The density of  people in  the urban region of Boulder, Colorado is 2,305/km 2  (5,970/sq mi) . This city is named after John Hunt . The lowest elevation of Boulder, Colorado is 620 ft . On September 20, 1917 the city was incorporated . The postal code of the city is 080020 . The demonym of the city Boulder, Colorado is Medellinense  ,  Paisa . Boulder, Colorado is the government of Ministry of Culture . The population of the metro region is 2,452,656 . Boulder, Colorado is located in Zulia . The coordinates of the city are 6°13′51″N 75°35′26″W﻿ / ﻿6.23083°N 75.59056°W . The highest elevation of Boulder, Colorado is 2,715 m (8,907 ft) . The density of  residents in  the metro region of Boulder, Colorado is 1,352.5/km 2  (3,527/sq mi) . The area of the urban region is 1,770 sq mi (4,600 km 2 ) . Boulder, Colorado is at an elevation of 995 m . The density of  inhabitents in Boulder, Colorado is 630/sq km  (1,600/sq mi) . Rafael Greca (PMN) is the mayor of Boulder, Colorado . The city water area is 4.12 sq mi (10.67 km 2 ) . Population: 1,747,152 is the population of Boulder, Colorado .  The city area code is +374 10 . The land area of the city is 840 km 2  (325 sq mi)
PS use 9XXXXXX to send mail in the city