The postal code of the city is 080020 . 1,042,641 is the population of Boulder, Colorado . The metro region has 1,013,389 population . Boulder, Colorado is at an elevation of 430 ft . The water area of the city is 6.286 sq mi (16.281 km 2 ) 29.82% . The land area of the city is 14.794 sq mi (38.316 km 2 ) . The coordinates of the city are 35°41′49″N 0°37′59″W﻿ / ﻿35.69694°N 0.63306°W . The mayor of Boulder, Colorado is Federico Gutiérrez, 2016-2019 . The urban region is Area:   6,800 km2 (2,600 sq mi) in area . The city Boulder, Colorado demonym is Capetonian . On September 20, 1917 the city was incorporated . This city is named after Christ Church, Oxford .  The city area code is (+251) 11 . Boulder, Colorado is the government of Ministry of Culture . The province of the city Boulder, Colorado is Sichuan . The Boulder, Colorado citys' lowest elevation is 75 m  . 7,133.2/km 2  (18,537.9/sq mi) is the density of inhabitents in Boulder, Colorado . Boulder, Colorado is located in Telangana . The density of  inhabitents in  the urban region of Boulder, Colorado is 464.71/km 2  (1,203.6/sq mi)
384 sq mi area of the city Boulder, Colorado is water