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Sioux County, North Dakota

Coordinates: 46°07′N 101°03′W / 46.11°N 101.05°W / 46.11; -101.05
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Sioux County
County
Postcard. Historic Sioux County Courthouse at Fort Yates, North Dakota.
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]

History

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The county was created by proclamation of Governor Louis B. Hanna on September 3, 1914. It was named for the Native American Lakota, whose historic territory included this area. The county government organization was completed on September 12 of that year.[3] 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. From 2013 to 2018, Sioux County was included in the Bismarck, ND Metropolitan Statistical Area.

Geography

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Sioux County lies on the south line of North Dakota. Its south boundary line abuts the north boundary line of the state of South Dakota. Its north boundary line is formed by the east-northeastward-flowing Cedar Creek, which discharges into the Missouri River at the county's northeast corner, and its east boundary line is formed by the south-southeast-flowing Missouri River, which also forms Lake Oahe along the county boundary line. Porcupine Creek flows southeastward into the Missouri River, draining the northeastern part of the county. The county terrain consists of low rolling hills etched with gullies and drainages; the area is mostly devoted to agriculture.[4] The terrain slopes to the east and south; its highest point is on the west line, near the southwestern corner of the county, at 2,602 ft (793 m) ASL.[5] 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.[6]

The southwest corner counties of North Dakota (Adams, Billings, Bowman, Golden Valley, Grant, Hettinger, Slope, and Stark) observe Mountain Time. The counties of McKenzie, Dunn, and Sioux are split, observing Mountain Time in their western portions.

Major highways

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Adjacent counties

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Protected areas[4]

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Demographics

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Historical population
CensusPop.Note%±
19203,308—
19304,68741.7%
19404,419−5.7%
19503,696−16.4%
19603,662−0.9%
19703,632−0.8%
19803,620−0.3%
19903,7613.9%
20004,0447.5%
20104,1532.7%
20203,898−6.1%
2022 (est.)3,711[7]−4.8%
U.S. Decennial Census[8]
1790-1960[9] 1900-1990[10]
1990-2000[11] 2010-2020[1]

2020 census

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As of the census of 2020, there were 3,898 people.

2010 census

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As of the census of 2010, there were 4,153 people, 1,158 households, and 900 families in the county. The population density was 3.8 inhabitants per square mile (1.5/km2). There were 1,311 housing units at an average density of 1.2 per square mile (0.46/km2). The racial makeup of the county was 84.1% American Indian, 12.6% white, 0.2% black or African American, 0.1% Asian, 0.1% from other races, and 2.9% from two or more races. Those of Hispanic or Latino origin made up 2.0% of the population. In terms of ancestry, 13.5% were German, and 0.3% were American.

Of the 1,158 households, 54.1% had children under the age of 18 living with them, 32.5% were married couples living together, 31.6% had a female householder with no husband present, 22.3% were non-families, and 17.4% of all households were made up of individuals. The average household size was 3.55 and the average family size was 3.89. The median age was 26.3 years.

The median income for a household in the county was $30,990 and the median income for a family was $31,098. Males had a median income of $31,894 versus $26,619 for females. The per capita income for the county was $13,542. About 39.0% of families and 47.2% of the population were below the poverty line, including 58.4% of those under age 18 and 36.1% of those age 65 or over.

Population by decade

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Communities

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Cities

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Census-designated places

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Township

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  • Menz

Politics

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With its population being mostly Native American, Sioux County is one of the most consistently Democratic counties in North Dakota, having last backed a Republican presidential candidate in 1980. Since then the closest a Republican has gotten to winning the county was Ronald Reagan in 1984 who lost the county by 19 percent. John Hoeven, in his 2010 election to the Senate, as well as his 2008 reelection as governor, won the county. In 2016, Hillary Clinton won the most votes in Sioux County, one of only two counties she won in the state. Green Party candidate Jill Stein received 10.4% of the popular vote.[12]

United States presidential election results for Sioux County, North Dakota[12]
Year Republican Democratic Third party(ies)
No.  % No.  % No.  %
2024 284 30.02% 651 68.82% 11 1.16%
2020 258 21.75% 804 67.79% 124 10.46%
2016 260 21.10% 758 61.53% 214 17.37%
2012 225 19.67% 900 78.67% 19 1.66%
2008 215 15.60% 1,145 83.09% 18 1.31%
2004 319 27.98% 804 70.53% 17 1.49%
2000 269 25.84% 724 69.55% 48 4.61%
1996 207 30.00% 393 56.96% 90 13.04%
1992 264 26.83% 463 47.05% 257 26.12%
1988 325 31.19% 701 67.27% 16 1.54%
1984 442 39.53% 655 58.59% 21 1.88%
1980 620 56.88% 383 35.14% 87 7.98%
1976 354 32.75% 697 64.48% 30 2.78%
1972 561 49.12% 557 48.77% 24 2.10%
1968 482 45.26% 525 49.30% 58 5.45%
1964 314 31.00% 695 68.61% 4 0.39%
1960 571 45.35% 688 54.65% 0 0.00%
1956 718 59.98% 476 39.77% 3 0.25%
1952 968 73.22% 336 25.42% 18 1.36%
1948 667 57.20% 465 39.88% 34 2.92%
1944 673 59.98% 445 39.66% 4 0.36%
1940 1,167 66.84% 578 33.10% 1 0.06%
1936 585 35.16% 877 52.70% 202 12.14%
1932 350 20.33% 1,328 77.12% 44 2.56%
1928 687 40.46% 988 58.19% 23 1.35%
1924 777 62.21% 58 4.64% 414 33.15%
1920 776 80.75% 163 16.96% 22 2.29%
1916 232 50.11% 200 43.20% 31 6.70%

Education

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School districts include:[13]

See also

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References

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  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved April 4, 2023.
  2. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
  3. ^ "Dakota Territory, South Dakota, and North Dakota: Individual County Chronologies". Dakota Territory Atlas of Historical County Boundaries. The Newberry Library. 2006. Archived from the original on April 2, 2018. Retrieved February 22, 2019.
  4. ^ a b "Sioux County · North Dakota". Google Maps. Retrieved April 27, 2024.
  5. ^ ""Find an Altitude/Sioux County ND" Google Maps (accessed February 22, 2019)". Archived from the original on May 21, 2019. Retrieved February 22, 2019.
  6. ^ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Archived from the original on January 29, 2015. Retrieved February 1, 2015.
  7. ^ "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2022". Retrieved April 4, 2023.
  8. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved February 1, 2015.
  9. ^ "Historical Census Browser". University of Virginia Library. Retrieved February 1, 2015.
  10. ^ Forstall, Richard L., ed. (April 20, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved February 1, 2015.
  11. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Archived (PDF) from the original on March 27, 2010. Retrieved February 1, 2015.
  12. ^ a b Leip, David. "Atlas of US Presidential Elections". uselectionatlas.org. Retrieved November 10, 2024.
  13. ^ "2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: Sioux County, ND" (PDF). United States Census Bureau. Archived (PDF) from the original on August 13, 2021. Retrieved July 24, 2022. - Text list
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  • Sioux County maps, Sheet 1 (eastern) and Sheet 2 (western), North Dakota DOT

46°07′N 101°03′W / 46.11°N 101.05°W / 46.11; -101.05

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