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

Population trends in
Figure 1: Annual population growth trend for (2010–2024).

Marion County, Kentucky Demographic Trend

Since 2010, the population of has changed by +0.7%%.

+0.7%% Growth

Marion County, Kentucky Age & Gender Pyramid

Population pyramid for

Figure 2: Population distribution by age and gender for 2024.


Marion County, Kentucky Historical Population Data

YearMedian AgePopulation
202440.419,749
202339.619,680
202239.819,627
202139.819,556
202040.019,257
201939.319,244
201839.719,232
201739.719,335
201639.119,497
201538.819,717
201438.419,965
201338.519,943
201238.219,872
201138.119,735
201037.819,619

Marion County, Kentucky Age Group Breakdown (2024)

Age CohortPercentage
Under 55.8%
5–1718.0%
18–247.3%
25–3412.6%
35–5425.0%
55–6414.0%
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.
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