Mellette County, founded in the year 1909, is situated in the U.S. state of South Dakota. It covers nearly 1,311 sq mi of area. The county was named after Arthur C. Mellette, first Governor of South Dakota. White River is the county seat and the largest city. More than 2K people with a racial makeup including of White, Pacific Islander, African American, Asian, Native American, Hispanic or Latino of any race, and other races, 0.6K households and 0.4K of family units reside in this region.

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