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Sanborn County, South Dakota facts for kids

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Sanborn County
Steam-powered automobile by E.S. Callihan in Woodsocket (1884)
Steam-powered automobile by E.S. Callihan in Woodsocket (1884)
Map of South Dakota highlighting Sanborn 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.
Country  United States
State  South Dakota
Founded 1883
Named for George W. Sanborn
Seat Woonsocket
Largest city Woonsocket
Area
 • Total 570 sq mi (1,500 km2)
 • Land 569 sq mi (1,470 km2)
 • Water 1.2 sq mi (3 km2)  0.2%
Population
 (2020)
 • Total 2,330
 • Estimate 
(2021)
2,378 Increase
 • Density 4.09/sq mi (1.578/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district At-large

Sanborn County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 2,330. Its county seat and largest city is Woonsocket. The county was created by the Dakota Territorial legislature on May 1, 1883, with land partitioned from Miner County. It was fully organized by July 18, 1883.

Geography

According to the U.S. Census Bureau, the county has a total area of 570 square miles (1,500 km2), of which 569 square miles (1,470 km2) is land and 1.2 square miles (3.1 km2) (0.2%) is water.

Major highways

  • SD 34.svg South Dakota Highway 34
  • SD 37.svg South Dakota Highway 37
  • SD 224.svg South Dakota Highway 224

Adjacent counties

Demographics

Historical population
Census Pop.
1890 4,610
1900 4,464 −3.2%
1910 6,607 48.0%
1920 7,877 19.2%
1930 7,326 −7.0%
1940 5,754 −21.5%
1950 5,142 −10.6%
1960 4,641 −9.7%
1970 3,697 −20.3%
1980 3,213 −13.1%
1990 2,833 −11.8%
2000 2,675 −5.6%
2010 2,355 −12.0%
2020 2,330 −1.1%
2021 (est.) 2,378 1.0%
US Decennial Census
1790-1960 1900-1990
1990-2000 2010-2020

2010 census

As of the 2010 United States Census, there were 2,355 people, 975 households, and 630 families in the county. The population density was 4.1 inhabitants per square mile (1.6/km2). There were 1,172 housing units at an average density of 2.1 per square mile (0.81/km2). The racial makeup of the county was 98.0% white, 0.3% American Indian, 0.2% Asian, 0.6% from other races, and 1.1% from two or more races. Those of Hispanic or Latino origin made up 1.2% of the population. In terms of ancestry,

Of the 975 households, 24.2% had children under the age of 18 living with them, 55.0% were married couples living together, 6.3% had a female householder with no husband present, 35.4% were non-families, and 31.1% of all households were made up of individuals. The average household size was 2.24 and the average family size was 2.79. The median age was 47.1 years.

The median income for a household in the county was $44,732 and the median income for a family was $56,304. Males had a median income of $32,361 versus $23,724 for females. The per capita income for the county was $21,055. About 7.7% of families and 12.7% of the population were below the poverty line, including 21.4% of those under age 18 and 15.1% of those age 65 or over.

Communities

City

Towns

Census-designated place

Unincorporated community

Townships

The county is divided into sixteen townships:

  • Afton
  • Benedict
  • Butler
  • Diana
  • Elliott
  • Floyd
  • Jackson
  • Letcher
  • Logan
  • Oneida
  • Ravenna
  • Silver Creek
  • Twin Lake
  • Union
  • Warren, Woonsocket
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