Ranking of South Dakota Cities and Places By Percentage of Population with Finnish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 4.35K people in South Dakota with Finnish ancestry (0.49% of South Dakota population). Among all South Dakota cities and places with a population of at least 10K, Spearfish city had the highest percentage of its population with Finnish ancestry (1.60%), followed by Watertown city (0.98%), and Pierre city (0.83%).

The chart and table below shows the top 10 cities with high percentage of its population having Finnish 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 Cities and Places By Percentage of Population with Finnish Ancestry in 2021
Spearfish city
Watertown city
Pierre city
Aberdeen city
Rapid City city
Vermillion city
Yankton city
Brandon city
Huron city
Sioux Falls city
Ranking of South Dakota Cities and Places By Percentage of Population with Finnish Ancestry in 2021
0 of 0
Rank Ciy or Place Percentage of Pop. (%)
1 Spearfish city 1.60
2 Watertown city 0.98
3 Pierre city 0.83
4 Aberdeen city 0.58
5 Rapid City city 0.51
6 Vermillion city 0.48
6 Yankton city 0.48
7 Brandon city 0.45
8 Huron city 0.24
9 Sioux Falls city 0.23
10 Brookings city 0.21
11 Mitchell city 0.06