Sioux County, Iowa Age & Gender Distribution (2024)
Population distribution by age and gender for Sioux County, Iowa
Sioux County, Iowa Age & Gender Statistics (2024)
Total Population
36,212
Median Age
33.8
Male Median
33.5
Female Median
34.5
Sioux County, Iowa Population Growth
Sioux County, Iowa Demographic Trend
Since 2010, the population of has changed by +8.5%%.
+8.5%% Growth
Sioux County, Iowa Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Sioux County, Iowa Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 33.8 | 36,212 |
| 2023 | 34.0 | 35,984 |
| 2022 | 34.4 | 35,815 |
| 2021 | 33.8 | 35,647 |
| 2020 | 33.6 | 34,900 |
| 2019 | 33.4 | 34,827 |
| 2018 | 33.2 | 34,825 |
| 2017 | 33.3 | 34,692 |
| 2016 | 33.3 | 34,621 |
| 2015 | 33.3 | 34,509 |
| 2014 | 33.2 | 34,261 |
| 2013 | 33.2 | 34,050 |
| 2012 | 32.9 | 33,776 |
| 2011 | 32.9 | 33,545 |
| 2010 | 32.7 | 33,377 |
Sioux County, Iowa Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 7.1% |
| 5–17 | 20.0% |
| 18–24 | 13.5% |
| 25–34 | 10.5% |
| 35–54 | 21.7% |
| 55–64 | 10.9% |
| 65+ | 16.2% |
Dependency Ratios for Sioux County, Iowa
- Total Dependency Ratio:
- 76.6
- Youth Dependency:
- 48.0
- Old-Age Dependency:
- 28.6
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Sioux County, Iowa
The median age in Sioux County, Iowa is 33.8 years.
According to latest Census data, the total population of Sioux County, Iowa is 36,212.
In Sioux County, Iowa, seniors (ages 65+) make up 16.2% of the population, while children under 18 represent 20.0%.
Based on historical data since 2010, the population in Sioux County, Iowa has remained stable.