Marshall County, Illinois Age & Gender Distribution (2024)
Population distribution by age and gender for Marshall County, Illinois
Marshall County, Illinois Age & Gender Statistics (2024)
Total Population
11,647
Median Age
46.1
Male Median
44.9
Female Median
46.6
Marshall County, Illinois Population Growth
Marshall County, Illinois Demographic Trend
Since 2010, the population of has changed by -8.7%%.
-8.7%% Growth
Marshall County, Illinois Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Marshall County, Illinois Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 46.1 | 11,647 |
| 2023 | 45.9 | 11,715 |
| 2022 | 46.2 | 11,740 |
| 2021 | 46.5 | 11,781 |
| 2020 | 46.4 | 11,562 |
| 2019 | 46.0 | 11,679 |
| 2018 | 46.3 | 11,794 |
| 2017 | 46.3 | 11,925 |
| 2016 | 46.4 | 12,060 |
| 2015 | 45.9 | 12,173 |
| 2014 | 45.8 | 12,319 |
| 2013 | 45.5 | 12,454 |
| 2012 | 44.9 | 12,567 |
| 2011 | 44.2 | 12,692 |
| 2010 | 43.7 | 12,763 |
Marshall County, Illinois Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 4.9% |
| 5–17 | 15.5% |
| 18–24 | 6.5% |
| 25–34 | 10.9% |
| 35–54 | 23.3% |
| 55–64 | 14.9% |
| 65+ | 24.0% |
Dependency Ratios for Marshall County, Illinois
- Total Dependency Ratio:
- 80.0
- Youth Dependency:
- 36.8
- Old-Age Dependency:
- 43.3
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Marshall County, Illinois
The median age in Marshall County, Illinois is 46.1 years.
According to latest Census data, the total population of Marshall County, Illinois is 11,647.
In Marshall County, Illinois, seniors (ages 65+) make up 24.0% of the population, while children under 18 represent 15.5%.
Based on historical data since 2010, the population in Marshall County, Illinois is aging.