Boulder is the home rule city that is the seat of Boulder County, Colorado, United States. 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. 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.
AdCompare Prices & Save Money With Tripadvisor (The World's Largest Travel Site). Tripadvisor Checks Up To 200 Sites To Help You Find The Lowest Prices.
Hotel Deals · Highest Rated · Military Discounts · Luxury Collection
AdIf It's Worth Doing, We've Got It. Find the Best Tours and Activities for Your Trip. Spend Your Trip Making Memories, Not Missing Out While You're Waiting in Line.
3 million trusted reviews · Top-rated things to do · Easy online booking · Expert guides
Save
Share
More