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Jones County is a county located in the state of South Dakota. Based on the 2010 census, the population was 1,006, making it the least populous county in South Dakota. Its county seat is Murdo. Created in 1916 and organized in 1917, it is the most recently established county in South Dakota
Jones is named for Jones County, Iowa.
County QuickFacts: CensusBureau Quick Facts
As an unorganized county, Jones County was called Pratt. Lyman County, which was unorganized and heavily in debt, persuaded Presho and Pratt Counties to join. Almost immediately the fight to separate began. In 1907 the legislature passed a law describing how the counties should separate. The vote failed. In 1910 they voted again and lost and in 1916 they voted once again and the proposition carried. Murdo is the county seat.
As reported by the Census Bureau, the county has a total area of 972 square miles (2,517 km2), of which, 971
square miles (2,514 km2) of it is land and 1 square miles (3 km2) of it (0.12%) is water.
Bordering counties are as follows: