Federico Gutiérrez, 2016-2019 is the mayor of Hanoi . The density of  people in  the urban region of Hanoi is 4,800/km 2  (12,000/sq mi) . The city water area is 41.21 sq mi (106.73 km 2 ) . Population: 3,743,854 (6th) (2012) is the population of the metro region of Hanoi . The urban region has 3,039,444 population . 1,275/km 2  (3,300/sq mi) is the density of inhabitents in  the metro region of Hanoi . The postal code of the city is 207, 208, 220 - 224, 226 - 228, 231 - 239, 241 - 244, 247 - 249, 251 - 253 . Hanoi is located in Kano State . 41°18′N 69°16′E﻿ / ﻿41.300°N 69.267° are the coordinates of the city. . The density of  people in Hanoi is 2,500/km 2  (6,400/sq mi) . The city province is Davao del Sur  (geographically only) . The city is Area : 499 km2 (193 sq mi) in area . Hanoi is at an elevation of 3 ft . Hanoi is the government of U.S. National Park Service . The highest elevation of Hanoi is 2,715 m (8,907 ft) . The land area of the city is 316.42 km 2  (122.17 sq mi) . This city is named after Calgary, Mull . +966-12 is the area code of Hanoi
Hanoi is below the equator