Senate Elections 2016 | US Senate Elections | South Dakota Races
2016 South Dakota U.S. Senate Election Results


John Thune
Percent: 71.83%
Votes: 265,516
Jay Williams
Percent: 28.17%
Votes: 104,140
Race Summary
On November 8, 2016, incumbent Republican Senator John Thune was re‑elected to a third term, winning approximately 71.83% of the vote compared to 28.17% for his Democratic challenger Jay Williams.
Full Results
John Thune (REP)
Percent: 71.83%
Votes: 265,516
Jay Williams (DEM)
Percent: 28.17%
Votes: 104,140
Total votes: 369,656
State Map

Results by County
Aurora County
John Thune (REP)
Percent: 75.78%
Votes: 1,073
Jay Williams (DEM)
Percent: 24.22%
Votes: 343
Total votes: 1,416
Brookings County
John Thune (REP)
Percent: 69.08%
Votes: 8,817
Jay Williams (DEM)
Percent: 30.92%
Votes: 3,947
Total votes: 12,764
Butte County
John Thune (REP)
Percent: 82.39%
Votes: 3,546
Jay Williams (DEM)
Percent: 17.61%
Votes: 758
Total votes: 4,304
Clay County
John Thune (REP)
Percent: 57.49%
Votes: 2,923
Jay Williams (DEM)
Percent: 42.51%
Votes: 2,161
Total votes: 5,084
Davison County
John Thune (REP)
Percent: 75.15%
Votes: 6,017
Jay Williams (DEM)
Percent: 24.85%
Votes: 1,990
Total votes: 8,007
Douglas County
John Thune (REP)
Percent: 85.79%
Votes: 1,377
Jay Williams (DEM)
Percent: 14.21%
Votes: 228
Total votes: 1,605
Grant County
John Thune (REP)
Percent: 75.24%
Votes: 2,705
Jay Williams (DEM)
Percent: 24.76%
Votes: 890
Total votes: 3,595
Hand County
John Thune (REP)
Percent: 81.91%
Votes: 1,517
Jay Williams (DEM)
Percent: 18.09%
Votes: 335
Total votes: 1,852
Hutchinson County
John Thune (REP)
Percent: 82.02%
Votes: 2,779
Jay Williams (DEM)
Percent: 17.98%
Votes: 609
Total votes: 3,388
Jones County
John Thune (REP)
Percent: 88.06%
Votes: 494
Jay Williams (DEM)
Percent: 11.94%
Votes: 67
Total votes: 561
Lincoln County
John Thune (REP)
Percent: 76.12%
Votes: 19,264
Jay Williams (DEM)
Percent: 23.88%
Votes: 6,043
Total votes: 25,307
McPherson County
John Thune (REP)
Percent: 85.95%
Votes: 1,009
Jay Williams (DEM)
Percent: 14.05%
Votes: 165
Total votes: 1,174
Minnehaha County
John Thune (REP)
Percent: 67.43%
Votes: 52,494
Jay Williams (DEM)
Percent: 32.57%
Votes: 25,359
Total votes: 77,853
Perkins County
John Thune (REP)
Percent: 85.61%
Votes: 1,374
Jay Williams (DEM)
Percent: 14.39%
Votes: 231
Total votes: 1,605
Spink County
John Thune (REP)
Percent: 72.74%
Votes: 2,177
Jay Williams (DEM)
Percent: 27.26%
Votes: 816
Total votes: 2,993
Tripp County
John Thune (REP)
Percent: 81.26%
Votes: 2,134
Jay Williams (DEM)
Percent: 18.74%
Votes: 492
Total votes: 2,626
Yankton County
John Thune (REP)
Percent: 67.93%
Votes: 6,542
Jay Williams (DEM)
Percent: 32.07%
Votes: 3,089
Total votes: 9,631
Beadle County
John Thune (REP)
Percent: 73.62%
Votes: 5,049
Jay Williams (DEM)
Percent: 26.38%
Votes: 1,809
Total votes: 6,858
Brown County
John Thune (REP)
Percent: 70.35%
Votes: 11,371
Jay Williams (DEM)
Percent: 29.65%
Votes: 4,793
Total votes: 16,164
Campbell County
John Thune (REP)
Percent: 89.48%
Votes: 740
Jay Williams (DEM)
Percent: 10.52%
Votes: 87
Total votes: 827
Codington County
John Thune (REP)
Percent: 74.43%
Votes: 8,740
Jay Williams (DEM)
Percent: 25.57%
Votes: 3,003
Total votes: 11,743
Day County
John Thune (REP)
Percent: 65.36%
Votes: 1,815
Jay Williams (DEM)
Percent: 34.64%
Votes: 962
Total votes: 2,777
Edmunds County
John Thune (REP)
Percent: 79.30%
Votes: 1,517
Jay Williams (DEM)
Percent: 20.70%
Votes: 396
Total votes: 1,913
Gregory County
John Thune (REP)
Percent: 79.69%
Votes: 1,671
Jay Williams (DEM)
Percent: 20.31%
Votes: 426
Total votes: 2,097
Hanson County
John Thune (REP)
Percent: 77.02%
Votes: 1,512
Jay Williams (DEM)
Percent: 22.98%
Votes: 451
Total votes: 1,963
Hyde County
John Thune (REP)
Percent: 82.05%
Votes: 567
Jay Williams (DEM)
Percent: 17.95%
Votes: 124
Total votes: 691
Kingsbury County
John Thune (REP)
Percent: 73.80%
Votes: 1,899
Jay Williams (DEM)
Percent: 26.20%
Votes: 674
Total votes: 2,573
Lyman County
John Thune (REP)
Percent: 73.55%
Votes: 1,051
Jay Williams (DEM)
Percent: 26.45%
Votes: 378
Total votes: 1,429
Meade County
John Thune (REP)
Percent: 79.66%
Votes: 9,198
Jay Williams (DEM)
Percent: 20.34%
Votes: 2,348
Total votes: 11,546
Moody County
John Thune (REP)
Percent: 67.15%
Votes: 1,983
Jay Williams (DEM)
Percent: 32.85%
Votes: 970
Total votes: 2,953
Potter County
John Thune (REP)
Percent: 81.12%
Votes: 1,087
Jay Williams (DEM)
Percent: 18.88%
Votes: 253
Total votes: 1,340
Stanley County
John Thune (REP)
Percent: 80.54%
Votes: 1,254
Jay Williams (DEM)
Percent: 19.46%
Votes: 303
Total votes: 1,557
Turner County
John Thune (REP)
Percent: 79.06%
Votes: 3,289
Jay Williams (DEM)
Percent: 20.94%
Votes: 871
Total votes: 4,160
Ziebach County
John Thune (REP)
Percent: 54.96%
Votes: 421
Jay Williams (DEM)
Percent: 45.04%
Votes: 345
Total votes: 766
Bennett County
John Thune (REP)
Percent: 66.49%
Votes: 758
Jay Williams (DEM)
Percent: 33.51%
Votes: 382
Total votes: 1,140
Brule County
John Thune (REP)
Percent: 75.91%
Votes: 1,746
Jay Williams (DEM)
Percent: 24.09%
Votes: 554
Total votes: 2,300
Charles Mix County
John Thune (REP)
Percent: 72.53%
Votes: 2,484
Jay Williams (DEM)
Percent: 27.47%
Votes: 941
Total votes: 3,425
Corson County
John Thune (REP)
Percent: 58.93%
Votes: 680
Jay Williams (DEM)
Percent: 41.07%
Votes: 474
Total votes: 1,154
Deuel County
John Thune (REP)
Percent: 74.54%
Votes: 1,563
Jay Williams (DEM)
Percent: 25.46%
Votes: 534
Total votes: 2,097
Fall River County
John Thune (REP)
Percent: 75.47%
Votes: 2,671
Jay Williams (DEM)
Percent: 24.53%
Votes: 868
Total votes: 3,539
Haakon County
John Thune (REP)
Percent: 91.92%
Votes: 956
Jay Williams (DEM)
Percent: 8.08%
Votes: 84
Total votes: 1,040
Harding County
John Thune (REP)
Percent: 90.24%
Votes: 684
Jay Williams (DEM)
Percent: 9.76%
Votes: 74
Total votes: 758
Jackson County
John Thune (REP)
Percent: 71.39%
Votes: 771
Jay Williams (DEM)
Percent: 28.61%
Votes: 309
Total votes: 1,080
Lake County
John Thune (REP)
Percent: 69.72%
Votes: 4,677
Jay Williams (DEM)
Percent: 30.28%
Votes: 2,031
Total votes: 6,708
Marshall County
John Thune (REP)
Percent: 68.07%
Votes: 1,341
Jay Williams (DEM)
Percent: 31.93%
Votes: 629
Total votes: 1,970
Mellette County
John Thune (REP)
Percent: 67.44%
Votes: 464
Jay Williams (DEM)
Percent: 32.56%
Votes: 224
Total votes: 688
Oglala Lakota County
John Thune (REP)
Percent: 22.81%
Votes: 655
Jay Williams (DEM)
Percent: 77.19%
Votes: 2,217
Total votes: 2,872
Roberts County
John Thune (REP)
Percent: 64.95%
Votes: 2,550
Jay Williams (DEM)
Percent: 35.05%
Votes: 1,376
Total votes: 3,926
Sully County
John Thune (REP)
Percent: 84.07%
Votes: 718
Jay Williams (DEM)
Percent: 15.93%
Votes: 136
Total votes: 854
Union County
John Thune (REP)
Percent: 77.17%
Votes: 6,060
Jay Williams (DEM)
Percent: 22.83%
Votes: 1,793
Total votes: 7,853
Bon Homme County
John Thune (REP)
Percent: 74.53%
Votes: 2,253
Jay Williams (DEM)
Percent: 25.47%
Votes: 770
Total votes: 3,023
Buffalo County
John Thune (REP)
Percent: 47.44%
Votes: 232
Jay Williams (DEM)
Percent: 52.56%
Votes: 257
Total votes: 489
Clark County
John Thune (REP)
Percent: 75.67%
Votes: 1,269
Jay Williams (DEM)
Percent: 24.33%
Votes: 408
Total votes: 1,677
Custer County
John Thune (REP)
Percent: 74.99%
Votes: 3,530
Jay Williams (DEM)
Percent: 25.01%
Votes: 1,177
Total votes: 4,707
Dewey County
John Thune (REP)
Percent: 50.86%
Votes: 862
Jay Williams (DEM)
Percent: 49.14%
Votes: 833
Total votes: 1,695
Faulk County
John Thune (REP)
Percent: 81.79%
Votes: 925
Jay Williams (DEM)
Percent: 18.21%
Votes: 206
Total votes: 1,131
Hamlin County
John Thune (REP)
Percent: 80.78%
Votes: 2,253
Jay Williams (DEM)
Percent: 19.22%
Votes: 536
Total votes: 2,789
Hughes County
John Thune (REP)
Percent: 77.02%
Votes: 6,339
Jay Williams (DEM)
Percent: 22.98%
Votes: 1,891
Total votes: 8,230
Jerauld County
John Thune (REP)
Percent: 73.39%
Votes: 720
Jay Williams (DEM)
Percent: 26.61%
Votes: 261
Total votes: 981
Lawrence County
John Thune (REP)
Percent: 72.39%
Votes: 8,566
Jay Williams (DEM)
Percent: 27.61%
Votes: 3,267
Total votes: 11,833
McCook County
John Thune (REP)
Percent: 77.14%
Votes: 2,021
Jay Williams (DEM)
Percent: 22.86%
Votes: 599
Total votes: 2,620
Miner County
John Thune (REP)
Percent: 73.97%
Votes: 807
Jay Williams (DEM)
Percent: 26.03%
Votes: 284
Total votes: 1,091
Pennington County
John Thune (REP)
Percent: 72.00%
Votes: 33,967
Jay Williams (DEM)
Percent: 28.00%
Votes: 13,207
Total votes: 47,174
Sanborn County
John Thune (REP)
Percent: 78.46%
Votes: 889
Jay Williams (DEM)
Percent: 21.54%
Votes: 244
Total votes: 1,133
Todd County
John Thune (REP)
Percent: 34.48%
Votes: 724
Jay Williams (DEM)
Percent: 65.52%
Votes: 1,376
Total votes: 2,100
Walworth County
John Thune (REP)
Percent: 80.38%
Votes: 1,975
Jay Williams (DEM)
Percent: 19.62%
Votes: 482
Total votes: 2,457