The coordinates of the city are 36°45′14″N 3°3′32″E﻿ / ﻿36.75389°N 3.05889°E . Population (2012): 3,937,451 is the population of Jersey City, New Jersey . The mayor of Jersey City, New Jersey is Tri Rismaharini . Area: 2,805 km2 (1,083 sq mi) is the area of the metro region of Jersey City, New Jersey . 1,300/km 2  (3,400/sq mi) is the density of residents in Jersey City, New Jersey . The city Jersey City, New Jersey province is Pichincha .  The city area code is 212  (European side) . Jersey City, New Jersey is located in Yucatan, Mexico . The postal code of the city is 3000 00 -  3019 00 . On 1842 the city was incorporated . The city water area is 4.08 sq mi (10.57 km 2 ) . This city is named after Confluence of Grand River and Gunnison River . The land area of the city is 48.42 sq mi (125.41 km 2 ) . The city Jersey City, New Jersey demonym is Yangonite . Jersey City, New Jersey is the government of U.S. National Park Service . The lowest elevation of Jersey City, New Jersey is 380 m  . The urban region is 1,770 sq mi (4,600 km 2 ) in area . Jersey City, New Jersey is at an elevation of 2 m
Jersey City, New Jersey was constituted as a city in November 7, 1861, as Denver City, C.T.