South Dakota Population By County in 2018

Updated on December 2, 2021.

According to the US Census Bureau population estimates, there were 879,386 people living in South Dakota in 2018. Minnehaha County was the most populated county with 191,250 residents, followed by Pennington County with 112,260 residents, and Lincoln County with 58,881 residents. Jones County with a population of 924 was the least populated county in South Dakota in 2018.

Use the map below to interactively explore the population of each county in South Dakota in 2018. The data can also be explored further by sorting and filtering with the table below.

Hover/Click on the counties to see the values.
South Dakota Population By County (2018)
See also Population estimate for other years:
Table of South Dakota Population By County in 2018
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County Population % of State Population
Aurora 2,775 0.32%
Beadle 18,239 2.07%
Bennett 3,482 0.40%
Bon Homme 6,919 0.79%
Brookings 35,266 4.01%
Brown 39,103 4.45%
Brule 5,185 0.59%
Buffalo 2,039 0.23%
Butte 10,259 1.17%
Campbell 1,377 0.16%
Charles Mix 9,309 1.06%
Clark 3,721 0.42%
Clay 13,985 1.59%
Codington 28,098 3.20%
Corson 4,137 0.47%
Custer 8,821 1.00%
Davison 19,847 2.26%
Day 5,487 0.62%
Deuel 4,317 0.49%
Dewey 5,904 0.67%
Douglas 2,919 0.33%
Edmunds 3,853 0.44%
Fall River 6,730 0.77%
Faulk 2,320 0.26%
Grant 7,123 0.81%
Gregory 4,197 0.48%
Haakon 1,888 0.22%
Hamlin 6,113 0.70%
Hand 3,234 0.37%
Hanson 3,369 0.38%
Harding 1,252 0.14%
Hughes 17,663 2.01%
Hutchinson 7,292 0.83%
Hyde 1,265 0.14%
Jackson 3,277 0.37%
Jerauld 2,017 0.23%
Jones 924 0.11%
Kingsbury 4,896 0.56%
Lake 13,045 1.48%
Lawrence 25,776 2.93%
Lincoln 58,881 6.70%
Lyman 3,796 0.43%
McCook 5,572 0.63%
McPherson 2,405 0.27%
Marshall 4,873 0.55%
Meade 28,305 3.22%
Mellette 2,032 0.23%
Miner 2,211 0.25%
Minnehaha 191,250 21.75%
Moody 6,479 0.74%
Oglala Lakota 14,324 1.63%
Pennington 112,260 12.77%
Perkins 2,899 0.33%
Potter 2,205 0.25%
Roberts 10,358 1.18%
Sanborn 2,387 0.27%
Spink 6,469 0.74%
Stanley 3,035 0.35%
Sully 1,373 0.16%
Todd 10,341 1.18%
Tripp 5,484 0.62%
Turner 8,392 0.95%
Union 15,616 1.78%
Walworth 5,450 0.62%
Yankton 22,807 2.59%
Ziebach 2,759 0.31%