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County · South Dakota
Union County
17,402Population
3.5 %Change since 2020
32Net migration
2.1 %Unemployment rate
Facts
- Population
- 17,402 (2024)
- Change since 2020
- 3.5 %
- Net migration
- 32 (2023)
- Unemployment rate
- 2.1 % (2025)
- State
- South Dakota
- Population base, April 2020
- 16,814 (2020)
- Births
- 214 (2023)
- Births per 1,000 residents, 2023
- 12.3
- Deaths
- 137 (2023)
- Deaths per 1,000 residents, 2023
- 7.9
- Natural change, 2023
- 77
- International migration
- 11 (2023)
- Domestic migration
- 21 (2023)
- Net migration per 1,000, 2023
- 1.8
- Postal code
- SD
- FIPS code
- 46127
Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS
Unemployment rate, annual average
| Period | Value |
|---|---|
| 2025 | 2.1 % |
| 2024 | 2.0 % |
| 2023 | 1.9 % |
| 2022 | 2.1 % |
| 2021 | 2.9 % |
| 2020 | 4.5 % |
| 2019 | 2.8 % |
| 2018 | 2.9 % |
| 2017 | 3.2 % |
| 2016 | 3.1 % |
| 2015 | 3.3 % |
| 2014 | 3.6 % |
Population estimates, 2020–2024
| Period | Value |
|---|---|
| 2024 | 17,402 |
| 2023 | 17,186 |
| 2022 | 17,083 |
| 2021 | 16,875 |
| 2020 | 16,857 |