Boulder County Map
The County of Boulder is located in the State of Colorado. Find directions to Boulder County, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. According to the 2020 US Census the Boulder County population is estimated at 327,171 people. The Boulder County time zone is Mountain Daylight Time which is 7 hours behind Coordinated Universal Time (UTC).
Nearby counties include Broomfield County, Gilpin County, Grand County, Jefferson County, Larimer County, Weld County.
Top cities include Boulder, Longmont, Lafayette, Louisville, Superior