Sioux County, North Dakota
Sioux County | |
|---|---|
Postcard. Historic Sioux County Courthouse at Fort Yates, North Dakota. | |
Location within the U.S. state of North Dakota | |
North Dakota's location within the U.S. | |
| Coordinates: 46°06′38″N 101°03′41″W / 46.110618°N 101.061284°W | |
| Country | United States |
| State | North Dakota |
| Founded | September 3, 1914 (created) September 12, 1914 (organized) |
| Named after | Sioux people |
| Seat | Fort Yates |
| Largest community | Cannon Ball |
| Area | |
• Total | 1,128.203 sq mi (2,922.03 km2) |
| • Land | 1,094.052 sq mi (2,833.58 km2) |
| • Water | 34.151 sq mi (88.45 km2) 3.03% |
| Population (2020) | |
• Total | 3,898 |
• Estimate (2024) | 3,713 |
| • Density | 3.393/sq mi (1.310/km2) |
| Time zones | |
| (eastern portion) | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| (western portion) | UTC−7 (Mountain) |
| • Summer (DST) | UTC−6 (MDT) |
| Area code | 701 |
| Congressional district | At-large |
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Sioux County is a county located along the southern border of the U.S. state of North Dakota. As of the 2020 census, the population was 3,898, and was estimated to be 3,713 in 2024. Its eastern border is the Missouri River and the county seat is Fort Yates.