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Join the roomRoberts County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 10,280. Its county seat is Sisseton. The county was named for S. G. Roberts of Fargo, North Dakota. It was created on March 8, 1883, and fully organized by August 6 of that year. Its boundary was altered once, in 1885.
Not who you're looking for? Others named Roberts County: county in Texas, United States
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