Cowlitz County, Washington Age & Gender Distribution (2024)
Population distribution by age and gender for Cowlitz County, Washington
Cowlitz County, Washington Age & Gender Statistics (2024)
Total Population
112,360
Median Age
41.5
Male Median
40.5
Female Median
42.5
Cowlitz County, Washington Population Growth
Cowlitz County, Washington Demographic Trend
Since 2010, the population of has changed by +11.0%%.
+11.0%% Growth
Cowlitz County, Washington Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Cowlitz County, Washington Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 41.5 | 112,360 |
| 2023 | 41.1 | 111,539 |
| 2022 | 40.8 | 110,621 |
| 2021 | 40.8 | 109,457 |
| 2020 | 41.0 | 108,399 |
| 2019 | 41.3 | 106,778 |
| 2018 | 41.5 | 105,112 |
| 2017 | 41.4 | 103,590 |
| 2016 | 41.7 | 102,854 |
| 2015 | 41.2 | 102,338 |
| 2014 | 40.7 | 102,072 |
| 2013 | 40.5 | 102,110 |
| 2012 | 40.1 | 102,138 |
| 2011 | 39.9 | 101,901 |
| 2010 | 39.5 | 101,244 |
Cowlitz County, Washington Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.7% |
| 5–17 | 16.8% |
| 18–24 | 7.3% |
| 25–34 | 12.7% |
| 35–54 | 24.4% |
| 55–64 | 13.3% |
| 65+ | 19.8% |
Dependency Ratios for Cowlitz County, Washington
- Total Dependency Ratio:
- 73.1
- Youth Dependency:
- 38.9
- Old-Age Dependency:
- 34.3
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Cowlitz County, Washington
The median age in Cowlitz County, Washington is 41.5 years.
According to latest Census data, the total population of Cowlitz County, Washington is 112,360.
In Cowlitz County, Washington, seniors (ages 65+) make up 19.8% of the population, while children under 18 represent 16.8%.
Based on historical data since 2010, the population in Cowlitz County, Washington is aging.