How many people live in ?

Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 729,000 people living in Denver County, CO. That makes Denver County the second-most populous county in Colorado. It is home to 12.1% of people living in the state.

729K

population of Denver County, CO (2024)

12.1%

County share of the Colorado population (2024)

About 729,000 people lived in Denver County, CO in 2024.

Population estimates, 2000–2024

What are Denver County, CO’s age demographics?

About 93,900 Denver County, CO residents are aged 65 and older in 2024. That represents 12.9% of its population. For comparison, the age group represents 16.5% of Colorado’s population and 18% in the US overall.
Another 128,500 Denver County, CO residents, or 17.6% of the population, were children under 18. For comparison, the age group represents 20.5% of Colorado’s population and 21.6% in the US overall.

A higher share of Denver County, CO's population is aged 25–44 than the US as a whole.

Population estimates by age group, (2024)

What are Denver County, CO’s racial and ethnic demographics?

Hispanic residents make up 28.3% of the Denver County, CO population, higher than the national share of 20%. Denver County also has a larger share of people identifying as non-Hispanic two or more races (2.8%) than the US overall (2.5%).
In contrast, Denver County’s non-Hispanic Black or African American population accounts for 9.2%, below the 12.6% nationwide, and the non-Hispanic white population makes up 54.6% of the county, compared with 57.5% nationally.
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.

Denver County, CO has a higher share of a Hispanic population than Colorado as a whole.

Population estimates by race and ethnicity, (2024)

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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.