Ranking of South Dakota Counties By Percentage of Population with British Ancestry in 2021

Based on the US Census ACS-5Yrs estimates, in 2021, there were 2.38K people in South Dakota with British ancestry (0.27% of South Dakota population). Among all South Dakota counties, Mellette County had the highest percentage of its population with British ancestry (1.10%), followed by Deuel County (0.79%), and Bennett County (0.76%).

The chart and table below shows the top 10 counties with high percentage of its population having British ancestry.

You can see similar information for other states and for other ancestry groups in South Dakota.