Washington County, Iowa Age & Gender Distribution (2024)
Population distribution by age and gender for Washington County, Iowa
Washington County, Iowa Age & Gender Statistics (2024)
Total Population
22,561
Median Age
40.7
Male Median
40.4
Female Median
41.0
Washington County, Iowa Population Growth
Washington County, Iowa Demographic Trend
Since 2010, the population of has changed by +4.3%%.
+4.3%% Growth
Washington County, Iowa Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Washington County, Iowa Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 40.7 | 22,561 |
| 2023 | 40.3 | 22,539 |
| 2022 | 40.1 | 22,534 |
| 2021 | 40.2 | 22,525 |
| 2020 | 40.5 | 22,100 |
| 2019 | 40.3 | 22,100 |
| 2018 | 40.8 | 22,143 |
| 2017 | 40.8 | 22,095 |
| 2016 | 41.2 | 22,115 |
| 2015 | 41.5 | 22,017 |
| 2014 | 41.8 | 21,906 |
| 2013 | 42.0 | 21,834 |
| 2012 | 41.9 | 21,765 |
| 2011 | 41.7 | 21,707 |
| 2010 | 41.1 | 21,626 |
Washington County, Iowa Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 6.4% |
| 5–17 | 18.1% |
| 18–24 | 7.3% |
| 25–34 | 11.3% |
| 35–54 | 23.5% |
| 55–64 | 13.3% |
| 65+ | 20.1% |
Dependency Ratios for Washington County, Iowa
- Total Dependency Ratio:
- 80.6
- Youth Dependency:
- 44.3
- Old-Age Dependency:
- 36.3
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Washington County, Iowa
The median age in Washington County, Iowa is 40.7 years.
According to latest Census data, the total population of Washington County, Iowa is 22,561.
In Washington County, Iowa, seniors (ages 65+) make up 20.1% of the population, while children under 18 represent 18.1%.
Based on historical data since 2010, the population in Washington County, Iowa has remained stable.