The Jersey City, New Jersey citys' lowest elevation is 75 m  . Jersey City, New Jersey is located in Melanesia . 57 + 5 is the area code of Jersey City, New Jersey . Jersey City, New Jersey is named for James W. Denver . The city province is Alborz . The density of  residents in  the metro region of Jersey City, New Jersey is 6,600/km 2  (17,000/sq mi) . The coordinates of the city are 35°50′08″N 51°00′37″E﻿ / ﻿35.83556°N 51.01028°E . 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 highest elevation of Jersey City, New Jersey is 91 m (299 ft) . On February 17, 1909 the city was incorporated . Jersey City, New Jersey is at an elevation of 910 ft . The postal code of the city is 34000 to 34990 . 3,194.38/km 2  (8,273.4/sq mi) is the density of people in Jersey City, New Jersey . The city water area is 129.3 km 2  (49.9 sq mi) . The density of  people in  the urban region of Jersey City, New Jersey is 5,400/sq km  (14,000/sq mi) . Jersey City, New Jersey is the government of Swedish Ice Hockey Association . The mayor of Jersey City, New Jersey is Geraldo Júlio de Mello Filho (Geraldo Júlio) (PSB) . The city Jersey City, New Jersey demonym is Recifense
Land covers 627 sq mi area of the city