Source: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer. Rankings among the 50 states.
Historical data
Pick an indicator to see its long-run evolution.
Population
1870–2024U.S. Census (decennial), 1870–2020 + estimates.
Population pyramid
Colorado's civilian population by sex and five-year age group. Choose a year to see how the age structure has changed.
Tap an age group in the pyramid to see its detail.
Under 15
988,725 (16.7%)
15 to 64
3,958,343 (66.8%)
65 and older
975,901 (16.5%)
Source: U.S. Census Bureau, SC-EST2020 and SC-EST2024 age and sex estimates (civilian population, July 1).
Age, sex and longevity
The main indicators describing Colorado's age structure, sex distribution and life expectancy.
| Median age | 37.1 years | |
| Female | 49.7% | |
| Male | 50.3% | |
| Under 18 | 21.0% | |
| 65 and older | 15.5% | |
| Life expectancy | 79.0 years |
Population, households and density
How many people and households live in Colorado, how concentrated they are and how the population is changing.
| Total population | 5.88 M | 21st in the U.S. |
| Density | 22 /km² | |
| Households | 2.32 M | |
| Urban population | 86.2% | |
| Largest metro | Denver–Aurora–Lakewood (≈ 3.0 M) | |
| Growth | +0.4%/yr | 2020–2024 |
Race, ethnicity and origin
Colorado has a large and long-established Hispanic population, especially of Mexican origin, concentrated in Denver, Pueblo and the San Luis Valley, alongside a growing Asian and mixed-race population.
| White (non-Hispanic) | 67.1% | |
| Hispanic or Latino | 22.5% | ≈ 1.32 M |
| Black or African American | 4.6% | |
| Asian | 3.6% | |
| Two or more races | 3.9% | |
| Native American | 1.6% | |
| Mexican origin | ≈ 17.5% | Largest Hispanic subgroup |
| Vietnamese origin | ≈ 0.5% | Largest Asian subgroup |