Louisa County, Iowa Age & Gender Distribution (2024)
Population distribution by age and gender for Louisa County, Iowa
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

Louisa County, Iowa Demographic Trend
Since 2010, the population of has changed by -8.6%%.
-8.6%% Growth
Louisa County, Iowa Age & Gender Pyramid

Figure 2: Population distribution by age and gender for 2024.
Louisa County, Iowa Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 41.9 | 10,678 |
| 2023 | 41.8 | 10,710 |
| 2022 | 42.2 | 10,823 |
| 2021 | 41.8 | 10,891 |
| 2020 | 41.5 | 11,125 |
| 2019 | 41.9 | 11,178 |
| 2018 | 41.2 | 11,223 |
| 2017 | 41.0 | 11,238 |
| 2016 | 40.7 | 11,251 |
| 2015 | 40.8 | 11,271 |
| 2014 | 40.5 | 11,305 |
| 2013 | 39.7 | 11,348 |
| 2012 | 39.3 | 11,448 |
| 2011 | 38.9 | 11,576 |
| 2010 | 38.3 | 11,683 |
Louisa County, Iowa Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.3% |
| 5–17 | 16.6% |
| 18–24 | 7.4% |
| 25–34 | 11.5% |
| 35–54 | 24.1% |
| 55–64 | 15.0% |
| 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.