720/km 2  (1,900/sq mi) is the density of people in  the metro region of Boulder, Colorado . Boulder, Colorado is located in Georgia . The coordinates of the city are 25°25′S 49°15′W﻿ / ﻿25.417°S 49.250°W . 464.71/km 2  (1,203.6/sq mi) is the density of inhabitents in  the urban region of Boulder, Colorado . The Boulder, Colorado city highest elevation is 14,110 ft (4,300 m) . The area of the urban region is 1,770 sq mi (4,600 km 2 ) . The city land area is 314.95 sq mi (815.72 km 2 ) . The city was incorporated in July 22, 1882 . The metro region is 2,493.86 km 2  (962.88 sq mi) in area . The lowest elevation of Boulder, Colorado is 75 m  . January 1, 1894 is the population of Boulder, Colorado . The city has the postal code 207, 208, 220 - 224, 226 - 228, 231 - 239, 241 - 244, 247 - 249, 251 - 253 . Boulder, Colorado is the government of National Park Service . 57 + 5 is the area code of Boulder, Colorado . The city water area is 4.08 sq mi (10.57 km 2 ) . Boulder, Colorado is at an elevation of 1870 ft . The demonym of the city Boulder, Colorado is Caleño . The density of  inhabitents in Boulder, Colorado is 480.827/km 2  (1,245.34/sq mi)
There is more water covered area than land area in Boulder, Colorado