Kendall County, Illinois Age & Gender Distribution (2024)
Population distribution by age and gender for Kendall County, Illinois
Kendall County, Illinois Age & Gender Statistics (2024)
Total Population
137,675
Median Age
36.3
Male Median
35.5
Female Median
37.2
Kendall County, Illinois Population Growth
Kendall County, Illinois Demographic Trend
Since 2010, the population of has changed by +30.4%%.
+30.4%% Growth
Kendall County, Illinois Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Kendall County, Illinois Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 36.3 | 137,675 |
| 2023 | 36.0 | 135,053 |
| 2022 | 36.1 | 132,795 |
| 2021 | 35.8 | 130,757 |
| 2020 | 35.5 | 127,583 |
| 2019 | 35.2 | 126,054 |
| 2018 | 34.9 | 124,626 |
| 2017 | 34.5 | 122,933 |
| 2016 | 34.4 | 121,452 |
| 2015 | 33.8 | 120,036 |
| 2014 | 33.7 | 118,194 |
| 2013 | 33.4 | 116,366 |
| 2012 | 33.0 | 114,226 |
| 2011 | 32.8 | 110,767 |
| 2010 | 32.7 | 105,602 |
Kendall County, Illinois Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 6.1% |
| 5–17 | 21.0% |
| 18–24 | 8.6% |
| 25–34 | 12.5% |
| 35–54 | 30.3% |
| 55–64 | 10.4% |
| 65+ | 11.2% |
Dependency Ratios for Kendall County, Illinois
- Total Dependency Ratio:
- 62.0
- Youth Dependency:
- 43.8
- Old-Age Dependency:
- 18.2
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Kendall County, Illinois
The median age in Kendall County, Illinois is 36.3 years.
According to latest Census data, the total population of Kendall County, Illinois is 137,675.
In Kendall County, Illinois, seniors (ages 65+) make up 11.2% of the population, while children under 18 represent 21.0%.
Based on historical data since 2010, the population in Kendall County, Illinois is aging.