Washington County, Illinois Age & Gender Distribution (2024)
Population distribution by age and gender for Washington County, Illinois
Washington County, Illinois Age & Gender Statistics (2024)
Total Population
13,627
Median Age
44.2
Male Median
43.1
Female Median
45.4
Washington County, Illinois Population Growth
Washington County, Illinois Demographic Trend
Since 2010, the population of has changed by -8.2%%.
-8.2%% Growth
Washington County, Illinois Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Washington County, Illinois Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 44.2 | 13,627 |
| 2023 | 44.2 | 13,682 |
| 2022 | 44.0 | 13,781 |
| 2021 | 44.2 | 13,827 |
| 2020 | 44.5 | 13,967 |
| 2019 | 43.9 | 14,058 |
| 2018 | 43.4 | 14,155 |
| 2017 | 43.0 | 14,260 |
| 2016 | 42.8 | 14,369 |
| 2015 | 42.6 | 14,457 |
| 2014 | 42.9 | 14,527 |
| 2013 | 42.5 | 14,626 |
| 2012 | 42.4 | 14,692 |
| 2011 | 41.7 | 14,746 |
| 2010 | 41.8 | 14,841 |
Washington County, Illinois Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.2% |
| 5–17 | 15.6% |
| 18–24 | 7.1% |
| 25–34 | 10.7% |
| 35–54 | 24.5% |
| 55–64 | 15.2% |
| 65+ | 21.6% |
Dependency Ratios for Washington County, Illinois
- Total Dependency Ratio:
- 73.7
- Youth Dependency:
- 36.2
- Old-Age Dependency:
- 37.6
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Washington County, Illinois
The median age in Washington County, Illinois is 44.2 years.
According to latest Census data, the total population of Washington County, Illinois is 13,627.
In Washington County, Illinois, seniors (ages 65+) make up 21.6% of the population, while children under 18 represent 15.6%.
Based on historical data since 2010, the population in Washington County, Illinois is aging.