Sioux County, North Dakota

Sioux County
Postcard. Historic Sioux County Courthouse at Fort Yates, North Dakota.
Map of North Dakota highlighting Sioux County
Location within the U.S. state of North Dakota
Map of the United States highlighting North Dakota
North Dakota's location within the U.S.
Coordinates: 46°07′N 101°03′W / 46.11°N 101.05°W / 46.11; -101.05
Country United States
State North Dakota
FoundedSeptember 3, 1914 (created)
September 12, 1914 (organized)
Named forSioux people
SeatFort Yates
Largest communityCannon Ball
Area
 • Total1,128 sq mi (2,920 km2)
 • Land1,094 sq mi (2,830 km2)
 • Water34 sq mi (90 km2)  3.0%
Population
 (2020)
 • Total3,898
 • Estimate 
(2022)
3,711 Decrease
 • Density3.5/sq mi (1.3/km2)
Time zones
(eastern portion)UTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
(western portion)UTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional districtAt-large

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.[1] Its eastern border is the Missouri River and its county seat is Fort Yates.[2]

  1. ^ "State & County QuickFacts". United States Census Bureau. Retrieved April 4, 2023.
  2. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.

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