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Jackson County, South Dakota facts for kids

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Jackson County
Minuteman Missile National Historic Site
Map of South Dakota highlighting Jackson 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 (created)
1915 (organized)
Seat Kadoka
Largest community Kadoka
Area
 • Total 1,871 sq mi (4,850 km2)
 • Land 1,864 sq mi (4,830 km2)
 • Water 7.4 sq mi (19 km2)  0.4%
Population
 (2020)
 • Total 2,806
 • Estimate 
(2021)
2,878 Increase
 • Density 1.4997/sq mi (0.57905/km2)
Time zone UTC−7 (Mountain)
 • Summer (DST) UTC−6 (MDT)
Congressional district At-large
Washabaugh County was merged into Jackson County in 1983
Calcite-165292
An unusual specimen of calcite, densely intergrown with grains of sand. Collected from Rattlesnake Butte in Jackson County. Size: 6.9 x 5.4 x 3.9 cm.
Jackson County SD on I90
Jackson County sign on Interstate 90

Jackson County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 2,806. Its county seat is Kadoka. The county was created in 1883, and was organized in 1915. Washabaugh County was merged into Jackson County in 1983.

Geography

According to the U.S. Census Bureau, the county has a total area of 1,871 square miles (4,850 km2), of which 1,864 square miles (4,830 km2) is land and 7.4 square miles (19 km2) (0.4%) is water. About 57 percent of its land, the portion south of the White River, is on the Pine Ridge Indian Reservation. The county includes the easternmost portion of Badlands National Park.

Major highways

  • I-90.svg Interstate 90
  • US 14.svg U.S. Highway 14
  • SD 44.svg South Dakota Highway 44
  • SD 63.svg South Dakota Highway 63
  • SD 73.svg South Dakota Highway 73
  • SD 377.svg South Dakota Highway 377

Adjacent counties

National protected areas

Demographics

Historical population
Census Pop.
1920 2,472
1930 2,636 6.6%
1940 1,955 −25.8%
1950 1,768 −9.6%
1960 1,985 12.3%
1970 1,531 −22.9%
1980 3,437 124.5%
1990 2,811 −18.2%
2000 2,930 4.2%
2010 3,031 3.4%
2020 2,806 −7.4%
2021 (est.) 2,878 −5.0%
US Decennial Census
1790-1960 1900-1990
1990-2000 2010-2020

2010 census

As of the 2010 United States Census, there were 3,031 people, 996 households, and 703 families living in the county. The population density was 1.6 inhabitants per square mile (0.62/km2). There were 1,193 housing units at an average density of 0.6 per square mile (0.23/km2). The racial makeup of the county was 52.0% American Indian, 42.7% white, 0.2% black or African American, 0.2% from other races, and 4.8% from two or more races. Those of Hispanic or Latino origin made up 1.3% of the population. In terms of ancestry, 20.7% were German, 12.3% were Irish, 10.1% were Norwegian, 5.7% were English, and 0.2% were American.

Of the 996 households, 40.2% had children under the age of 18 living with them, 45.8% were married couples living together, 16.2% had a female householder with no husband present, 29.4% were non-families, and 26.2% of all households were made up of individuals. The average household size was 3.00 and the average family size was 3.65. The median age was 31.5 years.

The median income for a household in the county was $36,354 and the median income for a family was $41,838. Males had a median income of $32,377 versus $25,000 for females. The per capita income for the county was $14,568. About 20.6% of families and 30.0% of the population were below the poverty line, including 35.9% of those under age 18 and 5.6% of those age 65 or over.

Communities

City

Towns

Census-designated place

Unincorporated communities

Townships

The county has five organized townships:

  • Grandview II
  • Interior
  • Jewett
  • Wall
  • Weta

Unorganized territories

The county contains four areas of unorganized territory:

  • East Jackson
  • Northwest Jackson
  • Southeast Jackson
  • Southwest Jackson
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