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