Roberts County, South Dakota
| Roberts County, South Dakota | |
|---|---|
 Location in the U.S. state of South Dakota |
|
 South Dakota's location in the U.S. |
|
| Founded | March 8, 1883 |
| Named for | S. G. Roberts |
| Seat | Sisseton |
| Largest city | Sisseton |
| Area | |
| • Total | 1,136 sq mi (2,942 km2) |
| • Land | 1,101 sq mi (2,852 km2) |
| • Water | 35 sq mi (91 km2), 3.1% |
| Population (est.) | |
| • (2015) | 10,311 |
| • Density | 9.2/sq mi (4/km²) |
| Congressional district | At-large |
| Time zone | Central: UTC-6/-5 |
| Website | roberts |
Roberts County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 10,149. Its county seat is Sisseton. The county was named either for S. G. Roberts of Fargo, North Dakota, or for Solomon Robar, an early local French fur trader.
According to the U.S. Census Bureau, the county has a total area of 1,136 square miles (2,940 km2), of which 1,101 square miles (2,850 km2) is land and 35 square miles (91 km2) (3.1%) is water.
As of the census of 2000, there were 10,016 people, 3,683 households, and 2,618 families residing in the county. The population density was 9 people per square mile (4/km²). There were 4,734 housing units at an average density of 4 per square mile (2/km²). The racial makeup of the county was 68.29% White, 0.10% Black or African American, 29.86% Native American, 0.21% Asian, 0.03% from other races, and 1.51% from two or more races. 0.63% of the population were Hispanic or Latino of any race.
There were 3,683 households out of which 33.80% had children under the age of 18 living with them, 53.50% were married couples living together, 11.80% had a female householder with no husband present, and 28.90% were non-families. 26.80% of all households were made up of individuals and 12.40% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.22.
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