Editing Sioux County, North Dakota

{{Short description|County in North Dakota, United States}}
{{Use mdy dates|date=April 2019}}
{{Infobox U.S. county
 | county             = Sioux County
 | state              = North Dakota
 | ex image           = Old Sioux County Courthouse (Fort Yates ND).jpg
 | ex image size      = 300px
 | ex image cap       = Postcard. [[Former Sioux County Courthouse (Fort Yates, North Dakota)|Historic Sioux County Courthouse]] at [[Fort Yates, North Dakota]].
 | type               = [[County (United States)|County]]
 | flag               = 
 | seal               = 
 | logo               = 
 | coordinates        = {{coord|46|06|38.225|N|101|03|40.622|W|region:US-ND_type:county|display=inline}}
 | founded            = September 3, 1914 (created)<br />September 12, 1914 (organized)
 | named for          = [[Sioux|Sioux people]]
 | seat wl            = Fort Yates
 | largest city wl    = Cannon Ball
 | city type          = community
 | area_total_sq_mi   = 1128.203
 | area_land_sq_mi    = 1094.052
 | area_water_sq_mi   = 34.151
 | area percentage    = 3.03%
 | population_as_of   = 2020
 | population_total   = 3898
 | pop_est_as_of      = 2024
 | population_est     = 3713 {{decrease}}
 | density_sq_mi      = 3.393
 | time zone 1        = Central
 | tz note 1          = (eastern portion)
 | time zone 2        = Mountain
 | tz note 2          = (western portion)
 | district           = At-large
 | website            = 
}}

'''Sioux County''' is a [[County (United States)|county]] located along the southern border of the [[U.S. state]] of [[North Dakota]]. As of the [[2020 United States census|2020 census]], the population was 3,898,<ref name="2020 Census (City)">{{cite web|title=Explore Census Data |url=https://data.census.gov/profile/Sioux_County,_North_Dakota?g=050XX00US38085 |publisher=[[United States Census Bureau]] |access-date=March 28, 2025}}</ref> and was estimated to be 3,713 in 2024.<ref name="QF"/> Its eastern border is the [[Missouri River]] and its [[county seat]] is [[Fort Yates, North Dakota|Fort Yates]].<ref>{{cite web|title=Find a County |url=https://ce.naco.org/?find=true |publisher=[[National Association of Counties]] |access-date=March 28, 2025}}</ref>

==History==
The county was created by proclamation of [[List of Governors of North Dakota|Governor]] [[L. B. Hanna|Louis B. Hanna]] on September 3, 1914. It was named for the [[Sioux|Native American]] [[Lakota people|Lakota]], whose historic territory included this area. The county government organization was completed on September 12 of that year.<ref>{{cite web|title=Dakota Territory, South Dakota, and North Dakota: Individual County Chronologies |url=http://publications.newberry.org/ahcbp/documents/DAKs_Individual_County_Chronologies.htm |work=Dakota Territory Atlas of Historical County Boundaries |publisher=The [[Newberry Library]] |date=2006 |access-date=February 22, 2019 |archive-url=https://web.archive.org/web/20180402202102/http://publications.newberry.org/ahcbp/documents/DAKs_Individual_County_Chronologies.htm |url-status=dead |archive-date=April 2, 2018}}</ref> The county lies entirely within the [[Standing Rock Sioux 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, North Dakota|Bismarck]], ND [[Bismarck–Mandan|Metropolitan Statistical Area]].

==Geography==
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 (North Dakota)|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.<ref name="SCND">{{Cite web|title=Sioux County · North Dakota |url=https://www.google.com/maps/place/Sioux+County,+ND/@46.0636623,-101.1048188,45979m/data=!3m1!1e3!4m5!3m4!1s0x52d62ad641eaa293:0x37b5b547f4bd3ed9!8m2!3d46.0512004!4d-101.1175392 |access-date=April 27, 2024 |website=Google Maps |language=en}}</ref> The terrain slopes to the east and south; its highest point is on the west line, near the southwestern corner of the county, at {{convert|2,602|ft|m|abbr=on}} ASL.<ref>{{Cite web|title="Find an Altitude/Sioux County ND" Google Maps (accessed February 22, 2019) |url=https://www.daftlogic.com/sandbox-google-maps-find-altitude.htm |access-date=February 22, 2019 |archive-url=https://web.archive.org/web/20190521043409/https://www.daftlogic.com/sandbox-google-maps-find-altitude.htm |archive-date=May 21, 2019 |url-status=dead}}</ref>

According to the [[United States Census Bureau]], the county has a total area of {{convert|1128.203|sqmi}}, of which {{convert|1094.052|sqmi}} is land and {{convert|34.151|sqmi}} (3.03%) is water.<ref>{{Cite web|title=2024 County Gazetteer Files – North Dakota|url=https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_gaz_counties_38.txt|publisher=[[United States Census Bureau]]|access-date=March 28, 2025}}</ref> It is the 34th largest county in North Dakota by total area.

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

===Major highways===
{{div col|colwidth=25em}}
* [[Image:ND-6 (2015).svg|25px]] [[North Dakota Highway 6]]
* [[Image:ND-24 (2015).svg|25px]] [[North Dakota Highway 24]]
* [[Image:ND-31 (2015).svg|25px]] [[North Dakota Highway 31]]
* [[Image:ND-49 (2015).svg|25px]] [[North Dakota Highway 49]]
* [[Image:ND-1806 (2015).svg|25px]] [[North Dakota Highway 1806]]
{{div col end}}

===Adjacent counties===
{{div col|colwidth=25em}}
* [[Morton County, North Dakota|Morton County]] - north (observes [[Central Time Zone|Central Time]])
* [[Emmons County, North Dakota|Emmons County]] - east (observes Central Time)
* [[Corson County, South Dakota]] - south (observes [[Mountain Time Zone|Mountain Time]])
* [[Adams County, North Dakota|Adams County]] - west (observes Mountain Time)
* [[Grant County, North Dakota|Grant County]] - northwest (observes Mountain Time)
{{div col end}}

===Protected areas<ref name=SCND/>===
* [[Cedar River National Grassland]] (part)
* Froelich Dam State Game Management Area

==Demographics==
{{US Census population
|1920= 3308
|1930= 4687
|1940= 4419
|1950= 3696
|1960= 3662
|1970= 3632
|1980= 3620
|1990= 3761
|2000= 4044
|2010= 4153
|2020= 3898
|estyear=2024
|estimate=3713
|estref=<ref name="USCensusEst2024">{{cite web|title=County Population Totals and Components of Change: 2020-2024 |url=https://www.census.gov/data/tables/time-series/demo/popest/2020s-counties-total.html |access-date=March 28, 2025}}</ref>
|align-fn=center
|footnote=U.S. Decennial Census<ref>{{cite web|title=U.S. Decennial Census |url=https://www.census.gov/programs-surveys/decennial-census.html |publisher=United States Census Bureau |access-date=July 20, 2014}}</ref><br>1790–1960<ref>{{cite web|title=Historical Census Browser |url=http://mapserver.lib.virginia.edu |publisher=University of Virginia Library |url-status=live |date=2007 |access-date=July 20, 2014 |archive-url=https://web.archive.org/web/20091212224028/http://mapserver.lib.virginia.edu/ |archive-date=December 12, 2009}}</ref> 1900–1990<ref>{{cite web|last=Forstall |first=Richard L. |title=Population of Counties by Decennial Census: 1900 to 1990 |url=https://www.census.gov/population/cencounts/nd190090.txt |publisher=United States Census Bureau |url-status=live |date=April 20, 1995 |access-date=July 20, 2014 |archive-url=https://web.archive.org/web/19990219135447/http://www.census.gov/population/cencounts/nd190090.txt |archive-date=February 19, 1999}}</ref><br>1990–2000<ref>{{cite web|title=Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000 |url=https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |url-status=live |publisher=United States Census Bureau |access-date=July 20, 2014 |archive-url=https://web.archive.org/web/20100327165705/http://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |archive-date=March 27, 2010}}</ref> 2010–2020<ref name="QF"/>
}}

As of the third quarter of 2024, the median home value in Sioux County was $92,670.<ref>{{Cite web|title=County Median Home Price|url=https://www.nar.realtor/research-and-statistics/housing-statistics/county-median-home-prices-and-monthly-mortgage-payment|publisher=[[National Association of Realtors]]|access-date=March 28, 2025}}</ref>

As of the 2023 [[American Community Survey]], there are 1,067 estimated households in Sioux County with an average of 3.50 persons per household. The county has a median household income of $41,676. Approximately 34.9% of the county's population lives at or below the [[Poverty in the United States|poverty line]]. Sioux County has an estimated 50.9% employment rate, with 11.2% of the population holding a bachelor's degree or higher and 86.9% holding a high school diploma.<ref name="QF">{{Cite web|title=U.S. Census Bureau QuickFacts: Sioux County, North Dakota |url=https://www.census.gov/quickfacts/fact/table/siouxcountynorthdakota/PST045224 |access-date=March 28, 2025 |website=www.census.gov |language=en}}</ref>

The top five reported ancestries (people were allowed to report up to two ancestries, thus the figures will generally add to more than 100%) were English (92.7%), Spanish (0.3%), Indo-European (0.2%), Asian and Pacific Islander (0.0%), and Other (6.7%).

The median age in the county was 28.7 years.

'''Sioux County, North Dakota – racial and ethnic composition'''<br><small>{{nobold|''Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.''}}</small>
{| class="wikitable sortable collapsible" style="font-size: 95%;"
|-
! Race / ethnicity <small>(''NH = non-Hispanic'')</small>
! Pop. 1980<ref name=1980CensusScope>{{Cite web|title=Sioux County, North Dakota — Population by Race |url=https://censusscope.org/us/s38/c85/chart_race.html |publisher=CensusScope |access-date=March 28, 2025}}</ref> !! Pop. 1990<ref name=1990CensusScope>{{Cite web|title=Sioux County, North Dakota — Population by Race |url=https://censusscope.org/us/s38/c85/chart_race.html |publisher=CensusScope |access-date=March 28, 2025}}</ref> !! Pop. 2000<ref name=2000CensusP004>{{Cite web|title=P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – Sioux County, North Dakota |url=https://data.census.gov/table/DECENNIALSF12000.P004?g=050XX00US38085 |publisher=[[United States Census Bureau]] |access-date=March 28, 2025}}</ref> !! Pop. 2010<ref name=2010CensusP2>{{Cite web|title=P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – Sioux County, North Dakota |url=https://data.census.gov/table?q=p2&g=050XX00US38085&tid=DECENNIALPL2010.P2 |publisher=[[United States Census Bureau]] |access-date=March 28, 2025}}</ref> !! {{partial|Pop. 2020}}<ref name=2020CensusP2>{{Cite web|title=P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) – Sioux County, North Dakota |url=https://data.census.gov/cedsci/table?q=p2&g=050XX00US38085&tid=DECENNIALPL2020.P2 |publisher=[[United States Census Bureau]] |access-date=March 28, 2025}}</ref>
|-
| [[Non-Hispanic or Latino whites|White]] alone (NH)
| 1,265<br>(34.94%) || 905<br>(24.06%) || 577<br>(14.27%) || 517<br>(12.45%) || style='background: #ffffe6; |401<br>(10.29%)
|-
| [[Non-Hispanic or Latino African Americans|Black or African American]] alone (NH)
| 0<br>(0.00%) || 3<br>(0.08%) || 1<br>(0.02%) || 6<br>(0.14%) || style='background: #ffffe6; |3<br>(0.08%)
|- style='background: #F4A460;
| '''[[Native Americans in the United States|Native American]] or [[Alaska Native]] alone (NH)'''
| '''2,329<br>(64.34%)''' || '''2,812<br>(74.77%)''' || '''3,365<br>(83.21%)''' || '''3,433<br>(82.66%)''' || '''3,281<br>(84.17%)'''
|-
| [[Asian Americans|Asian]] alone (NH)
| 5<br>(0.14%) || 12<br>(0.32%) || 1<br>(0.02%) || 4<br>(0.10%) || style='background: #ffffe6; |2<br>(0.05%)
|-
| [[Pacific Islander Americans|Pacific Islander]] alone (NH)
| — || — || 2<br>(0.05%) || 0<br>(0.00%) || style='background: #ffffe6; |0<br>(0.00%)
|-
| [[Race and ethnicity in the United States census|Other race]] alone (NH)
| 0<br>(0.00%) || 0<br>(0.00%) || 0<br>(0.00%) || 0<br>(0.00%) || style='background: #ffffe6; |0<br>(0.00%)
|-
| [[Multiracial Americans|Mixed race or multiracial]] (NH)
| — || — || 33<br>(0.82%) || 111<br>(2.67%) || style='background: #ffffe6; |148<br>(3.80%)
|-
| [[Hispanic and Latino Americans|Hispanic or Latino]] (any race)
| 21<br>(0.58%) || 29<br>(0.77%) || 65<br>(1.61%) || 82<br>(1.97%) || style='background: #ffffe6; |63<br>(1.62%)
|-
| '''Total'''
| '''3,620<br>(100.00%)''' || '''3,761<br>(100.00%)''' || '''4,044<br>(100.00%)''' || '''4,153<br>(100.00%)''' || style='background: #ffffe6; |'''3,898<br>(100.00%)'''
|}

===2020 census===
As of the [[2020 United States census|2020 census]], there were 3,898 people, 1,103 households, and 791 families residing in the county.<ref>{{Cite web|title=US Census Bureau, Table P16: Household Type |url=https://data.census.gov/table?q=Sioux%20County,%20North%20Dakota%20p16&y=2020 |access-date=March 28, 2025 |publisher=United States Census Bureau}}</ref> The [[population density]] was {{convert|3.6|PD/sqmi|PD/km2|1}}. There were 1,277 housing units at an average density of {{convert|1.2|/sqmi|/km2|1}}. The racial makeup of the county was 10.29% [[White (U.S. Census)|White]], 0.08% [[African American (U.S. Census)|African American]], '''{{font color|#8B4513|85.48%}}''' '''[[Native American (U.S. Census)|{{font color|#8B4513|Native American}}]]''', 0.05% [[Asian (U.S. Census)|Asian]], 0.00% [[Race (U.S. Census)|Pacific Islander]], 0.13% from some other races and 3.98% from two or more races. [[Hispanic and Latino Americans|Hispanic or Latino]] people of any race were 1.97% of the population.<ref>{{Cite web|title=How many people live in Sioux County, North Dakota |url=https://data.usatoday.com/census/total-population/total-population-change/sioux-county-north-dakota/050-38085/ |access-date=March 28, 2025 |publisher=USA Today}}</ref>

===2010 census===
As of the [[2010 United States census|2010 census]], there were 4,153 people, 1,158 households, and 900 families in the county. The population density was {{convert|3.8|PD/sqmi|PD/km2|1}}. There were 1,311 housing units at an average density of {{convert|1.2|/sqmi|/km2|1}}. The racial makeup of the county was 12.64% [[White (U.S. Census)|White]], 0.17% [[African American (U.S. Census)|African American]], '''{{font color|#8B4513|84.08%}}''' '''[[Native American (U.S. Census)|{{font color|#8B4513|Native American}}]]''', 0.10% [[Asian (U.S. Census)|Asian]], 0.05% [[Race (U.S. Census)|Pacific Islander]], 0.10% from some other races and 2.87% from two or more races. [[Hispanic and Latino Americans|Hispanic or Latino]] people of any race were 1.61% of the population. In terms of ancestry, 13.5% were [[Germans|German]], and 0.3% were [[Americans|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 threshold|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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  bar:1930 from: 0 till:4687
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  bar:1970 from: 0 till:3632
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==Communities==
===Cities===
* [[Fort Yates, North Dakota|Fort Yates]] (county seat)
* [[Selfridge, North Dakota|Selfridge]]
* [[Solen, North Dakota|Solen]]

===Census-designated places===
* [[Cannon Ball, North Dakota|Cannon Ball]]
* [[Porcupine, North Dakota|Porcupine]]

===Township===
* Menz

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

{{PresHead|place=Sioux County, North Dakota|whig=no|source1=<ref name=leip>{{cite web|url=http://uselectionatlas.org/RESULTS|title=Atlas of US Presidential Elections|last=Leip|first=David|website=uselectionatlas.org|access-date=November 10, 2024}}</ref>}}
<!-- PresRow should be {{PresRow|Year|Winning party|GOP/Whig vote #|Dem vote #|3rd party vote #|State}} -->
{{PresRow|2024|Democratic|285|654|14|North Dakota}}
{{PresRow|2020|Democratic|258|804|124|North Dakota}}
{{PresRow|2016|Democratic|260|758|214|North Dakota}}
{{PresRow|2012|Democratic|225|900|19|North Dakota}}
{{PresRow|2008|Democratic|215|1,145|18|North Dakota}}
{{PresRow|2004|Democratic|319|804|17|North Dakota}}
{{PresRow|2000|Democratic|269|724|48|North Dakota}}
{{PresRow|1996|Democratic|207|393|90|North Dakota}}
{{PresRow|1992|Democratic|264|463|257|North Dakota}}
{{PresRow|1988|Democratic|325|701|16|North Dakota}}
{{PresRow|1984|Democratic|442|655|21|North Dakota}}
{{PresRow|1980|Republican|620|383|87|North Dakota}}
{{PresRow|1976|Democratic|354|697|30|North Dakota}}
{{PresRow|1972|Republican|561|557|24|North Dakota}}
{{PresRow|1968|Democratic|482|525|58|North Dakota}}
{{PresRow|1964|Democratic|314|695|4|North Dakota}}
{{PresRow|1960|Democratic|571|688|0|North Dakota}}
{{PresRow|1956|Republican|718|476|3|North Dakota}}
{{PresRow|1952|Republican|968|336|18|North Dakota}}
{{PresRow|1948|Republican|667|465|34|North Dakota}}
{{PresRow|1944|Republican|673|445|4|North Dakota}}
{{PresRow|1940|Republican|1,167|578|1|North Dakota}}
{{PresRow|1936|Democratic|585|877|202|North Dakota}}
{{PresRow|1932|Democratic|350|1,328|44|North Dakota}}
{{PresRow|1928|Democratic|687|988|23|North Dakota}}
{{PresRow|1924|Republican|777|58|414|North Dakota}}
{{PresRow|1920|Republican|776|163|22|North Dakota}}
{{PresFoot|1916|Republican|232|200|31|North Dakota}}

==Education==
School districts include:<ref>{{cite web|title=2020 Census - School District Reference Map: Sioux County, ND |url=https://www2.census.gov/geo/maps/DC2020/PL20/st38_nd/schooldistrict_maps/c38085_sioux/DC20SD_C38085.pdf |publisher=[[United States Census Bureau]] |access-date=July 24, 2022 |url-status=live |archive-url=https://web.archive.org/web/20210813162659/https://www2.census.gov/geo/maps/DC2020/PL20/st38_nd/schooldistrict_maps/c38085_sioux/DC20SD_C38085.pdf |archive-date=August 13, 2021}} - [https://www2.census.gov/geo/maps/DC2020/PL20/st38_nd/schooldistrict_maps/c38085_sioux/DC20SD_C38085_SD2MS.txt Text list]</ref>
* [[Fort Yates Public School District 4]] (in cooperation with the Standing Rock [[Bureau of Indian Education]] (BIE) grant school)
* [[Selfridge Public School District 8]]
* [[Solen Public School District 3]]

==See also==
* [[National Register of Historic Places listings in North Dakota#Sioux County|National Register of Historic Places listings in Sioux County, North Dakota]]

==References==
{{Reflist|30em}}

==External links==
* Sioux County maps, [https://www.dot.nd.gov/docs/maps/base-maps/counties/sioux_sheet1.pdf Sheet 1] (eastern) and [https://www.dot.nd.gov/docs/maps/base-maps/counties/sioux_sheet2.pdf Sheet 2] (western), ''North Dakota DOT''

{{Geographic Location
|Centre    = Sioux County, North Dakota
|North     = [[Morton County, North Dakota|Morton County]]
|East      = [[Emmons County, North Dakota|Emmons County]]
|South     = [[Corson County, South Dakota]]
|West      = [[Adams County, North Dakota|Adams County]]
|Northwest = [[Grant County, North Dakota|Grant County]]
}}

{{Sioux County, North Dakota}}
{{North Dakota}}
{{Authority control}}

[[Category:Sioux County, North Dakota| ]]
[[Category:North Dakota counties on the Missouri River]]
[[Category:North Dakota placenames of Native American origin]]
[[Category:1914 establishments in North Dakota]]
[[Category:Populated places established in 1914]]
[[Category:Counties in multiple time zones]]