Mason County, Illinois Age & Gender Distribution (2024)
Population distribution by age and gender for Mason County, Illinois
Mason County, Illinois Age & Gender Statistics (2024)
Total Population
12,745
Median Age
45.4
Male Median
44.6
Female Median
45.9
Mason County, Illinois Population Growth
Mason County, Illinois Demographic Trend
Since 2010, the population of has changed by -14.6%%.
-14.6%% Growth
Mason County, Illinois Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Mason County, Illinois Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 45.4 | 12,745 |
| 2023 | 45.5 | 12,878 |
| 2022 | 45.4 | 13,074 |
| 2021 | 45.2 | 13,225 |
| 2020 | 45.4 | 13,486 |
| 2019 | 45.2 | 13,621 |
| 2018 | 45.3 | 13,778 |
| 2017 | 45.5 | 13,904 |
| 2016 | 45.1 | 13,931 |
| 2015 | 44.7 | 14,126 |
| 2014 | 44.9 | 14,309 |
| 2013 | 44.6 | 14,508 |
| 2012 | 44.3 | 14,636 |
| 2011 | 43.4 | 14,788 |
| 2010 | 42.5 | 14,921 |
Mason County, Illinois Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 4.7% |
| 5–17 | 16.0% |
| 18–24 | 6.9% |
| 25–34 | 10.8% |
| 35–54 | 23.4% |
| 55–64 | 15.1% |
| 65+ | 23.1% |
Dependency Ratios for Mason County, Illinois
- Total Dependency Ratio:
- 78.0
- Youth Dependency:
- 37.0
- Old-Age Dependency:
- 41.1
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Mason County, Illinois
The median age in Mason County, Illinois is 45.4 years.
According to latest Census data, the total population of Mason County, Illinois is 12,745.
In Mason County, Illinois, seniors (ages 65+) make up 23.1% of the population, while children under 18 represent 16.0%.
Based on historical data since 2010, the population in Mason County, Illinois is aging.