Dewey County, South Dakota

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This article is about the county in South Dakota. For the unincorporated town of Dewey, South Dakota, in Custer County, see Dewey, South Dakota.
Dewey County
U.S. county
Forest City Bridge
Forest City Bridge
Map of South Dakota highlighting Dewey County
Location within the U.S. state of South Dakota
Map of the United States highlighting South Dakota
South Dakota's location within the U.S.
Coordinates: 45°10′N 100°53′W / 45.16°N 100.88°W / 45.16; -100.88
Country United States
State South Dakota
Founded1883 (created)
1910 (organized)
Named forWilliam P. Dewey
SeatTimber Lake
Largest communityNorth Eagle Butte
Area
 • Total2,445 sq mi (6,330 km2)
 • Land2,302 sq mi (5,960 km2)
 • Water143 sq mi (370 km2)  5.8%
Population
 (2020)
 • Total5,239
 • Density2.1/sq mi (0.83/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional districtAt-large

Dewey County is a county in the U.S. state of South Dakota. As of the 2020 United States Census, the population was 5,239.[1] Its county seat is Timber Lake.[2] The county was created in 1883 and organized in 1910.[3] It was named for William P. Dewey,[4] Territorial surveyor-general from 1873 to 1877.

Almost the entire county lies in the Cheyenne River Indian Reservation. The balance of the county, along its extreme northern county line, lies in the Standing Rock Indian Reservation. It is one of five South Dakota counties that are contained within Indian reservations.

Geography[]

The Moreau River flows east-northeasterly through the upper central parts of Dewey County, discharging into the Missouri River near the county's NE corner. Smaller drainages move runoff water northward from the central-eastern portions to the Missouri River, discharging near the community of Promise. A significant arm of the Missouri River forms the county's southeastern border. The county terrain consists of rolling hills, sloping southeastward and dropping off into the Missouri River basin.[5]

The county has a total area of 2,445 square miles (6,330 km2), of which 2,302 square miles (5,960 km2) is land and 143 square miles (370 km2) (5.8%) is water.[6]

The eastern portion of South Dakota's counties (48 of 66) observe Central Time; the western counties (18 of 66) observe Mountain Time. Dewey County is the easternmost of the SD counties to observe Mountain Time.[7]

Major highways[]

Adjacent counties[]

Protected Areas[]

  • Firesteel Dam State Game Production Area
  • Isabel Lake State Game Production Area
  • Little Moreau State Game Production Area
  • Little Moreau State Recreation Area

Lakes[]

  • Lake Isabel
  • Lake Oahe (partial)
  • Little Moreau Lake

Demographics[]

Historical population
Census Pop. %±
19101,145—
19204,802319.4%
19306,47634.9%
19405,709−11.8%
19504,916−13.9%
19605,2576.9%
19705,170−1.7%
19805,3663.8%
19905,5232.9%
20005,9728.1%
20105,301−11.2%
20205,239−1.2%
US Decennial Census[8]
1790-1960[9] 1900-1990[10]
1990-2000[11] 2010-2020[1]

2000 census[]

As of the 2000 United States Census,[12] there were 5,972 people, 1,863 households, and 1,386 families in the county. The population density was 3 people per square mile (1/km2). There were 2,133 housing units at an average density of 0.9 per square mile (0.4/km2). The racial makeup of the county was 74.16% Native American, 24.15% White, 0.03% Black or African American, 0.12% Asian, 0.05% Pacific Islander, 0.07% from other races, and 1.42% from two or more races. 0.85% of the population were Hispanic or Latino of any race. 14.2% were of German ancestry. 84.6% spoke English and 14.4% Dakota as their first language.

There were 1,863 households, out of which 43.70% had children under the age of 18 living with them, 42.90% were married couples living together, 22.30% had a female householder with no husband present, and 25.60% were non-families. 22.10% of all households were made up of individuals, and 8.90% had someone living alone who was 65 years of age or older. The average household size was 3.15 and the average family size was 3.66.

The county population contained 38.90% under the age of 18, 9.00% from 18 to 24, 27.20% from 25 to 44, 16.60% from 45 to 64, and 8.30% who were 65 years of age or older. The median age was 26 years. For every 100 females there were 95.90 males. For every 100 females age 18 and over, there were 95.00 males.

The median income for a household in the county was $23,272, and the median income for a family was $24,917. Males had a median income of $21,522 versus $18,777 for females. The per capita income for the county was $9,251. About 29.80% of families and 33.60% of the population were below the poverty line, including 37.70% of those under age 18 and 28.50% of those age 65 or over. The county's per-capita income makes it one of the poorest counties in the United States.

2010 census[]

As of the 2010 United States Census, there were 5,301 people, 1,730 households, and 1,239 families in the county.[13] The population density was 2.3 inhabitants per square mile (0.89/km2). There were 2,002 housing units at an average density of 0.9 per square mile (0.35/km2).[14] The racial makeup of the county was 74.9% American Indian, 21.0% white, 0.2% Asian, 0.1% black or African American, 0.2% from other races, and 3.6% from two or more races. Those of Hispanic or Latino origin made up 1.8% of the population.[13] In terms of ancestry, 13.2% were German, 6.5% were Irish, and 0.6% were American.[15]

Of the 1,730 households, 45.9% had children under the age of 18 living with them, 37.6% were married couples living together, 24.2% had a female householder with no husband present, 28.4% were non-families, and 24.6% of all households were made up of individuals. The average household size was 3.05 and the average family size was 3.60. The median age was 30.0 years.[13]

The median income for a household in the county was $33,255 and the median income for a family was $40,500. Males had a median income of $33,942 versus $28,594 for females. The per capita income for the county was $15,632. About 20.5% of families and 30.5% of the population were below the poverty line, including 39.5% of those under age 18 and 13.5% of those age 65 or over.[16]

Communities[]

Cities[]

Town[]

Census-designated places[]

Unincorporated communities[]

Unorganized territories[]

The county is divided into two areas of unorganized territory: North Dewey and South Dewey.

Politics[]

Owing to its Native American majority population, Dewey has since the 1990s been a strongly Democratic county in solidly Republican South Dakota. The last Republican to carry the county was Ronald Reagan in his 1984 landslide when he came within 3,819 votes of claiming all fifty states. Before this period, by contrast, Dewey was a Republican-leaning county even for South Dakota. Between its formation and 1984, Dewey had voted Democratic only in the three landslide Democratic wins of 1964, 1936 and 1932, plus for Woodrow Wilson in 1916 when his anti-war policies had strong appeal in the West.

Presidential election results

See also[]

References[]

  1. ^ Jump up to: a b "2020 Census Results". US Census Bureau. Retrieved August 14, 2021.
  2. ^ "Find a County". National Association of Counties. Archived from the original on 31 May 2011. Retrieved 7 June 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 March 29, 2015.
  4. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 105.
  5. ^ ""Find an Altitude" Google Maps (accessed February 2, 2019)". Archived from the original on May 21, 2019. Retrieved February 2, 2019.
  6. ^ "2010 Census Gazetteer Files". US Census Bureau. August 22, 2012. Retrieved March 24, 2015.
  7. ^ [1] Map of Time Zone Line through South Dakota (accessed January 30, 2019)]
  8. ^ "US Decennial Census". US Census Bureau. Retrieved March 24, 2015.
  9. ^ "Historical Census Browser". University of Virginia Library. Retrieved March 24, 2015.
  10. ^ Forstall, Richard L., ed. (March 27, 1995). "Population of Counties by Decennial Census: 1900 to 1990". US Census Bureau. Retrieved March 24, 2015.
  11. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). US Census Bureau. April 2, 2001. Retrieved March 24, 2015.
  12. ^ "U.S. Census website". US Census Bureau. Retrieved 14 May 2011.
  13. ^ Jump up to: a b c "Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". US Census Bureau. Archived from the original on 13 February 2020. Retrieved 11 March 2016.
  14. ^ "Population, Housing Units, Area, and Density: 2010 - County". US Census Bureau. Archived from the original on 13 February 2020. Retrieved 11 March 2016.
  15. ^ "Selected Social Characteristics in the US – 2006-2010 American Community Survey 5-Year Estimates". U.S. Census Bureau. Archived from the original on February 13, 2020. Retrieved March 11, 2016.
  16. ^ "Selected Economic Characteristics – 2006-2010 American Community Survey 5-Year Estimates". US Census Bureau. Archived from the original on February 13, 2020. Retrieved March 11, 2016.
  17. ^ Bear Creek SD Google Maps (accessed 2 February 2019)
  18. ^ Parade SD Google Maps (accessed 2 February 2019)
  19. ^ Promise SD Google Maps (accessed 2 February 2019)
  20. ^ Leip, David. "Atlas of US Presidential Elections". uselectionatlas.org. Retrieved 15 April 2018.

Coordinates: 45°10′N 100°53′W / 45.16°N 100.88°W / 45.16; -100.88

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