Arapahoe County, Colorado Age & Gender Distribution (2024)
Population distribution by age and gender for Arapahoe County, Colorado
Arapahoe County, Colorado Age & Gender Statistics (2024)
Total Population
659,844
Median Age
37.3
Male Median
36.4
Female Median
38.3
Arapahoe County, Colorado Population Growth
Arapahoe County, Colorado Demographic Trend
Since 2010, the population of has changed by +19.4%%.
+19.4%% Growth
Arapahoe County, Colorado Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Arapahoe County, Colorado Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 37.3 | 659,844 |
| 2023 | 37.3 | 655,709 |
| 2022 | 37.1 | 654,453 |
| 2021 | 37.0 | 651,621 |
| 2020 | 36.8 | 649,980 |
| 2019 | 36.6 | 644,560 |
| 2018 | 36.5 | 636,671 |
| 2017 | 36.4 | 626,612 |
| 2016 | 36.3 | 617,668 |
| 2015 | 36.1 | 608,310 |
| 2014 | 36.0 | 596,684 |
| 2013 | 35.9 | 585,333 |
| 2012 | 35.7 | 574,357 |
| 2011 | 35.6 | 563,508 |
| 2010 | 35.5 | 552,860 |
Arapahoe County, Colorado Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.7% |
| 5–17 | 16.8% |
| 18–24 | 8.2% |
| 25–34 | 15.6% |
| 35–54 | 27.7% |
| 55–64 | 11.5% |
| 65+ | 14.4% |
Dependency Ratios for Arapahoe County, Colorado
- Total Dependency Ratio:
- 58.8
- Youth Dependency:
- 35.9
- Old-Age Dependency:
- 22.9
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Arapahoe County, Colorado
The median age in Arapahoe County, Colorado is 37.3 years.
According to latest Census data, the total population of Arapahoe County, Colorado is 659,844.
In Arapahoe County, Colorado, seniors (ages 65+) make up 14.4% of the population, while children under 18 represent 16.8%.
Based on historical data since 2010, the population in Arapahoe County, Colorado is aging.