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Dewey County, South Dakota

Dewey County, South Dakota
Map of South Dakota highlighting Dewey County
Location in the state of South Dakota
Map of the United States highlighting South Dakota
South Dakota's location in the U.S.
Founded 1910
Named for William P. Dewey
Seat Timber Lake
Largest community North Eagle Butte
 • Total 2,445 sq mi (6,333 km2)
 • Land 2,302 sq mi (5,962 km2)
 • Water 143 sq mi (370 km2), 5.8%
 • (2010) 5,301
 • Density 2.3/sq mi (1/km²)
Congressional district At-large
Time zone Mountain: UTC-7/-6

Dewey County is a

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved November 25, 2013. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ "Dakota Territory, South Dakota, and North Dakota: Individual County Chronologies". Dakota Territory Atlas of Historical County Boundaries. The Newberry Library. 2006. Retrieved March 29, 2015. 
  4. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 105. 
  5. ^ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved March 24, 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 March 24, 2015. 
  8. ^ "Historical Census Browser". University of Virginia Library. Retrieved March 24, 2015. 
  9. ^ Forstall, Richard L., ed. (March 27, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved March 24, 2015. 
  10. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Retrieved March 24, 2015. 
  11. ^ "American FactFinder".  


See also

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

Unorganized territories

Unincorporated communities

Census-designated places




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.

In the county, the population was spread out with 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.

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.

As of the census[11] of 2000, there were 5,972 people, 1,863 households, and 1,386 families residing 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 1 per square mile (0/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 according to Census 2000. 84.6% spoke English and 14.4% Dakota as their first language.


Adjacent counties

Major highways

According to the U.S. Census Bureau, 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.[5] 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 lie entirely on Indian reservations.



  • Geography 1
    • Major highways 1.1
    • Adjacent counties 1.2
  • Demographics 2
  • Communities 3
    • Cities 3.1
    • Town 3.2
    • Census-designated places 3.3
    • Unincorporated communities 3.4
    • Unorganized territories 3.5
  • See also 4
  • References 5

Territorial surveyor-general from 1873 to 1877. [4] It was named for William P. Dewey,[3]

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