Most six-figure households, South Dakota counties

South Dakota counties with the most households earning $100,000 or more, as of the 2024 American Community Survey. Ranked by number of households, not the share. This list covers the 66 counties in South Dakota that qualify, ranked against each other statewide. The median across all 66 is 956. Biggest climber in the top 100 since 2020: Day County, SD, up 5 places to #28.