Walworth County, South Dakota
| Walworth County, South Dakota | |
|---|---|
 Location in the U.S. state of South Dakota |
|
 South Dakota's location in the U.S. |
|
| Founded | 1883 |
| Named for | Walworth County, Wisconsin |
| Seat | Selby |
| Largest city | Mobridge |
| Area | |
| • Total | 745 sq mi (1,930 km2) |
| • Land | 709 sq mi (1,836 km2) |
| • Water | 36 sq mi (93 km2), 4.8% |
| Population (est.) | |
| • (2015) | 5,443 |
| • Density | 7.7/sq mi (3/km²) |
| Congressional district | At-large |
| Time zone | Central: UTC-6/-5 |
| Website | walworthco |
Walworth County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 5,438. Its county seat is Selby. The county was created in 1873 and organized in 1883. It is named after Walworth County, Wisconsin.
According to the U.S. Census Bureau, 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.
As of the census of 2000, there were 5,974 people, 2,506 households, and 1,643 families residing in the county. The population density was 8 people per square mile (3/km²). There were 3,144 housing units at an average density of 4 per square mile (2/km²). The racial makeup of the county was 86.58% White, 0.03% Black or African American, 11.77% Native American, 0.15% Asian, 0.03% Pacific Islander, 0.07% from other races, and 1.37% from two or more races. 0.60% of the population were Hispanic or Latino of any race.
There were 2,506 households out of which 26.90% had children under the age of 18 living with them, 53.40% were married couples living together, 8.90% had a female householder with no husband present, and 34.40% were non-families. 31.40% of all households were made up of individuals and 16.40% had someone living alone who was 65 years of age or older. The average household size was 2.31 and the average family size was 2.89.
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