Largest Finnish population, South Dakota cities

South Dakota cities ranked by the number of residents who are Finnish ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 16 cities in South Dakota that qualify, ranked against each other statewide. The median across all 16 is 85. Biggest climber in the top 100 since 2020: Belle Fourche, SD, up 8 places to #7.