File:Old_Sioux_County_Courthouse_(Fort_Yates_ND).jpg · Wikimedia Commons · See Wikimedia Commons
Sioux County
Sign in to saveAlso known as Sioux County, North Dakota, Sioux County, ND
county in North Dakota, United States
Key facts
- 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
- Total
- 1,128.203 sq mi (2,922.03 km )
- Land
- 1,094.052 sq mi (2,833.58 km )
- Water
- 34.151 sq mi (88.45 km ) 3.03%
- Estimate 2025
- 3,667
- Density
- 3.393/sq mi (1.310/km )
- Eastern portion
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
- Western portion
- UTC−7 ( Mountain )
- Congressional district
- At-large
via Wikipedia infobox
Wikidata facts
- Named after
- Sioux
- Country
- United States
- Located in
- North Dakota
- Contains
- Fort Yates
- Capital
- Fort Yates
- Population
- 3898
- Area
- 2922
- Shares border with
- Adams County
- Image
- Old Sioux County Courthouse (Fort Yates ND).jpg
- Households
- 1107
Show 7 more facts
- topic's main category
- Category:Sioux County, North Dakota
- different from
- Sioux County
- water as percent of area
- 3
- native label
- Sioux County
- Commons category
- Sioux County, North Dakota
- inception
- 1915-00-00
- per capita income
- 17460
Sources (9)
via Wikidata · CC0
~8 min read
Encyclopedic overview
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 3,667 in 2025. Its eastern border is the Missouri River and the county seat is Fort Yates.
History
Excerpted from Wikipedia’s “Sioux County” article, available under the CC BY-SA 4.0 licence.