dongguan is the government of Ministry of Culture . The city water area is 4.46 sq km  (1.72 sq mi) . 4,800/km 2  (12,000/sq mi) is the density of people in  the urban region of Dongguan . The Dongguan city highest elevation is 425 m (1,394 ft) . The province of the city Dongguan is Gauteng . 6,310,000 (2017) is the population of the metro region of Dongguan . Dongguan is at an elevation of 19 m . The density of  people in Dongguan is 0.032/sq km  (0.083/sq mi) . The city is 19.4 sq mi (50.2 sq km) in area . Dongguan is located in England . The urban region has 16,349,831 (2nd) population . The city has the postal code 8320000
The city is at a height of 19 m