The Hoboken, New Jersey citys' lowest elevation is 3 ft . The density of  people in  the urban region of Hoboken, New Jersey is 4,800/km 2  (12,000/sq mi) . Hoboken, New Jersey is at an elevation of 910 ft . The Hoboken, New Jersey city highest elevation is 5,364 m (17,598 ft) . Hoboken, New Jersey is the government of U.S. National Park Service . +226 is the area code of Hoboken, New Jersey . 1,600/km 2  (4,200/sq mi) is the density of people in  the metro region of Hoboken, New Jersey . 2,300/km 2  (5,900/sq mi) is the density of inhabitents in Hoboken, New Jersey . The area of the metro region is Area: 5,609.9 km2 (2,166.0 sq mi) . The city has the postal code 16000 . The coordinates of the city are 39°08′N 117°11′E﻿ / ﻿39.133°N 117.183°E . The demonym of the city Hoboken, New Jersey is Capetonian . The land area of the city is 194.74 sq mi (504.38 km 2 ) . The area of the city is Area: 219.3 km2 (84.7 sq mi) . The mayor of Hoboken, New Jersey is Alejandro Char  ,  (Radical Change) . The urban region has Population (2006) : 3,550,000 population . The city was incorporated in November 7, 1861, as Denver City, C.T. . This city is named after Confluence of Grand River and Gunnison River
The metro region is more than 1305 sq mi)