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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 373 people in South Dakota with Romanian ancestry (0.04% of South Dakota population). Among all South Dakota counties, Day County had the highest percentage of its population with Romanian ancestry (0.46%), followed by Brown County (0.29%), and Butte County (0.27%).

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

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

Data Source: US Census Bureau.
Ranking of South Dakota Counties By Percentage of Population with Romanian Ancestry in 2021
Day County
Brown County
Butte County
Aurora County
Clay County
Perkins County
Bon Homme County
Hutchinson County
Lincoln County
Davison County
Ranking of South Dakota Counties By Percentage of Population with Romanian Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Day County 0.46
2 Brown County 0.29
3 Butte County 0.27
4 Aurora County 0.15
5 Clay County 0.10
5 Perkins County 0.10
6 Bon Homme County 0.09
7 Hutchinson County 0.08
7 Lincoln County 0.08
8 Davison County 0.06
9 Buffalo County 0.05
10 Grant County 0.04
10 Pennington County 0.04
11 Hughes County 0.03
11 Minnehaha County 0.03
12 Lawrence County 0.01