Roberts County is a county located in the state of South Dakota. Based on 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.
Etymology - Origin of Roberts County Name
Roberts is named for territorial legislator S. G. Roberts.
Roberts County, created and organized in 1883, has a name of uncertain derivation. One theory has it named for S. G.
Roberts, a book publisher who was a member of the council in the Territorial Legislature. The county seat was originally
located at Travare. Wilmot wanted the county seat and a court battle followed. Travare won but the records were taken by
force and moved to Wilmot where it stayed until 1898 when by a similar situation the records were taken from Wilmot to
Geography: Land and Water
As reported by the Census Bureau, the county has a total area of 1,135 square miles (2,941 km2), of which,
1,101 square miles (2,852 km2) of it is land and 34 square miles (88 km2) of it (3.00%) is water.