Statistics for Sioux County
Latest official figures for Sioux County, each linked to its source.
Demography
| Population | 36,774 persons | 2025 |
| Median age | 33.8 years | 2024 |
| Live births, July to June | 460 count | 2025 |
| Deaths, July to June | 269 count | 2025 |
| Crude birth rate, July to June | 12.51 per 1,000 inhabitants | 2025 |
| Crude death rate, July to June | 7.31 per 1,000 inhabitants | 2025 |
Labor market
| Unemployment rate | 2.2 % | 2026-08 |
Income and living conditions
| Poverty rate (US official measure) | 7.3 % | 2024 |
| Median household income | 86,098 USD | 2024 |
Economy
| Gross domestic product (GDP), US dollars | 3,920.1 USD million | 2024 |
| Real GDP growth | 18.4 % | 2024 |