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About Boulder

Boulder is a home rule city and the county seat of Boulder County, Colorado, United States. It is the largest city in Boulder County, with a population of 108,250 at the 2020 United States census, making it the 12th-most populous city in Colorado. Boulder is the principal city of the Boulder, CO Metropolitan Statistical Area and part of the Front Range Urban Corridor.

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Important airports for Boulder

Frequently asked questions

Want to know about travelling to Boulder, CO, USA? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport?, What is the quickest option?, How much do tickets usually cost? and many more.

There are 129+ hotels available in Boulder. Prices start at $61 USD per night.

More information

It is currently 6:48 PM in Boulder. Boulder uses Mountain Standard Time and also supports Mountain Daylight Time.