South Dakota Population By County in 2018

Updated on January 27, 2024.

Based on the US Census Vintage data estimates, in 2018, the population of South Dakota was 879,386. Among all South Dakota counties, Minnehaha had the highest population (191,250), followed by Pennington (112,260), and Lincoln (58,881). Jones was the least populated county (924).

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 2018
South Dakota Population By County in 2018
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County Population % of State Population
Aurora 2775 0.32
Beadle 18239 2.07
Bennett 3482 0.40
Bon Homme 6919 0.79
Brookings 35266 4.01
Brown 39103 4.45
Brule 5185 0.59
Buffalo 2039 0.23
Butte 10259 1.17
Campbell 1377 0.16
Charles Mix 9309 1.06
Clark 3721 0.42
Clay 13985 1.59
Codington 28098 3.20
Corson 4137 0.47
Custer 8821 1.00
Davison 19847 2.26
Day 5487 0.62
Deuel 4317 0.49
Dewey 5904 0.67
Douglas 2919 0.33
Edmunds 3853 0.44
Fall River 6730 0.77
Faulk 2320 0.26
Grant 7123 0.81
Gregory 4197 0.48
Haakon 1888 0.22
Hamlin 6113 0.70
Hand 3234 0.37
Hanson 3369 0.38
Harding 1252 0.14
Hughes 17663 2.01
Hutchinson 7292 0.83
Hyde 1265 0.14
Jackson 3277 0.37
Jerauld 2017 0.23
Jones 924 0.11
Kingsbury 4896 0.56
Lake 13045 1.48
Lawrence 25776 2.93
Lincoln 58881 6.70
Lyman 3796 0.43
McCook 5572 0.63
McPherson 2405 0.27
Marshall 4873 0.55
Meade 28305 3.22
Mellette 2032 0.23
Miner 2211 0.25
Minnehaha 191250 21.75
Moody 6479 0.74
Oglala Lakota 14324 1.63
Pennington 112260 12.77
Perkins 2899 0.33
Potter 2205 0.25
Roberts 10358 1.18
Sanborn 2387 0.27
Spink 6469 0.74
Stanley 3035 0.35
Sully 1373 0.16
Todd 10341 1.18
Tripp 5484 0.62
Turner 8392 0.95
Union 15616 1.78
Walworth 5450 0.62
Yankton 22807 2.59
Ziebach 2759 0.31