1,300/km 2  (3,400/sq mi) is the density of residents in Jersey City, New Jersey .  The city area code is 212  (European side) . The urban region is 1,770 sq mi (4,600 km 2 ) in area . The city water area is 4.08 sq mi (10.57 km 2 ) . The land area of the city is 48.42 sq mi (125.41 km 2 ) . The Jersey City, New Jersey citys' lowest elevation is 380 m  . On 1842 the city was incorporated . Area: 2,805 km2 (1,083 sq mi) is the area of the metro region of Jersey City, New Jersey . Jersey City, New Jersey is located in Yucatan, Mexico . Jersey City, New Jersey has Population (2012): 3,937,451 population . The city Jersey City, New Jersey province is Pichincha . Jersey City, New Jersey is the government of U.S. National Park Service . The mayor of Jersey City, New Jersey is Tri Rismaharini . The postal code of the city is 3000 00 -  3019 00 . Jersey City, New Jersey is at an elevation of 7 ft . The city Jersey City, New Jersey demonym is Yangonite . 36°45′14″N 3°3′32″E﻿ / ﻿36.75389°N 3.05889°E are the coordinates of the city. . This city is named after Confluence of Grand River and Gunnison River
Jersey City, New Jersey is a part of Czech Republic