South Dakota Population By County in 2021

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2021, the population of South Dakota was 896,299. Among all South Dakota counties, Minnehaha had the highest population (199,904), followed by Pennington (111,886), and Lincoln (67,992). Jones was the least populated county (879).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can see similar information for other states and by state for the United States.

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South Dakota Population By County in 2021
South Dakota Population By County in 2021
County
Population
% of State Population
Minnehaha 199,904 22.30
Pennington 111,886 12.48
Lincoln 67,992 7.59
Brown 38,117 4.25
Brookings 34,696 3.87
Meade 30,289 3.38
Codington 28,484 3.18
Lawrence 26,162 2.92
Yankton 23,353 2.61
Davison 19,899 2.22
Beadle 19,181 2.14
Hughes 17,760 1.98
Union 16,876 1.88
Clay 15,165 1.69
Oglala Lakota 13,559 1.51
Lake 10,864 1.21
Butte 10,542 1.18
Roberts 10,172 1.14
Todd 9,301 1.04
Charles Mix 9,184 1.02
Turner 8,679 0.97
Custer 8,639 0.96
Grant 7,552 0.84
Hutchinson 7,377 0.82
Fall River 7,213 0.81
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