Sangamon County, Illinois Age & Gender Distribution (2024)
Population distribution by age and gender for Sangamon County, Illinois
Sangamon County, Illinois Age & Gender Statistics (2024)
Total Population
194,947
Median Age
41.0
Male Median
40.0
Female Median
42.2
Sangamon County, Illinois Population Growth
Sangamon County, Illinois Demographic Trend
Since 2010, the population of has changed by -0.2%%.
-0.2%% Growth
Sangamon County, Illinois Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Sangamon County, Illinois Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 41.0 | 194,947 |
| 2023 | 40.8 | 195,217 |
| 2022 | 40.6 | 196,122 |
| 2021 | 40.5 | 196,759 |
| 2020 | 40.6 | 195,963 |
| 2019 | 40.3 | 196,861 |
| 2018 | 40.0 | 197,661 |
| 2017 | 40.1 | 198,134 |
| 2016 | 39.9 | 198,639 |
| 2015 | 39.7 | 199,016 |
| 2014 | 39.7 | 198,808 |
| 2013 | 39.5 | 198,269 |
| 2012 | 39.3 | 197,474 |
| 2011 | 39.1 | 196,393 |
| 2010 | 39.0 | 195,288 |
Sangamon County, Illinois Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.6% |
| 5–17 | 16.3% |
| 18–24 | 8.0% |
| 25–34 | 12.1% |
| 35–54 | 25.0% |
| 55–64 | 13.6% |
| 65+ | 19.4% |
Dependency Ratios for Sangamon County, Illinois
- Total Dependency Ratio:
- 70.3
- Youth Dependency:
- 37.3
- Old-Age Dependency:
- 33.1
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Sangamon County, Illinois
The median age in Sangamon County, Illinois is 41.0 years.
According to latest Census data, the total population of Sangamon County, Illinois is 194,947.
In Sangamon County, Illinois, seniors (ages 65+) make up 19.4% of the population, while children under 18 represent 16.3%.
Based on historical data since 2010, the population in Sangamon County, Illinois is aging.