Union County, South Dakota Age & Gender Distribution (2024)
Population distribution by age and gender for Union County, South Dakota
Union County, South Dakota Age & Gender Statistics (2024)
Total Population
17,081
Median Age
41.5
Male Median
39.7
Female Median
42.8
Union County, South Dakota Population Growth
Union County, South Dakota Demographic Trend
Since 2010, the population of has changed by +22.9%%.
+22.9%% Growth
Union County, South Dakota Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Union County, South Dakota Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 41.5 | 17,081 |
| 2023 | 40.4 | 16,916 |
| 2022 | 40.1 | 16,700 |
| 2021 | 39.7 | 16,424 |
| 2020 | 40.2 | 15,659 |
| 2019 | 40.0 | 15,368 |
| 2018 | 40.6 | 15,177 |
| 2017 | 41.1 | 14,929 |
| 2016 | 41.6 | 14,842 |
| 2015 | 40.8 | 14,842 |
| 2014 | 40.5 | 14,751 |
| 2013 | 39.9 | 14,575 |
| 2012 | 40.4 | 14,377 |
| 2011 | 40.2 | 14,155 |
| 2010 | 40.1 | 13,903 |
Union County, South Dakota Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.1% |
| 5–17 | 19.0% |
| 18–24 | 6.6% |
| 25–34 | 12.0% |
| 35–54 | 24.8% |
| 55–64 | 13.0% |
| 65+ | 19.5% |
Dependency Ratios for Union County, South Dakota
- Total Dependency Ratio:
- 77.1
- Youth Dependency:
- 42.6
- Old-Age Dependency:
- 34.5
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Union County, South Dakota
The median age in Union County, South Dakota is 41.5 years.
According to latest Census data, the total population of Union County, South Dakota is 17,081.
In Union County, South Dakota, seniors (ages 65+) make up 19.5% of the population, while children under 18 represent 19.0%.
Based on historical data since 2010, the population in Union County, South Dakota has remained stable.