Thomas Aujero Small is the mayor of Boulder, Colorado . The density of  inhabitents in  the urban region of Boulder, Colorado is 4,800/km 2  (12,000/sq mi) . The city was incorporated in 1900 . The urban region has 2,947,722 population . The lowest elevation of Boulder, Colorado is 1,750 m . The water area of the city is 41.21 sq mi (106.73 km 2 ) .  The city area code is +82-53 . The postal code of the city is 1100 . 2,813/km 2  (7,290/sq mi) is the density of inhabitents in  the metro region of Boulder, Colorado . The density of  people in Boulder, Colorado is 15,000/km 2  (40,000/sq mi) . This city is named after Calgary, Mull . Boulder, Colorado is at an elevation of 488 m . The city land area is 840 km 2  (325 sq mi) . The city Boulder, Colorado province is Lusaka Province . The demonym of the city Boulder, Colorado is Brasiliense . The population of the metro region is 3,442,361 . Boulder, Colorado is located in Zambia
993 sq mi area of the city Boulder, Colorado is land