Population of Counties in South Dakota (2018)

Name 2018 Population Growth Since 2010
Minnehaha County188,61610.96%
Pennington County110,1418.79%
Lincoln County56,66425.40%
Brown County39,1786.89%
Brookings County34,2557.05%
Codington County28,0993.25%
Meade County28,0189.93%
Lawrence County25,4295.06%
Yankton County22,6621.01%
Davison County19,7041.12%
Beadle County18,1574.27%
Hughes County17,6663.47%
Union County15,0293.70%
Oglala Lakota County14,3545.27%
Clay County13,9901.16%
Lake County12,80913.53%
Roberts County10,2780.84%
Butte County10,107-0.37%
Todd County10,0654.38%
Charles Mix County9,4282.99%
Custer County8,6915.01%
Turner County8,315-0.42%
Hutchinson County7,3580.29%
Grant County7,061-3.96%
Bon Homme County6,984-1.05%
Fall River County6,687-6.00%
Moody County6,5791.32%
Spink County6,410-0.17%
Hamlin County5,9480.42%
Dewey County5,8359.56%
Walworth County5,5431.84%
Day County5,521-3.29%
McCook County5,499-1.96%
Tripp County5,460-3.33%
Brule County5,3120.57%
Kingsbury County4,952-3.53%
Marshall County4,8043.49%
Deuel County4,281-1.59%
Gregory County4,226-1.03%
Corson County4,2033.24%
Edmunds County3,919-3.59%
Lyman County3,9043.80%
Clark County3,668-0.81%
Bennett County3,4540.09%
Hanson County3,4232.79%
Jackson County3,2897.84%
Hand County3,277-4.57%
Stanley County3,0111.35%
Perkins County2,974-0.20%
Douglas County2,931-2.10%
Ziebach County2,756-2.44%
Aurora County2,7381.37%
Sanborn County2,4504.08%
McPherson County2,426-1.18%
Faulk County2,329-1.65%
Potter County2,231-5.10%
Miner County2,228-6.15%
Mellette County2,0883.06%
Jerauld County2,028-3.01%
Buffalo County1,9993.36%
Haakon County1,9430.62%
Sully County1,4072.10%
Campbell County1,379-6.25%
Hyde County1,318-7.31%
Harding County1,242-0.32%
Jones County936-7.42%