How many people live in the Boulder, CO area?
Updated Mar. 4, 2026Refreshed annually
In 2024 there were 330,300 people in the Boulder, CO area. That makes the Boulder, CO metropolitan statistical area the 162nd-most populous metro area in the US. It is home to 0.1% of the nation's population.
330K
population of Boulder, CO area (2024)
0.1%
Boulder, CO area share of US population (2024)
Between 2010 and 2024, the population of the Boulder, CO area increased from 295,100 to 330,300—an 11.9% increase. During that same period, the US population grew 9.9%.
About 330,300 people lived in the Boulder, CO area in 2024.
Population estimates of the Boulder, CO Metro Area, 2010–2024
What are the age demographics of the Boulder, CO area?
About 17.5% of the Boulder, CO area's population in 2024 was aged 65 years or older, lower than the 18% share in the nation overall. Children (under 18) account for 16.6% of the Boulder, CO area population, below the 21.6% population share of children nationwide.
A lower share of the Boulder, CO area population is 65 and older than the US overall.
Population share by age group in Boulder, CO Metro Area and the US overall (2024)
What is the racial and ethnic makeup of the Boulder, CO area?
Non-Hispanic white residents make up 75.4% of the Boulder, CO area population, higher than the national share of 57.5%.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
A higher share of the Boulder, CO area population is non-Hispanic white than the US overall.
Population share by race and ethnicity in Boulder, CO Metro Area and the US overall (2024)
Keep exploring
Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
