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Walworth County, South Dakota facts for kids

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Walworth County
U.S. county
Walworth County Courthouse, Selby
Walworth County Courthouse, Selby
Map of South Dakota highlighting Walworth 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 1873 (created)
1883 (organized)
Named for Walworth County, Wisconsin
Seat Selby
Largest city Mobridge
Area
 • Total 745 sq mi (1,930 km2)
 • Land 709 sq mi (1,840 km2)
 • Water 36 sq mi (90 km2)  4.8%
Population
 (2020)
 • Total 5,315
 • Estimate 
(2023)
 5,269 Decrease
 • Density 7.134/sq mi (2.7545/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district At-large

Walworth County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 5,315. Its county seat is Selby. The county was created in 1873 and organized in 1883. It is named for Walworth County, Wisconsin.

flows southward along the county's west boundary line. Swan Creek flows west-northwest through the county's SW corner, discharging into the Missouri. The county's terrain consists of semi-arid rolling hills, carved by drainages and gullies. Most of the area is devoted to agriculture. The terrain slopes to the south and east, although the western portion of the county drops westward into the Missouri River valley. The county's highest point is on the eastern portion of its north boundary line, at 1,982 ft (604 m) ASL. The county has a total area of 745 square miles (1,930 km2), of which 709 square miles (1,840 km2) is land and 36 square miles (93 km2) (4.8%) is water.

The eastern portion of South Dakota's counties (48 of 66) observe Central Time; the western counties (18 of 66) observe Mountain Time. Walworth County is the westernmost of the SD counties to observe Central Time.

Major highways

  • US 12.svg U.S. Highway 12
  • US 83.svg U.S. Highway 83
  • SD 20.svg South Dakota Highway 20
  • SD 47.svg South Dakota Highway 47
  • SD 130.svg South Dakota Highway 130
  • SD 144.svg South Dakota Highway 144
  • SD 271.svg South Dakota Highway 271
  • SD 1804.svg South Dakota Highway 1804

Adjacent counties

Protected areas

  • Blue Blanket Lake State Game Production Area
  • Bowdle Beach State Lakeside Use Area
  • Indian Creek State Recreation Area
  • Lake Hiddenwood State Recreation Area
  • LeBeau State Lakeside Use Area
  • Oahe Blue Blanket State Game Production Area
  • Revheim Bay Recreation Area
  • Spring Lake State Game Production Area
  • Swan Creek State Game Production Area
  • Swan Creek State Recreation Area
  • Swan Lake State Game Production Area
  • Thomas Bay State Lakeside Use Area
  • Walth Bay State Game Production Area
  • Walth Bay State Lakeside Use Area

Lakes

  • Horseshoe Lake
  • Lake Hiddenwood
  • Lake Oahe (part)
  • Molsted Lake
  • Spring Lake
  • Swan Lake

Demographics

Historical population
Census Pop. %±
1880 46 —
1890 2,153 4,580.4%
1900 3,839 78.3%
1910 6,488 69.0%
1920 8,447 30.2%
1930 8,791 4.1%
1940 7,274 −17.3%
1950 7,648 5.1%
1960 8,097 5.9%
1970 7,842 −3.1%
1980 7,011 −10.6%
1990 6,087 −13.2%
2000 5,974 −1.9%
2010 5,438 −9.0%
2020 5,315 −2.3%
2023 (est.) 5,269 −3.1%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2020

2020 census

As of the 2020 census, there were 5,315 people, 2,271 households, and 1,400 families in the county. The population density was 7.5 inhabitants per square mile (2.9/km2). There were 2,927 housing units.

2010 census

As of the 2010 census, there were 5,438 people, 2,392 households, and 1,490 families in the county. The population density was 7.7 inhabitants per square mile (3.0/km2). There were 3,003 housing units at an average density of 4.2 units per square mile (1.6 units/km2). The racial makeup of the county was 82.6% white, 14.3% American Indian, 0.2% Asian, 0.1% black or African American, 0.2% from other races, and 2.6% from two or more races. Those of Hispanic or Latino origin made up 0.7% of the population. In terms of ancestry, 56.9% were German, 12.5% were Norwegian, 8.9% were Russian, 5.4% were Irish, and 3.1% were American.

Of the 2,392 households, 25.9% had children under the age of 18 living with them, 49.2% were married couples living together, 8.9% had a female householder with no husband present, 37.7% were non-families, and 32.8% of all households were made up of individuals. The average household size was 2.21 and the average family size was 2.79. The median age was 47.2 years.

The median income for a household in the county was $39,517 and the median income for a family was $51,250. Males had a median income of $37,857 versus $21,551 for females. The per capita income for the county was $23,716. About 7.5% of families and 14.5% of the population were below the poverty line, including 23.6% of those under age 18 and 14.4% of those age 65 or over.

Communities

Cities

Towns

Unincorporated community

  • Sitka

Unorganized territory

  • West Walworth
  • East Walworth

See also

Kids robot.svg In Spanish: Condado de Walworth (Dakota del Sur) para niños

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