Lee County, Illinois Age & Gender Distribution (2024)
Population distribution by age and gender for Lee County, Illinois
Lee County, Illinois Age & Gender Statistics (2024)
Total Population
33,869
Median Age
43.1
Male Median
42.4
Female Median
44.4
Lee County, Illinois Population Growth
Lee County, Illinois Demographic Trend
Since 2010, the population of has changed by -6.2%%.
-6.2%% Growth
Lee County, Illinois Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Lee County, Illinois Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 43.1 | 33,869 |
| 2023 | 43.0 | 34,058 |
| 2022 | 42.8 | 34,221 |
| 2021 | 42.8 | 34,373 |
| 2020 | 43.5 | 34,204 |
| 2019 | 43.2 | 34,389 |
| 2018 | 43.4 | 34,527 |
| 2017 | 42.7 | 34,670 |
| 2016 | 42.7 | 34,718 |
| 2015 | 42.2 | 35,027 |
| 2014 | 41.8 | 35,248 |
| 2013 | 41.5 | 35,535 |
| 2012 | 41.6 | 35,778 |
| 2011 | 40.9 | 36,012 |
| 2010 | 40.8 | 36,100 |
Lee County, Illinois Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 4.7% |
| 5–17 | 14.9% |
| 18–24 | 6.6% |
| 25–34 | 13.4% |
| 35–54 | 24.4% |
| 55–64 | 14.5% |
| 65+ | 21.3% |
Dependency Ratios for Lee County, Illinois
- Total Dependency Ratio:
- 69.5
- Youth Dependency:
- 33.3
- Old-Age Dependency:
- 36.2
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Lee County, Illinois
The median age in Lee County, Illinois is 43.1 years.
According to latest Census data, the total population of Lee County, Illinois is 33,869.
In Lee County, Illinois, seniors (ages 65+) make up 21.3% of the population, while children under 18 represent 14.9%.
Based on historical data since 2010, the population in Lee County, Illinois is aging.