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Cities and Towns in the United States > State Colorado > Boulder County
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Boulder County, located in the state of Colorado, is renowned for its stunning natural beauty and outdoor recreation opportunities. Home to the iconic Flatirons rock formations, it offers numerous hiking, rock climbing, and mountain biking trails. The county encompasses a portion of the Rocky Mountains, providing access to ski resorts during the winter season. Additionally, visitors can explore the charming town of Boulder, known for its vibrant arts scene, craft breweries, and the University of Colorado campus. Each year, the county hosts events such as the Bolder Boulder 10K race and the Colorado Shakespeare Festival. With its diverse cultural amenities and picturesque landscapes, Boulder County is a popular destination for both tourists and outdoor enthusiasts alike.

Get the contact information for all cities and towns in this county. Find general information, official websites, email, phone numbers, addresses, and much more.

Boulder County administration contact details

Boulder County administration contact detailsNot available
Address2020 13th Street, Boulder, CO 80302
County seatBoulder
Phone number(303) 441-3500
Official websitewww.bouldercounty.org
County clerkHillary Hall
County permits office or building department contact detailsBuilding Safety and Inspection Services, (720) 564-2640
County commissionerElise Jones

Boulder County, CO Sheriff's Office and Jail Information

Number of prisons1
Jail namesBoulder County Jail
Sheriff office address5600 Flatiron Parkway, Boulder, CO 80301
Sheriff office phone number303-441-3600
Inmate search informationTo locate an inmate in Boulder County, visit the Sheriff's Office website and use the inmate lookup tool, or contact the Boulder County Jail directly at 303-441-3600.
Clerk of Court nameMolly Fitzpatrick
Clerk of Court address1750 33rd Street, Suite 500, Boulder, CO 80301

Boulder County (CO) Statistics

Number of cities/towns/villages1
Population108,250 people
Area28 sq mi
Density3,866 /sq mi
Altitude5,430 ft
GDP$25 billion
Median Household Income$75,000
Poverty rate22%
Unemployment rate3%
Educational Attainment (Bachelor's Degree or higher)63%
Crime rate32 per 1,000 residents

Environmental risk in Boulder County, CO

Overall riskRelatively Moderate
Expected Annual LossRelatively Moderate
Social VulnerabilityRelatively Low
Community ResilienceRelatively High
Avalanche RiskRelatively Low
Coastal Flooding RiskNot Applicable
Cold Wave RiskRelatively High
Drought RiskVery Low
Earthquake RiskRelatively Low

Data obtained from the FEMA National Risk Index.

counties surrounding Boulder

Gilpin 18.4 milesBroomfield 18.8 milesClear Creek 31.8 miles
Denver 34.3 milesJefferson 35.4 milesLarimer 40 miles

List of cities and towns in Boulder County by population size

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Birth certificate - U.S. Vital Records