Jersey City, New Jersey is located in Melanesia . Geraldo Júlio de Mello Filho (Geraldo Júlio) (PSB) is the mayor of Jersey City, New Jersey . The city was incorporated in February 17, 1909 . 57 + 5 is the area code of Jersey City, New Jersey . The density of  residents in Jersey City, New Jersey is 3,194.38/km 2  (8,273.4/sq mi) . Jersey City, New Jersey is at an elevation of 910 ft . The density of  residents in  the metro region of Jersey City, New Jersey is 6,600/km 2  (17,000/sq mi) . 5,400/sq km  (14,000/sq mi) is the density of inhabitents in  the urban region of Jersey City, New Jersey . 35°50′08″N 51°00′37″E﻿ / ﻿35.83556°N 51.01028°E are the coordinates of the city. . The area of the city is 2,121 km 2  (819 sq mi) . The city land area is 138.75 sq mi (359.36 km 2 ) . The city has the postal code 34000 to 34990 . Jersey City, New Jersey is the government of Swedish Ice Hockey Association . The Jersey City, New Jersey city highest elevation is 91 m (299 ft) . The Jersey City, New Jersey citys' lowest elevation is 246 ft . Jersey City, New Jersey is named for James W. Denver . The water area of the city is 129.3 km 2  (49.9 sq mi) . The city Jersey City, New Jersey province is Alborz . The city Jersey City, New Jersey demonym is Recifense
Geraldo Júlio de Mello Filho (Geraldo Júlio) (PSB) is an important local leader of the city Jersey City, New Jersey