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Sioux County, North Dakota

Sioux County, North Dakota
Map of North Dakota highlighting Sioux County
Location in the state of North Dakota
Map of the United States highlighting North Dakota
North Dakota's location in the U.S.
Founded September 12, 1914
Named for Sioux people
Seat Fort Yates
Largest community Cannon Ball
 • Total 1,128 sq mi (2,922 km2)
 • Land 1,094 sq mi (2,833 km2)
 • Water 34 sq mi (88 km2), 3.0%
Population (est.)
 • (2014) 4,422
 • Density 3.8/sq mi (1/km²)
Time zones Central: UTC-6/-5
(eastern portion)
Mountain: UTC-7/-6
(western portion)

Sioux County is a

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved November 1, 2013. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ "County History". Official Portal for North Dakota State Government. Retrieved 4 May 2011. 
  4. ^ "Dakota Territory, South Dakota, and North Dakota: Individual County Chronologies". Dakota Territory Atlas of Historical County Boundaries. The Newberry Library. 2006. Retrieved February 1, 2015. 
  5. ^ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved February 1, 2015. 
  6. ^ "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2014". Retrieved June 4, 2015. 
  7. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved February 1, 2015. 
  8. ^ "Historical Census Browser". University of Virginia Library. Retrieved February 1, 2015. 
  9. ^ Forstall, Richard L., ed. (April 20, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved February 1, 2015. 
  10. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Retrieved February 1, 2015. 


See also

Census-designated places

  • Menz




The median income for a household in the county was $22,483, and the median income for a family was $24,000. Males had a median income of $22,039 versus $19,458 for females. The per capita income for the county was $7,731. About 33.60% of families and 39.20% of the population were below the poverty line, including 44.40% of those under age 18 and 25.80% of those age 65 or over. The county's per-capita income makes it one of the poorest counties in the United States.

In the county the population was spread out with 40.30% under the age of 18, 11.10% from 18 to 24, 26.90% from 25 to 44, 16.20% from 45 to 64, and 5.60% who were 65 years of age or older. The median age was 24 years. For every 100 females there were 104.20 males. For every 100 females age 18 and over, there were 99.70 males.

There were 1,095 households out of which 48.90% had children under the age of 18 living with them, 39.10% were married couples living together, 29.10% had a female householder with no husband present, and 20.40% were non-families. 16.60% of all households were made up of individuals and 4.40% had someone living alone who was 65 years of age or older. The average household size was 3.63 and the average family size was 3.98.

As of the census of 2000, there were 4,044 people, 1,095 households, and 871 families residing in the county. The population density was 4 people per square mile (1/km²). There were 1,216 housing units at an average density of 1 per square mile (0/km²). The racial makeup of the county was 84.59% Native American, 14.34% White, 0.02% Black or African American, 0.02% Asian, 0.05% Pacific Islander, 0.07% from other races, and 0.89% from two or more races. 1.61% of the population were Hispanic or Latino of any race. 11.5% were of German ancestry.


National protected area

Adjacent counties

Major highways

According to the U.S. Census Bureau, the county has a total area of 1,128 square miles (2,920 km2), of which 1,094 square miles (2,830 km2) is land and 34 square miles (88 km2) (3.0%) is water.[5]



  • Geography 1
    • Major highways 1.1
    • Adjacent counties 1.2
    • National protected area 1.3
  • Demographics 2
  • Communities 3
    • Cities 3.1
    • Township 3.2
    • Census-designated places 3.3
  • See also 4
  • References 5

Sioux County is included in the Bismarck, ND Metropolitan Statistical Area.

The county lies entirely within the Standing Rock Indian Reservation, forming the northernmost 30 percent of the reservation. (The balance of the reservation is in South Dakota). It is the only county in North Dakota that is entirely within an Indian reservation.


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