County
|
Mike Rounds Republican
|
Daniel Ahlers Democratic
|
Margin
|
Total votes
|
#
|
%
|
#
|
%
|
#
|
%
|
Aurora
|
1,002
|
71.32
|
403
|
28.68
|
599
|
42.63
|
1,405
|
Beadle
|
5,104
|
71.99
|
1,986
|
28.01
|
3,118
|
43.98
|
7,090
|
Bennett
|
729
|
62.52
|
437
|
37.48
|
292
|
25.04
|
1,166
|
Bon Homme
|
2,156
|
72.11
|
834
|
27.89
|
1,322
|
44.21
|
2,990
|
Brookings
|
8,792
|
60.48
|
5,746
|
39.52
|
3,046
|
20.95
|
14,538
|
Brown
|
11,168
|
64.00
|
6,283
|
36.00
|
4,885
|
27.99
|
17,451
|
Brule
|
1,735
|
69.65
|
756
|
30.35
|
979
|
39.30
|
2,491
|
Buffalo
|
223
|
40.92
|
322
|
59.08
|
-99
|
-18.16
|
545
|
Butte
|
3,809
|
79.85
|
961
|
20.15
|
2,848
|
59.71
|
4,770
|
Campbell
|
745
|
85.93
|
122
|
14.07
|
623
|
71.86
|
867
|
Charles Mix
|
2,542
|
66.88
|
1,259
|
33.12
|
1,283
|
33.75
|
3,801
|
Clark
|
1,397
|
75.64
|
450
|
24.36
|
947
|
51.27
|
1,847
|
Clay
|
2,857
|
50.44
|
2,807
|
49.56
|
50
|
0.88
|
5,664
|
Codington
|
9,479
|
72.33
|
3,626
|
27.67
|
5,853
|
44.66
|
13,105
|
Corson
|
681
|
53.88
|
583
|
46.12
|
98
|
7.75
|
1,264
|
Custer
|
3,973
|
72.82
|
1,483
|
27.18
|
2,490
|
45.64
|
5,456
|
Davison
|
5,893
|
69.88
|
2,540
|
30.12
|
3,353
|
39.76
|
8,433
|
Day
|
1,895
|
63.93
|
1,069
|
36.07
|
826
|
27.87
|
2,964
|
Deuel
|
1,714
|
73.18
|
628
|
26.81
|
1,086
|
46.37
|
2,342
|
Dewey
|
884
|
45.43
|
1,062
|
54.57
|
-178
|
-9.15
|
1,946
|
Douglas
|
1,469
|
86.21
|
235
|
13.79
|
1,234
|
72.42
|
1,704
|
Edmunds
|
1,539
|
77.45
|
448
|
22.55
|
1,091
|
54.91
|
1,987
|
Fall River
|
3,009
|
75.19
|
993
|
24.81
|
2,016
|
50.37
|
4,002
|
Faulk
|
975
|
82.07
|
213
|
17.93
|
762
|
64.14
|
1,188
|
Grant
|
2,723
|
72.63
|
1,026
|
27.37
|
1,697
|
45.26
|
3,749
|
Gregory
|
1,766
|
78.35
|
488
|
21.65
|
1,278
|
56.70
|
2,254
|
Haakon
|
1,032
|
90.69
|
106
|
9.31
|
926
|
81.37
|
1,138
|
Hamlin
|
2,413
|
78.60
|
657
|
21.40
|
1,756
|
57.20
|
3,070
|
Hand
|
1,480
|
79.66
|
378
|
20.34
|
1,102
|
59.31
|
1,858
|
Hanson
|
1,796
|
76.10
|
564
|
23.90
|
1,232
|
52.20
|
2,360
|
Harding
|
727
|
90.87
|
73
|
9.13
|
654
|
81.75
|
800
|
Hughes
|
6,217
|
70.95
|
2,546
|
29.05
|
3,671
|
41.89
|
8,763
|
Hutchinson
|
2,982
|
79.44
|
772
|
20.56
|
2,210
|
58.87
|
3,754
|
Hyde
|
568
|
79.89
|
143
|
20.11
|
425
|
59.78
|
711
|
Jackson
|
756
|
67.92
|
357
|
32.08
|
399
|
35.85
|
1,113
|
Jerauld
|
720
|
72.22
|
277
|
27.78
|
443
|
44.43
|
997
|
Jones
|
497
|
83.39
|
99
|
16.61
|
398
|
66.78
|
596
|
Kingsbury
|
1,970
|
70.89
|
809
|
29.11
|
1,161
|
41.78
|
2,779
|
Lake
|
3,816
|
64.84
|
2,069
|
35.16
|
1,747
|
29.69
|
5,885
|
Lawrence
|
9,385
|
68.29
|
4,358
|
31.71
|
5,027
|
36.58
|
13,743
|
Lincoln
|
21,221
|
65.83
|
11,013
|
34.17
|
10,208
|
31.67
|
32,234
|
Lyman
|
1,066
|
66.67
|
533
|
33.33
|
533
|
33.33
|
1,599
|
Marshall
|
1,334
|
61.00
|
853
|
39.00
|
481
|
22.00
|
2,187
|
McCook
|
2,072
|
71.28
|
835
|
28.72
|
1,237
|
42.55
|
2,907
|
McPherson
|
1,086
|
82.21
|
235
|
17.79
|
851
|
64.42
|
1,321
|
Meade
|
10,355
|
76.53
|
3,176
|
23.47
|
7,179
|
53.06
|
13,531
|
Mellette
|
468
|
60.70
|
303
|
39.30
|
165
|
21.40
|
771
|
Miner
|
807
|
70.42
|
339
|
29.58
|
468
|
40.84
|
1,146
|
Minnehaha
|
52,773
|
57.63
|
38,799
|
42.37
|
13,974
|
15.26
|
91,572
|
Moody
|
1,877
|
58.29
|
1,343
|
41.71
|
534
|
16.58
|
3,220
|
Oglala Lakota
|
510
|
15.93
|
2,691
|
84.07
|
-2,181
|
-68.14
|
3,201
|
Pennington
|
37,694
|
66.27
|
19,184
|
33.73
|
18,510
|
32.54
|
56,878
|
Perkins
|
1,395
|
84.85
|
249
|
15.15
|
1,146
|
69.71
|
1,644
|
Potter
|
1,160
|
83.82
|
224
|
16.18
|
936
|
67.63
|
1,384
|
Roberts
|
2,529
|
58.87
|
1,767
|
41.13
|
762
|
17.74
|
4,296
|
Sanborn
|
898
|
76.17
|
281
|
23.83
|
617
|
52.33
|
1,179
|
Spink
|
2,178
|
68.84
|
986
|
31.16
|
1,192
|
37.67
|
3,164
|
Stanley
|
1,274
|
77.12
|
378
|
22.88
|
896
|
54.24
|
1,652
|
Sully
|
759
|
81.88
|
168
|
18.12
|
591
|
63.75
|
927
|
Todd
|
706
|
28.22
|
1,796
|
71.78
|
-1,090
|
-43.56
|
2,502
|
Tripp
|
2,188
|
81.34
|
502
|
18.66
|
1,686
|
62.68
|
2,690
|
Turner
|
3,416
|
75.21
|
1,126
|
24.79
|
2,290
|
50.42
|
4,542
|
Union
|
6,364
|
72.56
|
2,407
|
27.44
|
3,957
|
45.12
|
8,771
|
Walworth
|
2,040
|
79.53
|
525
|
20.47
|
1,515
|
59.06
|
2,565
|
Yankton
|
6,994
|
64.51
|
3,848
|
35.49
|
3,146
|
29.02
|
10,842
|
Ziebach
|
450
|
49.56
|
458
|
50.44
|
-8
|
-0.88
|
908
|
Totals
|
276,232
|
65.74
|
143,987
|
34.26
|
132,245
|
31.47
|
420,219
|
- Counties that flipped from Democratic to Republican
|