Back Boulder, Colorado Afrikaans Boulder ALS بولدر (كولورادو) Arabic بولدر, كولورادو ARZ بولدر، کولورادو AZB Боўлдэр (Каларада) Byelorussian Боулдър Bulgarian Boulder (Colorado) Breton Boulder (Colorado) Catalan Боулдер (Колорадо) CE
Boulder, Colorado | |
|---|---|
 Pearl Street Mall in downtown Boulder | |
 Seal | |
 Location of Boulder in Boulder County, Colorado | |
  Boulder Location of the City of Boulder, Colorado.  Boulder Boulder (Colorado) | |
| Coordinates: 40°00′54″N 105°16′14″W / 40.0150°N 105.2705°W[3] | |
| Country | United States |
| State | Colorado |
| County | Boulder County[2] |
| Settled | 1858 as Boulder City, N.T. |
| Incorporated | November 4, 1871[4] |
| Government | |
| • Type | Home Rule City[1] |
| • Mayor | Aaron Brockett (D)[5] |
| • Mayor Pro Tem | Nicole Speer[6] |
| Area | |
| 27.366 sq mi (70.877 km2) | |
| • Land | 26.328 sq mi (68.188 km2) |
| • Water | Formatting error: invalid input when rounding sq mi (2.689 !-- Population -----------------------> km2) |
| Elevation | 5,319 ft (1,621 m) |
| Population | |
| 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 |
| GDP | |
| • Metro | $35.608 billion (2022) |
| Time zone | UTC−07:00 (MST) |
| • Summer (DST) | UTC−06:00 (MDT) |
| ZIP Codes[9] | 80301-80310, 80314, 80321-80323, 80328, 80329 |
| Area codes | 303/720/983 |
| GNIS pop ID | 178680 |
| GNIS city ID | 2409883 |
| FIPS code | 08-07850 |
| Website | [City of Boulder] |
Boulder is the Home Rule City that is the 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.[7] Boulder is the principal city of the Boulder, CO Metropolitan Statistical Area, which had 330,758 residents in 2020 and is part of the Front Range Urban Corridor.
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.[10][11] 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.
- ^ a b c "Active Colorado Municipalities". Colorado Department of Local Affairs. Retrieved January 30, 2025.
- ^ "Colorado Counties". Colorado Department of Local Affairs. Retrieved January 31, 2025.
- ^ a b "Boulder, Colorado". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved January 30, 2025.
- ^ "Colorado Municipal Incorporations". State of Colorado, Department of Personnel & Administration, Colorado State Archives. December 1, 2004. Archived from the original on September 27, 2007. Retrieved September 2, 2007.
- ^ "Shay Castle". twitter.com. Archived from the original on November 17, 2021. Retrieved November 16, 2021.
- ^ "Nicole Speer elected mayor pro tem of Boulder; new city councilmembers sworn in". Daily Camera. December 7, 2023. Archived from the original on December 28, 2023. Retrieved December 27, 2023.
- ^ a b c "Decennial Census P.L. 94-171 Redistricting Data". United States Census Bureau, United States Department of Commerce. August 12, 2021. Archived from the original on December 17, 2021. Retrieved September 7, 2021.
- ^ "Total Gross Domestic Product for Boulder, CO (MSA)". Federal Reserve Economic Data. Federal Reserve Bank of St. Louis.
- ^ "ZIP Code Lookup". United States Postal Service. Archived from the original on December 25, 2018. Retrieved October 20, 2014.
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
- ^ "Boulder Elevation". www.BoulderColoradoUSA.com. Archived from the original on August 7, 2016. Retrieved February 10, 2016.