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

Based on the US Census ACS-5Yrs estimates, in 2021, there were 59 people in South Dakota with Australian ancestry (0.01% of South Dakota population). Among all South Dakota counties, Roberts County had the highest percentage of its population with Australian ancestry (0.12%), followed by Bon Homme County (0.09%), and Grant County (0.04%).

The chart and table below shows the top 4 counties with high percentage of its population having Australian ancestry.

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