McDonough County, Illinois Age & Gender Distribution (2024)
Population distribution by age and gender for McDonough County, Illinois
McDonough County, Illinois Age & Gender Statistics (2024)
Total Population
26,920
Median Age
34.9
Male Median
33.6
Female Median
35.7
McDonough County, Illinois Population Growth
McDonough County, Illinois Demographic Trend
Since 2010, the population of has changed by -17.8%%.
-17.8%% Growth
McDonough County, Illinois Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
McDonough County, Illinois Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 34.9 | 26,920 |
| 2023 | 35.1 | 27,102 |
| 2022 | 34.9 | 27,370 |
| 2021 | 33.7 | 27,743 |
| 2020 | 33.7 | 30,107 |
| 2019 | 33.0 | 30,479 |
| 2018 | 32.1 | 30,875 |
| 2017 | 31.3 | 31,597 |
| 2016 | 30.7 | 31,727 |
| 2015 | 30.7 | 32,009 |
| 2014 | 29.9 | 32,388 |
| 2013 | 29.5 | 32,549 |
| 2012 | 29.4 | 32,568 |
| 2011 | 29.1 | 32,673 |
| 2010 | 29.2 | 32,730 |
McDonough County, Illinois Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 4.9% |
| 5–17 | 13.1% |
| 18–24 | 20.8% |
| 25–34 | 11.3% |
| 35–54 | 19.4% |
| 55–64 | 11.2% |
| 65+ | 19.3% |
Dependency Ratios for McDonough County, Illinois
- Total Dependency Ratio:
- 59.6
- Youth Dependency:
- 28.7
- 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 McDonough County, Illinois
The median age in McDonough County, Illinois is 34.9 years.
According to latest Census data, the total population of McDonough County, Illinois is 26,920.
In McDonough County, Illinois, seniors (ages 65+) make up 19.3% of the population, while children under 18 represent 13.1%.
Based on historical data since 2010, the population in McDonough County, Illinois is aging.