Louisa County, Iowa Age & Gender Statistics (2024)

Total Population

10,678

Median Age

41.9

Male Median

41.1

Female Median

43.4

Louisa County, Iowa Population Growth

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

Louisa County, Iowa Demographic Trend

Since 2010, the population of has changed by -8.6%%.

-8.6%% Growth

Louisa County, Iowa Age & Gender Pyramid

Population pyramid for

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


Louisa County, Iowa Historical Population Data

YearMedian AgePopulation
202441.910,678
202341.810,710
202242.210,823
202141.810,891
202041.511,125
201941.911,178
201841.211,223
201741.011,238
201640.711,251
201540.811,271
201440.511,305
201339.711,348
201239.311,448
201138.911,576
201038.311,683

Louisa County, Iowa Age Group Breakdown (2024)

Age CohortPercentage
Under 55.3%
5–1716.6%
18–247.4%
25–3411.5%
35–5424.1%
55–6415.0%
65+20.1%

Dependency Ratios for Louisa County, Iowa

Total Dependency Ratio:
72.6
Youth Dependency:
37.9
Old-Age Dependency:
34.7

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



Age & Gender FAQs for Louisa County, Iowa

The median age in Louisa County, Iowa is 41.9 years.

According to latest Census data, the total population of Louisa County, Iowa is 10,678.

In Louisa County, Iowa, seniors (ages 65+) make up 20.1% of the population, while children under 18 represent 16.6%.

Based on historical data since 2010, the population in Louisa County, Iowa is aging.
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