Madison County, Illinois Age & Gender Distribution (2024)
Population distribution by age and gender for Madison County, Illinois
Madison County, Illinois Age & Gender Statistics (2024)
Total Population
264,238
Median Age
40.2
Male Median
39.3
Female Median
41.2
Madison County, Illinois Population Growth
Madison County, Illinois Demographic Trend
Since 2010, the population of has changed by -1.4%%.
-1.4%% Growth
Madison County, Illinois Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Madison County, Illinois Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 40.2 | 264,238 |
| 2023 | 40.2 | 264,631 |
| 2022 | 39.9 | 265,512 |
| 2021 | 40.2 | 266,112 |
| 2020 | 40.3 | 264,403 |
| 2019 | 40.2 | 264,776 |
| 2018 | 40.1 | 265,670 |
| 2017 | 40.0 | 266,153 |
| 2016 | 39.7 | 266,759 |
| 2015 | 39.5 | 267,356 |
| 2014 | 39.2 | 267,937 |
| 2013 | 38.8 | 268,373 |
| 2012 | 38.4 | 268,586 |
| 2011 | 38.4 | 268,473 |
| 2010 | 38.2 | 268,005 |
Madison County, Illinois Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.2% |
| 5–17 | 16.1% |
| 18–24 | 8.8% |
| 25–34 | 12.7% |
| 35–54 | 25.0% |
| 55–64 | 13.7% |
| 65+ | 18.5% |
Dependency Ratios for Madison County, Illinois
- Total Dependency Ratio:
- 66.2
- Youth Dependency:
- 35.4
- Old-Age Dependency:
- 30.8
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Madison County, Illinois
The median age in Madison County, Illinois is 40.2 years.
According to latest Census data, the total population of Madison County, Illinois is 264,238.
In Madison County, Illinois, seniors (ages 65+) make up 18.5% of the population, while children under 18 represent 16.1%.
Based on historical data since 2010, the population in Madison County, Illinois is aging.