![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/7/72/Pearl_Street_Mall.jpg/640px-Pearl_Street_Mall.jpg&w=640&q=50)
Boulder, Colorado
City in Colorado, United States / From Wikipedia, the free encyclopedia
Boulder is a home rule city in and the county seat of Boulder County, Colorado, United States.[1] With a population of 108,250 at the 2020 census, it is the most-populous city in the county and the 12th-most populous city in Colorado.[6] Boulder is the principal city of the Boulder metropolitan statistical area, which had 330,758 residents in 2020, and is part of the Front Range Urban Corridor.
Boulder, Colorado | |
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![]() Pearl Street Mall in downtown Boulder | |
![]() Location of Boulder in Boulder County, Colorado | |
Coordinates: 40°00′54″N 105°16′14″W[2] | |
Country | United States |
State | Colorado |
County | Boulder[1] |
Settled | 1858 as Boulder City, N.T. |
Incorporated | November 4, 1871[3] |
Government | |
• Type | Home rule municipality[1] |
• Mayor | Aaron Brockett (D)[4] |
• Mayor Pro Tem | Nicole Speer[5] |
Area | |
• Total | 27.366 sq mi (70.877 km2) |
• Land | 26.328 sq mi (68.188 km2) |
• Water | 1.038 sq mi (2.689 km2) |
Elevation | 5,318 ft (1,621 m) |
Population | |
• Total | 108,250 |
• Rank | 12th in Colorado 289th in United States |
• Density | 4,112/sq mi (1,588/km2) |
• Metro | 330,758 (155th) |
• CSA | 3,623,560 (17th) |
• Front Range | 5,055,344 |
Demonym | Boulderite |
Time zone | UTC–07:00 (MST) |
• Summer (DST) | UTC–06:00 (MDT) |
ZIP Codes[7] | 80301-80310, 80314, 80321-80323, 80328, 80329 |
Area codes | 303 and 720 |
FIPS code | 08-07850 |
GNIS feature ID | 178680[2] |
Website | bouldercolorado |
Boulder is located at the base of the foothills of the Rocky Mountains, at an elevation of 5,430 feet (1,655 m) above sea level.[8][9] The city is 25 miles (40 km) northwest of the Colorado state capital of Denver. Boulder is a college town, hosting the University of Colorado Boulder, the flagship and largest campus of the University of Colorado system as well as numerous research institutes.