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Sioux County, Iowa

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County in Iowa, United States

County in Iowa
Sioux County
County
Sioux County CourthouseSioux County Courthouse
Map of Iowa highlighting Sioux CountyLocation within the U.S. state of Iowa
Map of the United States highlighting IowaIowa's location within the U.S.
Coordinates: 43°04′53″N 96°10′46″W / 43.0814°N 96.1794°W / 43.0814; -96.1794
Country United States
State Iowa
Founded1851
Named forSioux people
SeatOrange City
Largest citySioux Center
Area
 • Total769 sq mi (1,990 km)
 • Land768 sq mi (1,990 km)
 • Water0.7 sq mi (2 km)  0.09%
Population
 • Total35,872
 • Density47/sq mi (18/km)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district4th
Websitesiouxcountyia.gov

Sioux County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 35,872. Its county seat is Orange City. Its largest city is Sioux Center.

History

Sioux County was formed on January 15, 1851. It has been self-governed since January 20, 1860. It was named after the Sioux tribe.

The first county seat was Calliope in 1860, then a small village with 15 inhabitants, and now part of Hawarden. The first courthouse was built here in 1860 and served as such until 1872. A larger immigration wave began in 1869, primarily of Dutch. In 1872, Orange City was declared the seat. In June 1902, the construction began on a new Sioux County courthouse designed by W.W. Beach. Of red sandstone, it was completed in 1904, and still serves as the courthouse. From 1976 until 1982 the building was completely restored, and in 1977, it was listed on the National Register of Historic Places.

Geography

According to the U.S. Census Bureau, the county has a total area of 769 square miles (1,990 km), of which 768 square miles (1,990 km) is land and 0.7 square miles (1.8 km) (0.09%) is water.

Western Sioux County drains to the south west to the Rock River or the Big Sioux River. Eastern Sioux County drains to the south east to the Floyd River.

Major highways

Adjacent counties

Demographics

Historical population
CensusPop.Note%±
186010—
18705765,660.0%
18805,426842.0%
189018,370238.6%
190023,33727.0%
191025,2488.2%
192026,4584.8%
193026,8061.3%
194027,2091.5%
195026,381−3.0%
196026,3750.0%
197027,9966.1%
198030,81310.1%
199029,903−3.0%
200031,5895.6%
201033,7046.7%
202035,8726.4%
2023 (est.)36,2461.0%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2018
Population of Sioux County from US census data

2020 census

2022 US Census population pyramid for Sioux County from ACS 5-year estimates

The 2020 census recorded a population of 35,872 in the county, with a population density of 46.6875/sq mi (18.02614/km). 93.74% of the population reported being of one race. There were 13,000 housing units, of which 12,202 were occupied.

Sioux County Racial Composition
Race Num. Perc.
White (NH) 29,919 83.4%
Black or African American (NH) 184 0.51%
Native American (NH) 87 0.24%
Asian (NH) 219 0.61%
Pacific Islander (NH) 5 0.01%
Other/Mixed (NH) 544 1.52%
Hispanic or Latino 4,914 13.7%

2010 census

The 2010 census recorded a population of 33,704 in the county, with a population density of 43.8923/sq mi (16.9469/km). There were 12,279 housing units, of which 11,584 were occupied.

2000 census

As of the census of 2000, there were 31,589 people, 10,693 households, and 8,062 families residing in the county. The population density was 41 people per square mile (16 people/km). There were 11,260 housing units at an average density of 15 units per square mile (5.8 units/km). The racial makeup of the county was 97.33% White, 0.20% Black or African American, 0.13% Native American, 0.59% Asian, 0.01% Pacific Islander, 1.20% from other races, and 0.53% from two or more races. 2.56% of the population were Hispanic or Latino of any race.

There were 10,693 households, out of which 36.80% had children under the age of 18 living with them, 69.40% were married couples living together, 4.20% had a female householder with no husband present, and 24.60% were non-families. 22.20% of all households were made up of individuals, and 11.40% had someone living alone who was 65 years of age or older. The average household size was 2.71 and the average family size was 3.19.

In the county, the population was spread out, with 27.10% under the age of 18, 15.20% from 18 to 24, 23.50% from 25 to 44, 19.10% from 45 to 64, and 15.00% who were 65 years of age or older. The median age was 33 years. For every 100 females there were 96.30 males. For every 100 females age 18 and over, there were 93.50 males.

The median income for a household in the county was $40,536, and the median income for a family was $45,846. Males had a median income of $31,548 versus $19,963 for females. The per capita income for the county was $16,532. About 4.60% of families and 6.40% of the population were below the poverty line, including 7.90% of those under age 18 and 6.80% of those age 65 or over.

At one time divorce was relatively uncommon. In 1980, 52 married people in the county existed per divorced person; this rate did not exist in the total United States since the 1930s. As of 2011, this changed to 14 married persons per divorced person.

Religion

As of 2011, 80% of the county residents belong to major denominational churches, compared to 36% of the total U.S. population.

Education

Sioux County is the home to two four-year liberal arts colleges; Northwestern College in Orange City and Dordt University in Sioux Center. Both of these schools have enrollments over 1,000. Northwest Iowa Community College is also in Sioux County, though it is most often associated with the community of Sheldon in O'Brien County.

Politics

Sioux County is overwhelmingly Republican in Presidential elections. The only Democratic presidential nominee to ever carry Sioux County since the Civil War has been Franklin D. Roosevelt, who did so in 1932 and 1936; however, Theodore Roosevelt won the county as a Progressive in 1912 and George B. McClellan carried the county in the wartime 1864 election. The Democrats have only garnered 40 percent of the county's vote once since Roosevelt. Further underlining the county's heavy Republican bent, in 1964 it was one of only seven counties in the state to support Barry Goldwater, who easily carried the county with almost 66 percent of the vote–a near-reversal of Lyndon Johnson's statewide margin. In addition, in 2008, when Barack Obama carried Iowa by 9.5 points, Sioux County was his weakest of all 99 counties in the state, with John McCain winning the county by 62 points. By 2020, the county at 66.5 point margin was Joe Biden's second-weakest county in Iowa, being overtaken by almost as equally Republican neighboring Lyon County at 67.5 points.

In 1992, Sioux County was one of only two counties in the nation, along with Jackson County, Kentucky, to give George H. W. Bush over seventy percent of its vote. In the six elections since then, the Republican candidates has never received less than 75 percent of the county's vote. It is located in what was, until 2013, Iowa's 5th congressional district which had a Cook Partisan Voting Index of R+9 and was represented by Republican Steve King. King won the seat in Iowa's new 4th congressional district in the 2012 election with 53% of the district's vote, and with 83% of Sioux County votes going for King.

United States presidential election results for Sioux County, Iowa
Year Republican Democratic Third party(ies)
No.  % No.  % No.  %
2024 16,053 84.49% 2,626 13.82% 322 1.69%
2020 15,680 82.31% 3,019 15.85% 352 1.85%
2016 14,785 81.26% 2,300 12.64% 1,109 6.10%
2012 14,407 83.24% 2,700 15.60% 201 1.16%
2008 13,490 80.95% 3,030 18.18% 145 0.87%
2004 14,229 85.87% 2,259 13.63% 82 0.49%
2000 12,241 83.32% 2,148 14.62% 303 2.06%
1996 10,864 77.00% 2,392 16.95% 854 6.05%
1992 10,637 72.21% 2,226 15.11% 1,867 12.67%
1988 10,270 77.29% 2,923 22.00% 95 0.71%
1984 11,665 81.61% 2,585 18.09% 43 0.30%
1980 10,768 76.01% 2,698 19.04% 701 4.95%
1976 9,448 73.04% 3,322 25.68% 165 1.28%
1972 10,721 78.27% 2,867 20.93% 109 0.80%
1968 10,010 80.04% 2,181 17.44% 316 2.53%
1964 8,078 65.55% 4,233 34.35% 12 0.10%
1960 10,284 79.51% 2,643 20.43% 7 0.05%
1956 9,651 78.29% 2,666 21.63% 11 0.09%
1952 10,275 83.21% 2,050 16.60% 24 0.19%
1948 5,597 57.11% 4,042 41.24% 162 1.65%
1944 6,552 65.92% 3,369 33.89% 19 0.19%
1940 7,585 64.55% 4,144 35.27% 21 0.18%
1936 4,543 42.58% 5,553 52.05% 573 5.37%
1932 3,943 38.65% 6,170 60.48% 89 0.87%
1928 6,378 68.97% 2,839 30.70% 31 0.34%
1924 4,960 58.91% 900 10.69% 2,560 30.40%
1920 6,068 79.29% 1,510 19.73% 75 0.98%
1916 2,261 51.89% 2,049 47.03% 47 1.08%
1912 575 12.33% 1,453 31.15% 2,636 56.52%
1908 2,697 58.10% 1,891 40.74% 54 1.16%
1904 2,992 70.83% 1,151 27.25% 81 1.92%
1900 3,025 61.70% 1,809 36.90% 69 1.41%
1896 2,841 59.02% 1,898 39.43% 75 1.56%

Communities

Cities

Townships

Population ranking

The population ranking of the following table is based on the 2020 census of Sioux County.

† county seat

Rank City/Town/etc. Municipal type Population (2020 Census)
1 Sioux Center City 8,229
2 † Orange City City 6,267
3 Rock Valley City 4,059
4 Hawarden City 2,700
5 Hull City 2,384
6 Alton City 1,248
7 Hospers City 718
8 Boyden City 701
9 Ireton City 590
10 Granville City 310
11 Maurice City 265
12 Sheldon (mostly in O'Brien) City 261 (5,512 total)
13 Chatsworth City 75
14 Matlock City 74

Notable people

See also

References

  1. ^ "2020 Census State Redistricting Data". census.gov. United states Census Bureau. Retrieved August 12, 2021.
  2. "Find a County". National Association of Counties. Retrieved June 7, 2011.
  3. Chicago and North Western Railway Company (1908). A History of the Origin of the Place Names Connected with the Chicago & North Western and Chicago, St. Paul, Minneapolis & Omaha Railways. p. 163.
  4. "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. February 12, 2011. Retrieved April 23, 2011.
  5. "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023". United States Census Bureau. Retrieved April 2, 2024.
  6. "U.S. Decennial Census". United States Census Bureau. Retrieved July 20, 2014.
  7. "Historical Census Browser". University of Virginia Library. Retrieved July 20, 2014.
  8. "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 20, 2014.
  9. "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Archived (PDF) from the original on March 27, 2010. Retrieved July 20, 2014.
  10. "State & County QuickFacts". United States Census Bureau. Archived from the original on June 7, 2011. Retrieved July 20, 2014.
  11. "P2 HISPANIC OR LATINO, AND NOT HISPANIC OR LATINO BY RACE – 2020: DEC Redistricting Data (PL 94-171) – Sioux County, Iowa".
  12. "Population and Housing Occupancy Status: 2010 - State – County". United States Census Bureau American FactFinder. Archived from the original on September 29, 2015. Retrieved March 26, 2011.
  13. "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
  14. ^ Tavernise, Sabrina; Gebeloff, Robert (March 23, 2011). "Once Rare in Rural America, Divorce Is Changing the Face of Its Families". New York Times. Retrieved March 24, 2011.
  15. David Leip’s Presidential Atlas (Maps for Iowa by election)
  16. Geographie Electorale
  17. "2008 Presidential General Election Results - Iowa".
  18. "2020 Presidential General Election Results - Iowa".
  19. David Leip’s Presidential Atlas: 1992 Presidential election statistics
  20. The New York Times electoral map (Zoom in on Iowa)
  21. Hayworth, Bret (November 6, 2012). "King wins sixth term in House". Sioux City Journal. Retrieved January 7, 2013.
  22. "Iowa 4th District Congressional Election Results, by County". 2012 General Election Results. Iowa Secretary of State. Archived from the original on November 7, 2012. Retrieved January 7, 2013.
  23. Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved April 28, 2018.

External links

Places adjacent to Sioux County, Iowa
Lincoln County, South Dakota Lyon County
Sioux County, Iowa O'Brien County
Union County, South Dakota Plymouth County
Municipalities and communities of Sioux County, Iowa, United States
County seat: Orange City
Cities
Map of Iowa highlighting Sioux County
Unincorporated
communities
Footnotes‡This populated place also has portions in an adjacent county or counties
State of Iowa
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43°04′53″N 96°10′46″W / 43.08139°N 96.17944°W / 43.08139; -96.17944

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