Boulder, Colorado is located in Czech Republic . The city Boulder, Colorado demonym is Barranquillero/a . On 1799 (Guyandotte) the city was incorporated . The density of  residents in  the metro region of Boulder, Colorado is 210.9/km 2  (546.2/sq mi) . Boulder, Colorado has Population: 971,592 (2016) population . Boulder, Colorado is at an elevation of 277 m . 4,800/km 2  (12,000/sq mi) is the density of residents in  the urban region of Boulder, Colorado . The mayor of Boulder, Colorado is Tang Liangzhi . The density of  people in Boulder, Colorado is 3,200/km 2  (8,200/sq mi) . The coordinates of the city are 0°57′50″N 74°47′47″W﻿ / ﻿10.96389°N 74.79639°W . The province of the city Boulder, Colorado is Algiers Province . The city land area is 8.921 sq mi (23.106 km 2 ) . The highest elevation of Boulder, Colorado is 14,110 ft (4,300 m) . The city water area is 1.63 sq mi (4.23 km 2 ) 1.1% . Boulder, Colorado is the government of U.S. National Park Service . The metro region is 474.649 sq mi (1,229.34 km2) in area . The area of the urban region is 227.70 km 2  (87.92 sq mi) .  The city area code is 216  (Asian side) . The postal code of the city is 16000 . The lowest elevation of Boulder, Colorado is 1,240 ft
There are 8200 residents per sq mi in Boulder, Colorado