Miami County, Indiana Age & Gender Statistics (2024)

Total Population

35,712

Median Age

41.5

Male Median

39.8

Female Median

43.7

Miami County, Indiana Population Growth

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

Miami County, Indiana Demographic Trend

Since 2010, the population of has changed by -4.3%%.

-4.3%% Growth

Miami County, Indiana Age & Gender Pyramid

Population pyramid for

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


Miami County, Indiana Historical Population Data

YearMedian AgePopulation
202441.535,712
202341.035,772
202241.135,952
202140.536,100
202039.835,684
201940.135,815
201840.035,901
201739.936,035
201639.836,093
201540.136,211
201440.336,394
201340.136,624
201239.936,850
201139.737,078
201039.937,307

Miami County, Indiana Age Group Breakdown (2024)

Age CohortPercentage
Under 55.0%
5–1715.8%
18–248.7%
25–3412.9%
35–5426.5%
55–6413.0%
65+18.2%

Dependency Ratios for Miami County, Indiana

Total Dependency Ratio:
63.9
Youth Dependency:
34.1
Old-Age Dependency:
29.8

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



Age & Gender FAQs for Miami County, Indiana

The median age in Miami County, Indiana is 41.5 years.

According to latest Census data, the total population of Miami County, Indiana is 35,712.

In Miami County, Indiana, seniors (ages 65+) make up 18.2% of the population, while children under 18 represent 15.8%.

Based on historical data since 2010, the population in Miami County, Indiana is aging.
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