River Sioux, Iowa

River Sioux is an unincorporated community and census-designated place in Harrison County, Iowa, United States. As of the 2010 Census the population was 59.

History
River Sioux was platted in 1868 when the railroad was extended to that point. It was named after the nearby Little Sioux River.

Education
River Sioux is zoned to the West Harrison Community School District.