Jersey County, Illinois Age & Gender Distribution (2024)
Population distribution by age and gender for Jersey County, Illinois
Jersey County, Illinois Age & Gender Statistics (2024)
Total Population
21,274
Median Age
43.7
Male Median
42.7
Female Median
44.4
Jersey County, Illinois Population Growth
Jersey County, Illinois Demographic Trend
Since 2010, the population of has changed by -7.2%%.
-7.2%% Growth
Jersey County, Illinois Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Jersey County, Illinois Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 43.7 | 21,274 |
| 2023 | 43.2 | 21,336 |
| 2022 | 42.8 | 21,462 |
| 2021 | 43.0 | 21,533 |
| 2020 | 43.0 | 21,776 |
| 2019 | 42.9 | 21,937 |
| 2018 | 42.7 | 22,069 |
| 2017 | 42.5 | 22,215 |
| 2016 | 42.4 | 22,441 |
| 2015 | 42.3 | 22,625 |
| 2014 | 42.1 | 22,751 |
| 2013 | 41.4 | 22,850 |
| 2012 | 41.3 | 22,939 |
| 2011 | 39.9 | 22,972 |
| 2010 | 39.3 | 22,932 |
Jersey County, Illinois Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 4.6% |
| 5–17 | 15.1% |
| 18–24 | 9.9% |
| 25–34 | 10.5% |
| 35–54 | 24.1% |
| 55–64 | 15.2% |
| 65+ | 20.6% |
Dependency Ratios for Jersey County, Illinois
- Total Dependency Ratio:
- 67.8
- Youth Dependency:
- 33.2
- Old-Age Dependency:
- 34.6
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Jersey County, Illinois
The median age in Jersey County, Illinois is 43.7 years.
According to latest Census data, the total population of Jersey County, Illinois is 21,274.
In Jersey County, Illinois, seniors (ages 65+) make up 20.6% of the population, while children under 18 represent 15.1%.
Based on historical data since 2010, the population in Jersey County, Illinois is aging.