Osage County, Missouri Age & Gender Statistics (2024)

Total Population

13,402

Median Age

41.1

Male Median

41.2

Female Median

41.0

Osage County, Missouri Population Growth

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

Osage County, Missouri Demographic Trend

Since 2010, the population of has changed by -2.7%%.

-2.7%% Growth

Osage County, Missouri Age & Gender Pyramid

Population pyramid for

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


Osage County, Missouri Historical Population Data

YearMedian AgePopulation
202441.113,402
202340.813,379
202241.413,374
202141.113,372
202041.313,613
201940.813,615
201840.313,619
201740.113,610
201640.013,704
201539.813,758
201439.613,812
201339.813,842
201239.213,857
201139.413,816
201039.613,768

Osage County, Missouri Age Group Breakdown (2024)

Age CohortPercentage
Under 55.6%
5–1717.1%
18–249.7%
25–3411.2%
35–5423.7%
55–6414.4%
65+18.3%

Dependency Ratios for Osage County, Missouri

Total Dependency Ratio:
69.4
Youth Dependency:
38.5
Old-Age Dependency:
31.0

The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).



Age & Gender FAQs for Osage County, Missouri

The median age in Osage County, Missouri is 41.1 years.

According to latest Census data, the total population of Osage County, Missouri is 13,402.

In Osage County, Missouri, seniors (ages 65+) make up 18.3% of the population, while children under 18 represent 17.1%.

Based on historical data since 2010, the population in Osage County, Missouri has remained stable.
Back to Overview