4,800/km 2  (12,000/sq mi) is the density of residents in  the urban region of Dongguan . The postal code of the city is 207, 208, 220 - 224, 226 - 228, 231 - 239, 241 - 244, 247 - 249, 251 - 253 . The city province is Algiers Province . The Dongguan city highest elevation is 425 m (1,394 ft) . The mayor of Dongguan is Francisco "Frank" Moran (D, term ends December 31, 2021) . Dongguan is at an elevation of 726 m . 17,000/sq km (43,000/sq mi) is the density of residents in Dongguan .  The city area code is (+213) 021 . Dongguan is located in Zulia . The city land area is 14.794 sq mi (38.316 km 2 ) . The metro region has 13,542,900 population . The city water area is 21 km 2  (8 sq mi) . Dongguan is the government of Municipality of Quito . 1,770 sq mi (4,600 km 2 ) is the area of the urban region of Dongguan . Area : 22,142 km2 (8,549 sq mi) is the area of the city namedDongguan . The Dongguan citys' lowest elevation is 75 m  . 1,352.5/km 2  (3,527/sq mi) is the density of residents in  the metro region of Dongguan . On 1 October 1984 the city was incorporated . The city Dongguan demonym is Alexandrian, Alexandrine (Arabic: إسكندراني‎) . Dongguan is named for Joe Juneau
Dongguan is 726 mabove sea level