Shelby County, Illinois Age & Gender Distribution (2024)
Population distribution by age and gender for Shelby County, Illinois
Shelby County, Illinois Age & Gender Statistics (2024)
Total Population
20,720
Median Age
45.3
Male Median
44.1
Female Median
46.7
Shelby County, Illinois Population Growth
Shelby County, Illinois Demographic Trend
Since 2010, the population of has changed by -7.3%%.
-7.3%% Growth
Shelby County, Illinois Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Shelby County, Illinois Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 45.3 | 20,720 |
| 2023 | 45.5 | 20,867 |
| 2022 | 44.9 | 21,042 |
| 2021 | 45.0 | 21,160 |
| 2020 | 45.1 | 21,623 |
| 2019 | 45.1 | 21,737 |
| 2018 | 44.8 | 21,832 |
| 2017 | 44.6 | 21,906 |
| 2016 | 44.4 | 22,011 |
| 2015 | 44.4 | 22,115 |
| 2014 | 44.2 | 22,216 |
| 2013 | 43.9 | 22,266 |
| 2012 | 44.0 | 22,316 |
| 2011 | 43.5 | 22,330 |
| 2010 | 43.1 | 22,362 |
Shelby County, Illinois Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.2% |
| 5–17 | 16.1% |
| 18–24 | 6.3% |
| 25–34 | 10.5% |
| 35–54 | 23.4% |
| 55–64 | 14.8% |
| 65+ | 23.7% |
Dependency Ratios for Shelby County, Illinois
- Total Dependency Ratio:
- 81.7
- Youth Dependency:
- 38.7
- Old-Age Dependency:
- 43.0
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Shelby County, Illinois
The median age in Shelby County, Illinois is 45.3 years.
According to latest Census data, the total population of Shelby County, Illinois is 20,720.
In Shelby County, Illinois, seniors (ages 65+) make up 23.7% of the population, while children under 18 represent 16.1%.
Based on historical data since 2010, the population in Shelby County, Illinois is aging.