The urban region is 2,122 sq mi (5,496 sq km ) in area .  The city area code is +57 2 . 3,423/km 2  (8,870/sq mi) is the density of people in  the urban region of Dongguan . The city water area is 3.73 sq mi (9.67 km 2 ) . The province of the city Dongguan is East Java . The highest elevation of Dongguan is 5,364 m (17,598 ft) . The mayor of Dongguan is Faud al Muhammed Sisi . The lowest elevation of Dongguan is 3 ft . Dongguan is at an elevation of 0.9 m . The city has the postal code 1100 . On 1 October 1984 the city was incorporated . Dongguan is named for Henry E. Huntington . The density of  residents in Dongguan is 5,200/km 2  (13,000/sq mi) . The land area of the city is 48.42 sq mi (125.41 km 2 ) . The density of  people in  the metro region of Dongguan is 210.9/km 2  (546.2/sq mi) . 34°41′24″N 135°11′44″E﻿ / ﻿34.69000°N 135.19556°E are the coordinates of the city. . The population of Dongguan is January 1, 1894 . The city Dongguan demonym is cuzqueno/a . Dongguan is the government of Swedish Ice Hockey Association . The metro region has 4,167,961 population
The urban region of Dongguan is 5496 sq km )