Highest Vietnamese population share, South Dakota counties

South Dakota counties ranked by the share of all residents who are Vietnamese (2024 American Community Survey). A concentration measure: Vietnamese residents as a percentage of total population. This list covers the 14 counties in South Dakota that qualify, ranked against each other statewide. The median across all 14 is 0.2%. Biggest climber in the top 100 since 2020: Brown County, SD, up 8 places to #5.