The demonym of the city Boulder, Colorado is Barranquillero/a . The area of the metro region is 474.649 sq mi (1,229.34 km2) . Boulder, Colorado is the government of U.S. National Park Service . Boulder, Colorado is located in Czech Republic . The postal code of the city is 16000 . The city land area is 8.921 sq mi (23.106 km 2 ) . The province of the city Boulder, Colorado is Algiers Province . The water area of the city is 1.63 sq mi (4.23 km 2 ) 1.1% . The highest elevation of Boulder, Colorado is 14,110 ft (4,300 m) . The density of  inhabitents in  the urban region of Boulder, Colorado is 4,800/km 2  (12,000/sq mi) . 216  (Asian side) is the area code of Boulder, Colorado . 0°57′50″N 74°47′47″W﻿ / ﻿10.96389°N 74.79639°W are the coordinates of the city. . The lowest elevation of Boulder, Colorado is 378 m  . 3,200/km 2  (8,200/sq mi) is the density of residents in Boulder, Colorado . Boulder, Colorado has Population: 971,592 (2016) population . The city was incorporated in 1799 (Guyandotte) . Tang Liangzhi is the mayor of Boulder, Colorado . The density of  residents in  the metro region of Boulder, Colorado is 210.9/km 2  (546.2/sq mi) . Boulder, Colorado is at an elevation of 277 m . The area of the urban region is 227.70 km 2  (87.92 sq mi)
The city Boulder, Colorado is located in Algiers Province province