Rank |
County |
Population (2012) |
1 |
Minnehaha County, South Dakota
|
175,037
|
2 |
Pennington County, South Dakota
|
104,347
|
3 |
Lincoln County, South Dakota
|
48,296
|
4 |
Brown County, South Dakota
|
37,331
|
5 |
Brookings County, South Dakota
|
32,629
|
6 |
Codington County, South Dakota
|
27,606
|
7 |
Meade County, South Dakota
|
26,052
|
8 |
Lawrence County, South Dakota
|
24,397
|
9 |
Yankton County, South Dakota
|
22,603
|
10 |
Davison County, South Dakota
|
19,769
|
11 |
Beadle County, South Dakota
|
17,753
|
12 |
Hughes County, South Dakota
|
17,450
|
13 |
Union County, South Dakota
|
14,855
|
14 |
Clay County, South Dakota
|
14,131
|
15 |
Shannon County, South Dakota
|
14,059
|
16 |
Lake County, South Dakota
|
11,771
|
17 |
Roberts County, South Dakota
|
10,303
|
18 |
Butte County, South Dakota
|
10,228
|
19 |
Todd County, South Dakota
|
9,942
|
20 |
Charles Mix County, South Dakota
|
9,216
|
21 |
Custer County, South Dakota
|
8,339
|
22 |
Turner County, South Dakota
|
8,308
|
23 |
Grant County, South Dakota
|
7,259
|
24 |
Hutchinson County, South Dakota
|
7,187
|
25 |
Bon Homme County, South Dakota
|
7,029
|
26 |
Fall River County, South Dakota
|
6,971
|
27 |
Spink County, South Dakota
|
6,611
|
28 |
Moody County, South Dakota
|
6,446
|
29 |
Hamlin County, South Dakota
|
5,918
|
30 |
Day County, South Dakota
|
5,613
|
31 |
McCook County, South Dakota
|
5,610
|
32 |
Dewey County, South Dakota
|
5,538
|
33 |
Tripp County, South Dakota
|
5,485
|
34 |
Walworth County, South Dakota
|
5,459
|
35 |
Brule County, South Dakota
|
5,293
|
36 |
Kingsbury County, South Dakota
|
5,220
|
37 |
Marshall County, South Dakota
|
4,671
|
38 |
Deuel County, South Dakota
|
4,380
|
39 |
Gregory County, South Dakota
|
4,265
|
40 |
Corson County, South Dakota
|
4,077
|
41 |
Edmunds County, South Dakota
|
4,026
|
42 |
Lyman County, South Dakota
|
3,789
|
43 |
Clark County, South Dakota
|
3,585
|
44 |
Bennett County, South Dakota
|
3,436
|
45 |
Hand County, South Dakota
|
3,388
|
46 |
Hanson County, South Dakota
|
3,377
|
47 |
Jackson County, South Dakota
|
3,191
|
48 |
Perkins County, South Dakota
|
3,037
|
49 |
Douglas County, South Dakota
|
2,970
|
50 |
Stanley County, South Dakota
|
2,969
|
51 |
Ziebach County, South Dakota
|
2,869
|
52 |
Aurora County, South Dakota
|
2,742
|
53 |
McPherson County, South Dakota
|
2,439
|
54 |
Faulk County, South Dakota
|
2,377
|
55 |
Potter County, South Dakota
|
2,359
|
56 |
Miner County, South Dakota
|
2,326
|
57 |
Sanborn County, South Dakota
|
2,324
|
58 |
Mellette County, South Dakota
|
2,101
|
59 |
Jerauld County, South Dakota
|
2,047
|
60 |
Buffalo County, South Dakota
|
2,020
|
61 |
Haakon County, South Dakota
|
1,939
|
62 |
Hyde County, South Dakota
|
1,437
|
63 |
Sully County, South Dakota
|
1,427
|
64 |
Campbell County, South Dakota
|
1,396
|
65 |
Harding County, South Dakota
|
1,316
|
66 |
Jones County, South Dakota
|
1,013
|