How many people live in Montrose County, CO?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 44,800 people living in Montrose County, CO. That makes Montrose County the 17th-most populous county in Colorado. It is home to 0.75% of people living in the state.
44.8K
population of Montrose County, CO (2024)
0.75%
County share of the Colorado population (2024)
About 44,800 people lived in Montrose County, CO in 2024.
Population estimates, 2000–2024
What are Montrose County, CO’s age demographics?
About 12,100 Montrose County, CO residents are aged 65 and older in 2024. That represents 26.9% of its population. For comparison, the age group represents 16.5% of Colorado’s population and 18% in the US overall.
Another 8,800 Montrose County residents, or 19.5% 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 Montrose County, CO's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Montrose County, CO’s racial and ethnic demographics?
Non-Hispanic white residents make up 74.2% of the Montrose County population, higher than the national share of 57.5%. Montrose County also has a larger share of people identifying as Hispanic (22.1%) than the US overall (20%).
In contrast, Montrose County’s non-Hispanic Black or African American population accounts for 0.58%, below the 12.6% nationwide, and the non-Hispanic Asian population makes up 0.74% of the county, compared with 6.5% 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.
Montrose County, CO has a higher share of a non-Hispanic white population than Colorado as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Montrose County, CO is Montrose with about 21,600 residents in 2024.
Cities and towns in Montrose County, CO ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Montrose | 21,646 |
| 2. | Olathe | 1,970 |
| 3. | Nucla | 590 |
| 4. | Naturita | 481 |
| 5. | Balance of Montrose County | 20,119 |
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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.
