Marion County, Kentucky Age & Gender Distribution (2024)
Population distribution by age and gender for Marion County, Kentucky
Marion County, Kentucky Age & Gender Statistics (2024)
Total Population
19,749
Median Age
40.4
Male Median
38.9
Female Median
43.0
Marion County, Kentucky Population Growth

Marion County, Kentucky Demographic Trend
Since 2010, the population of has changed by +0.7%%.
+0.7%% Growth
Marion County, Kentucky Age & Gender Pyramid

Figure 2: Population distribution by age and gender for 2024.
Marion County, Kentucky Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 40.4 | 19,749 |
| 2023 | 39.6 | 19,680 |
| 2022 | 39.8 | 19,627 |
| 2021 | 39.8 | 19,556 |
| 2020 | 40.0 | 19,257 |
| 2019 | 39.3 | 19,244 |
| 2018 | 39.7 | 19,232 |
| 2017 | 39.7 | 19,335 |
| 2016 | 39.1 | 19,497 |
| 2015 | 38.8 | 19,717 |
| 2014 | 38.4 | 19,965 |
| 2013 | 38.5 | 19,943 |
| 2012 | 38.2 | 19,872 |
| 2011 | 38.1 | 19,735 |
| 2010 | 37.8 | 19,619 |
Marion County, Kentucky Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.8% |
| 5–17 | 18.0% |
| 18–24 | 7.3% |
| 25–34 | 12.6% |
| 35–54 | 25.0% |
| 55–64 | 14.0% |
| 65+ | 17.3% |
Dependency Ratios for Marion County, Kentucky
- Total Dependency Ratio:
- 69.9
- Youth Dependency:
- 40.4
- Old-Age Dependency:
- 29.5
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Marion County, Kentucky
The median age in Marion County, Kentucky is 40.4 years.
According to latest Census data, the total population of Marion County, Kentucky is 19,749.
In Marion County, Kentucky, seniors (ages 65+) make up 17.3% of the population, while children under 18 represent 18.0%.
Based on historical data since 2010, the population in Marion County, Kentucky is aging.