Larimer County, Colorado Age & Gender Distribution (2024)
Population distribution by age and gender for Larimer County, Colorado
Larimer County, Colorado Age & Gender Statistics (2024)
Total Population
367,368
Median Age
36.8
Male Median
36.1
Female Median
37.8
Larimer County, Colorado Population Growth

Larimer County, Colorado Demographic Trend
Since 2010, the population of has changed by +26.2%%.
+26.2%% Growth
Larimer County, Colorado Age & Gender Pyramid

Figure 2: Population distribution by age and gender for 2024.
Larimer County, Colorado Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 36.8 | 367,368 |
| 2023 | 36.6 | 363,561 |
| 2022 | 36.3 | 359,363 |
| 2021 | 36.3 | 354,670 |
| 2020 | 36.2 | 350,523 |
| 2019 | 36.0 | 344,786 |
| 2018 | 35.9 | 338,161 |
| 2017 | 35.7 | 330,976 |
| 2016 | 35.6 | 325,228 |
| 2015 | 35.5 | 318,227 |
| 2014 | 35.5 | 311,435 |
| 2013 | 35.5 | 305,798 |
| 2012 | 35.4 | 300,870 |
| 2011 | 35.1 | 296,107 |
| 2010 | 35.0 | 291,162 |
Larimer County, Colorado Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 4.3% |
| 5–17 | 14.0% |
| 18–24 | 14.2% |
| 25–34 | 14.7% |
| 35–54 | 24.1% |
| 55–64 | 11.3% |
| 65+ | 17.4% |
Dependency Ratios for Larimer County, Colorado
- Total Dependency Ratio:
- 55.5
- Youth Dependency:
- 28.5
- Old-Age Dependency:
- 27.0
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Larimer County, Colorado
The median age in Larimer County, Colorado is 36.8 years.
According to latest Census data, the total population of Larimer County, Colorado is 367,368.
In Larimer County, Colorado, seniors (ages 65+) make up 17.4% of the population, while children under 18 represent 14.0%.
Based on historical data since 2010, the population in Larimer County, Colorado is aging.