Knox County, Illinois Age & Gender Distribution (2024)
Population distribution by age and gender for Knox County, Illinois
Knox County, Illinois Age & Gender Statistics (2024)
Total Population
49,046
Median Age
42.6
Male Median
40.9
Female Median
44.3
Knox County, Illinois Population Growth
Knox County, Illinois Demographic Trend
Since 2010, the population of has changed by -7.3%%.
-7.3%% Growth
Knox County, Illinois Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Knox County, Illinois Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 42.6 | 49,046 |
| 2023 | 42.4 | 49,294 |
| 2022 | 42.3 | 49,751 |
| 2021 | 41.8 | 50,193 |
| 2020 | 42.0 | 50,052 |
| 2019 | 42.1 | 50,508 |
| 2018 | 42.1 | 50,999 |
| 2017 | 42.2 | 51,374 |
| 2016 | 42.1 | 51,752 |
| 2015 | 42.1 | 52,112 |
| 2014 | 41.5 | 52,447 |
| 2013 | 41.8 | 52,545 |
| 2012 | 41.8 | 52,698 |
| 2011 | 41.9 | 52,881 |
| 2010 | 41.4 | 52,932 |
Knox County, Illinois Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.4% |
| 5–17 | 14.8% |
| 18–24 | 9.9% |
| 25–34 | 10.9% |
| 35–54 | 23.5% |
| 55–64 | 13.3% |
| 65+ | 22.2% |
Dependency Ratios for Knox County, Illinois
- Total Dependency Ratio:
- 73.7
- Youth Dependency:
- 35.1
- Old-Age Dependency:
- 38.6
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Knox County, Illinois
The median age in Knox County, Illinois is 42.6 years.
According to latest Census data, the total population of Knox County, Illinois is 49,046.
In Knox County, Illinois, seniors (ages 65+) make up 22.2% of the population, while children under 18 represent 14.8%.
Based on historical data since 2010, the population in Knox County, Illinois has remained stable.