Rafael Greca (PMN) is the mayor of Boulder, Colorado . The urban region is 1,770 sq mi (4,600 km 2 ) in area . The population of Boulder, Colorado is Population: 1,747,152 . The coordinates of the city are 6°13′51″N 75°35′26″W﻿ / ﻿6.23083°N 75.59056°W . Boulder, Colorado is located in Zulia . 1,352.5/km 2  (3,527/sq mi) is the density of people in  the metro region of Boulder, Colorado . The city land area is 840 km 2  (325 sq mi) . The city was incorporated in September 20, 1917 . The density of  inhabitents in Boulder, Colorado is 630/sq km  (1,600/sq mi) . Boulder, Colorado is named for John Hunt . The postal code of the city is 080020 . The city Boulder, Colorado demonym is Medellinense  ,  Paisa . Boulder, Colorado is the government of Ministry of Culture .  The city area code is +374 10 . The highest elevation of Boulder, Colorado is 2,715 m (8,907 ft) . The water area of the city is 4.12 sq mi (10.67 km 2 ) . Boulder, Colorado is at an elevation of 3264 ft . The metro region has 2,452,656 population . 2,305/km 2  (5,970/sq mi) is the density of people in  the urban region of Boulder, Colorado . The Boulder, Colorado citys' lowest elevation is 620 ft
Land covers 1213 km 2 area of the city