Where is Boulder, Colorado, USA?

Written and Fact-checked by | Updated On: April 28, 2026 | 14:51 ET

Where is Boulder Located? - Boulder is a city located in the Boulder County seat County of Colorado, United States. Boulder lies between 41.5623 Degrees North latitudes and 72.6506 Degrees West longitudes.

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Boulder Map, Colorado, USA

Where is Boulder?: The Google Map showing the location of Boulder in the U.S. state of Colorado.

Where is Boulder Located?

Boulder is a city located in the Boulder County seat County of Colorado, United States. Boulder lies between 41.5623 Degrees North latitudes and 72.6506 Degrees West longitudes. According to 2020 U.S.census, the population of Boulder city is 108250 people and the city has a total area of 26.29 sq mi. The city has numerous parks and recreational facilities.

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Boulder, Colorado Quick Facts

FactDetails
CityBoulder
CountyBoulder County
StateColorado
State CapitalDenver
CountryUnited States
US RegionWest
Latitude40.0150°N
Longitude105.2705°W
Elevation5,430 ft (1,655 m)
Land Area26.31 sq mi
Water Area0.18 sq mi
Total Area26.49 sq mi
Population (Census 2020)108,250
Population DensityApproximately 4,115 per sq mi
ZIP Codes80301-80310
Area Code303, 720
Time Zone StandardMountain Standard Time (MST, UTC-7)
Time Zone DaylightMountain Daylight Time (MDT, UTC-6)
CurrencyUnited States Dollar (USD)
FIPS Code08-07850
Congressional DistrictColorado's 2nd Congressional District

Nearby Cities and Towns to Boulder, Colorado

  • Louisville, Colorado - 8 mi Southeast
  • Lafayette, Colorado - 10 mi East
  • Superior, Colorado - 9 mi Southeast
  • Longmont, Colorado - 16 mi Northeast
  • Broomfield, Colorado - 16 mi Southeast
  • Erie, Colorado - 18 mi East
  • Golden, Colorado - 23 mi South
  • Westminster, Colorado - 20 mi Southeast
  • Denver, Colorado - 29 mi Southeast
  • Loveland, Colorado - 38 mi North

Boulder, Colorado Climate and Weather Overview

MonthAvg High (°F)Avg Low (°F)Avg Precipitation (in)
January47220.6
April63362.1
July88591.9
October68401.2
Annual673920.7
Climate AttributeDetails
Climate ClassificationCold Semi-Arid (Köppen BSk)
Annual PrecipitationApproximately 20.7 inches
Annual Sunshine DaysAbout 245 days
Severe Weather RiskModerate - Snowstorms, hail, thunderstorms and occasional wildfires nearby
Annual SnowfallApproximately 89 inches

Driving Distances from Boulder, Colorado

CityStateDistance (mi)Approx. Drive Time
LouisvilleColorado815 min
SuperiorColorado915 min
LafayetteColorado1018 min
LongmontColorado1625 min
BroomfieldColorado1625 min
ErieColorado1830 min
WestminsterColorado2030 min
GoldenColorado2335 min
DenverColorado2940 min
LovelandColorado3850 min

Transportation and Connectivity in Boulder, Colorado

TransportationDetails
Nearest AirportRocky Mountain Metropolitan Airport
IATA CodeBJC
Nearest International AirportDenver International Airport
Major HighwaysU.S. Route 36, Colorado State Highway 119, Colorado State Highway 7, Colorado State Highway 93
Rail ServiceNo passenger rail service; Amtrak service available in nearby Denver
Local TransitRegional Transportation District (RTD)
  • U.S. Route 36 is the primary highway connecting Boulder with Denver and the surrounding Front Range communities.
  • Colorado Highways 119, 7 and 93 provide access to mountain communities, Longmont, Golden and Rocky Mountain destinations.
  • Denver International Airport, approximately 45 miles southeast, offers extensive domestic and international air service.
  • RTD buses, including the Flatiron Flyer, provide frequent regional transit between Boulder, Denver, Boulder County communities and nearby employment centers.

Key Landmarks and Places to Visit in Boulder, Colorado

LandmarkType
University of Colorado BoulderUniversity Campus
Chautauqua ParkHistoric Park
FlatironsRock Formation
Pearl Street MallPedestrian Shopping District
Boulder Creek PathMulti-Use Trail
National Center for Atmospheric Research (NCAR)Research Facility
Eldorado Canyon State ParkState Park
Boulder ReservoirRecreation Area
Fiske PlanetariumPlanetarium
Boulder Museum of Contemporary ArtArt Museum

Colleges and Universities in Boulder, Colorado

InstitutionTypeLevelNotable For
University of Colorado BoulderPublicResearch UniversityEngineering, aerospace, business, environmental science and law
Naropa UniversityPrivateUniversityLiberal arts, psychology and contemplative education
Front Range Community College - Boulder County CampusPublicCommunity CollegeCareer training and university transfer programs
Colorado School of MinesPublicResearch UniversityEngineering, geology and applied sciences
Regis University - BoulderPrivateUniversityProfessional and graduate education
Metropolitan State University of DenverPublicUniversityBusiness, aviation and public affairs

Waterbodies in Boulder, Colorado

Boulder Creek, Boulder Reservoir, Wonderland Lake, Coot Lake, South Boulder Creek, Barker Reservoir, Gross Reservoir, Fourmile Creek, Left Hand Creek, Baseline Reservoir.

Golf Courses in Boulder, Colorado

Flatirons Golf Course, Boulder Country Club, Lake Valley Golf Club, Coal Creek Golf Course, Indian Peaks Golf Course, Haystack Mountain Golf Course, Twin Peaks Golf Course, Ute Creek Golf Course.

Boulder, Colorado - Key Historical Facts

  • Boulder was founded in 1858 during the Colorado Gold Rush and quickly developed as a mining supply center along the Front Range.
  • The city became home to the University of Colorado in 1876, helping establish Boulder as a leading center for higher education and research.
  • Throughout the twentieth century, Boulder attracted scientific institutions, including the National Center for Atmospheric Research and several federal laboratories.
  • The city has long emphasized environmental conservation, preserving thousands of acres of open space and maintaining extensive hiking and cycling trails.
  • Boulder's economy evolved from mining and agriculture into one driven by education, technology, aerospace, outdoor recreation and entrepreneurship.
  • Today, Boulder is internationally recognized for its innovation, outdoor lifestyle, research institutions, vibrant downtown and access to the Rocky Mountains.

References

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