Senate Elections 2012 | US Senate Elections | Montana Races
2012 Montana US Senate Election Results
Jon Tester
Percent: 48.58%
Votes: 236,123
Denny Rehberg
Percent: 44.86%
Votes: 218,051
Race Summary
The 2012 United States Senate election in Montana was held on November 6, 2012, and incumbent Democratic Senator Jon Tester was narrowly reelected to a second term with 48.58% of the vote against Republican Denny Rehberg. Tester’s victory marked a competitive race in a state that simultaneously favored Republican presidential nominee Mitt Romney.
Full Results
Jon Tester (DEM)
Percent: 48.58%
Votes: 236,123
Denny Rehberg (REP)
Percent: 44.86%
Votes: 218,051
Dan Cox (LIB)
Percent: 6.56%
Votes: 31,892
Total votes: 486,066
State Map
Results by County
Beaverhead County
Jon Tester (DEM)
Percent: 31.84%
Votes: 1,532
Denny Rehberg (REP)
Percent: 59.77%
Votes: 2,876
Dan Cox (LIB)
Percent: 8.40%
Votes: 404
Total votes: 4,812
Carbon County
Jon Tester (DEM)
Percent: 45.90%
Votes: 2,691
Denny Rehberg (REP)
Percent: 47.55%
Votes: 2,788
Dan Cox (LIB)
Percent: 6.55%
Votes: 384
Total votes: 5,863
Custer County
Jon Tester (DEM)
Percent: 42.31%
Votes: 2,283
Denny Rehberg (REP)
Percent: 49.31%
Votes: 2,661
Dan Cox (LIB)
Percent: 8.38%
Votes: 452
Total votes: 5,396
Fallon County
Jon Tester (DEM)
Percent: 29.78%
Votes: 422
Denny Rehberg (REP)
Percent: 59.28%
Votes: 840
Dan Cox (LIB)
Percent: 10.94%
Votes: 155
Total votes: 1,417
Garfield County
Jon Tester (DEM)
Percent: 14.31%
Votes: 101
Denny Rehberg (REP)
Percent: 79.04%
Votes: 558
Dan Cox (LIB)
Percent: 6.66%
Votes: 47
Total votes: 706
Hill County
Jon Tester (DEM)
Percent: 58.93%
Votes: 4,060
Denny Rehberg (REP)
Percent: 34.27%
Votes: 2,361
Dan Cox (LIB)
Percent: 6.81%
Votes: 469
Total votes: 6,890
Lewis & Clark County
Jon Tester (DEM)
Percent: 54.34%
Votes: 18,189
Denny Rehberg (REP)
Percent: 40.17%
Votes: 13,446
Dan Cox (LIB)
Percent: 5.49%
Votes: 1,839
Total votes: 33,474
McCone County
Jon Tester (DEM)
Percent: 32.90%
Votes: 332
Denny Rehberg (REP)
Percent: 61.05%
Votes: 616
Dan Cox (LIB)
Percent: 6.05%
Votes: 61
Total votes: 1,009
Musselshell County
Jon Tester (DEM)
Percent: 28.58%
Votes: 684
Denny Rehberg (REP)
Percent: 61.14%
Votes: 1,463
Dan Cox (LIB)
Percent: 10.28%
Votes: 246
Total votes: 2,393
Pondera County
Jon Tester (DEM)
Percent: 43.53%
Votes: 1,187
Denny Rehberg (REP)
Percent: 49.69%
Votes: 1,355
Dan Cox (LIB)
Percent: 6.78%
Votes: 185
Total votes: 2,727
Ravalli County
Jon Tester (DEM)
Percent: 38.65%
Votes: 8,602
Denny Rehberg (REP)
Percent: 53.87%
Votes: 11,990
Dan Cox (LIB)
Percent: 7.48%
Votes: 1,666
Total votes: 22,258
Sanders County
Jon Tester (DEM)
Percent: 34.31%
Votes: 2,044
Denny Rehberg (REP)
Percent: 54.04%
Votes: 3,219
Dan Cox (LIB)
Percent: 11.65%
Votes: 694
Total votes: 5,957
Sweet Grass County
Jon Tester (DEM)
Percent: 31.19%
Votes: 661
Denny Rehberg (REP)
Percent: 62.67%
Votes: 1,328
Dan Cox (LIB)
Percent: 6.13%
Votes: 130
Total votes: 2,119
Valley County
Jon Tester (DEM)
Percent: 44.98%
Votes: 1,749
Denny Rehberg (REP)
Percent: 46.91%
Votes: 1,824
Dan Cox (LIB)
Percent: 8.10%
Votes: 315
Total votes: 3,888
Big Horn County
Jon Tester (DEM)
Percent: 67.39%
Votes: 3,141
Denny Rehberg (REP)
Percent: 28.08%
Votes: 1,309
Dan Cox (LIB)
Percent: 4.53%
Votes: 211
Total votes: 4,661
Carter County
Jon Tester (DEM)
Percent: 15.74%
Votes: 125
Denny Rehberg (REP)
Percent: 77.58%
Votes: 616
Dan Cox (LIB)
Percent: 6.68%
Votes: 53
Total votes: 794
Daniels County
Jon Tester (DEM)
Percent: 32.60%
Votes: 327
Denny Rehberg (REP)
Percent: 60.52%
Votes: 607
Dan Cox (LIB)
Percent: 6.88%
Votes: 69
Total votes: 1,003
Fergus County
Jon Tester (DEM)
Percent: 33.94%
Votes: 2,063
Denny Rehberg (REP)
Percent: 58.12%
Votes: 3,533
Dan Cox (LIB)
Percent: 7.95%
Votes: 483
Total votes: 6,079
Glacier County
Jon Tester (DEM)
Percent: 69.60%
Votes: 3,118
Denny Rehberg (REP)
Percent: 24.84%
Votes: 1,113
Dan Cox (LIB)
Percent: 5.56%
Votes: 249
Total votes: 4,480
Jefferson County
Jon Tester (DEM)
Percent: 40.92%
Votes: 2,685
Denny Rehberg (REP)
Percent: 51.65%
Votes: 3,389
Dan Cox (LIB)
Percent: 7.42%
Votes: 487
Total votes: 6,561
Liberty County
Jon Tester (DEM)
Percent: 36.83%
Votes: 369
Denny Rehberg (REP)
Percent: 57.09%
Votes: 572
Dan Cox (LIB)
Percent: 6.09%
Votes: 61
Total votes: 1,002
Meagher County
Jon Tester (DEM)
Percent: 34.93%
Votes: 342
Denny Rehberg (REP)
Percent: 55.57%
Votes: 544
Dan Cox (LIB)
Percent: 9.50%
Votes: 93
Total votes: 979
Park County
Jon Tester (DEM)
Percent: 48.22%
Votes: 4,260
Denny Rehberg (REP)
Percent: 43.94%
Votes: 3,882
Dan Cox (LIB)
Percent: 7.84%
Votes: 693
Total votes: 8,835
Powder River County
Jon Tester (DEM)
Percent: 23.32%
Votes: 239
Denny Rehberg (REP)
Percent: 70.15%
Votes: 719
Dan Cox (LIB)
Percent: 6.54%
Votes: 67
Total votes: 1,025
Richland County
Jon Tester (DEM)
Percent: 30.18%
Votes: 1,406
Denny Rehberg (REP)
Percent: 62.95%
Votes: 2,933
Dan Cox (LIB)
Percent: 6.87%
Votes: 320
Total votes: 4,659
Sheridan County
Jon Tester (DEM)
Percent: 42.23%
Votes: 812
Denny Rehberg (REP)
Percent: 51.74%
Votes: 995
Dan Cox (LIB)
Percent: 6.03%
Votes: 116
Total votes: 1,923
Teton County
Jon Tester (DEM)
Percent: 40.48%
Votes: 1,341
Denny Rehberg (REP)
Percent: 53.12%
Votes: 1,760
Dan Cox (LIB)
Percent: 6.40%
Votes: 212
Total votes: 3,313
Wheatland County
Jon Tester (DEM)
Percent: 36.79%
Votes: 365
Denny Rehberg (REP)
Percent: 56.35%
Votes: 559
Dan Cox (LIB)
Percent: 6.85%
Votes: 68
Total votes: 992
Blaine County
Jon Tester (DEM)
Percent: 63.88%
Votes: 1,834
Denny Rehberg (REP)
Percent: 31.24%
Votes: 897
Dan Cox (LIB)
Percent: 4.88%
Votes: 140
Total votes: 2,871
Cascade County
Jon Tester (DEM)
Percent: 52.47%
Votes: 18,246
Denny Rehberg (REP)
Percent: 41.96%
Votes: 14,589
Dan Cox (LIB)
Percent: 5.57%
Votes: 1,936
Total votes: 34,771
Dawson County
Jon Tester (DEM)
Percent: 35.46%
Votes: 1,571
Denny Rehberg (REP)
Percent: 56.52%
Votes: 2,504
Dan Cox (LIB)
Percent: 8.01%
Votes: 355
Total votes: 4,430
Flathead County
Jon Tester (DEM)
Percent: 37.17%
Votes: 16,223
Denny Rehberg (REP)
Percent: 55.38%
Votes: 24,171
Dan Cox (LIB)
Percent: 7.45%
Votes: 3,252
Total votes: 43,646
Golden Valley County
Jon Tester (DEM)
Percent: 36.25%
Votes: 174
Denny Rehberg (REP)
Percent: 57.50%
Votes: 276
Dan Cox (LIB)
Percent: 6.25%
Votes: 30
Total votes: 480
Judith Basin County
Jon Tester (DEM)
Percent: 35.94%
Votes: 441
Denny Rehberg (REP)
Percent: 57.13%
Votes: 701
Dan Cox (LIB)
Percent: 6.93%
Votes: 85
Total votes: 1,227
Lincoln County
Jon Tester (DEM)
Percent: 34.62%
Votes: 3,091
Denny Rehberg (REP)
Percent: 56.90%
Votes: 5,080
Dan Cox (LIB)
Percent: 8.48%
Votes: 757
Total votes: 8,928
Mineral County
Jon Tester (DEM)
Percent: 42.66%
Votes: 866
Denny Rehberg (REP)
Percent: 47.44%
Votes: 963
Dan Cox (LIB)
Percent: 9.90%
Votes: 201
Total votes: 2,030
Petroleum County
Jon Tester (DEM)
Percent: 24.41%
Votes: 73
Denny Rehberg (REP)
Percent: 67.56%
Votes: 202
Dan Cox (LIB)
Percent: 8.03%
Votes: 24
Total votes: 299
Powell County
Jon Tester (DEM)
Percent: 41.75%
Votes: 1,167
Denny Rehberg (REP)
Percent: 51.20%
Votes: 1,431
Dan Cox (LIB)
Percent: 7.05%
Votes: 197
Total votes: 2,795
Roosevelt County
Jon Tester (DEM)
Percent: 61.41%
Votes: 2,269
Denny Rehberg (REP)
Percent: 33.42%
Votes: 1,235
Dan Cox (LIB)
Percent: 5.17%
Votes: 191
Total votes: 3,695
Silver Bow County
Jon Tester (DEM)
Percent: 69.29%
Votes: 11,673
Denny Rehberg (REP)
Percent: 24.62%
Votes: 4,148
Dan Cox (LIB)
Percent: 6.09%
Votes: 1,026
Total votes: 16,847
Toole County
Jon Tester (DEM)
Percent: 34.01%
Votes: 721
Denny Rehberg (REP)
Percent: 57.03%
Votes: 1,209
Dan Cox (LIB)
Percent: 8.96%
Votes: 190
Total votes: 2,120
Wibaux County
Jon Tester (DEM)
Percent: 27.39%
Votes: 149
Denny Rehberg (REP)
Percent: 62.32%
Votes: 339
Dan Cox (LIB)
Percent: 10.29%
Votes: 56
Total votes: 544
Broadwater County
Jon Tester (DEM)
Percent: 33.01%
Votes: 995
Denny Rehberg (REP)
Percent: 57.47%
Votes: 1,732
Dan Cox (LIB)
Percent: 9.52%
Votes: 287
Total votes: 3,014
Chouteau County
Jon Tester (DEM)
Percent: 48.19%
Votes: 1,374
Denny Rehberg (REP)
Percent: 46.33%
Votes: 1,321
Dan Cox (LIB)
Percent: 5.47%
Votes: 156
Total votes: 2,851
Deer Lodge County
Jon Tester (DEM)
Percent: 69.55%
Votes: 3,122
Denny Rehberg (REP)
Percent: 23.37%
Votes: 1,049
Dan Cox (LIB)
Percent: 7.08%
Votes: 318
Total votes: 4,489
Gallatin County
Jon Tester (DEM)
Percent: 51.63%
Votes: 24,781
Denny Rehberg (REP)
Percent: 42.47%
Votes: 20,386
Dan Cox (LIB)
Percent: 5.90%
Votes: 2,834
Total votes: 48,001
Granite County
Jon Tester (DEM)
Percent: 38.53%
Votes: 657
Denny Rehberg (REP)
Percent: 52.49%
Votes: 895
Dan Cox (LIB)
Percent: 8.97%
Votes: 153
Total votes: 1,705
Lake County
Jon Tester (DEM)
Percent: 49.25%
Votes: 6,561
Denny Rehberg (REP)
Percent: 42.92%
Votes: 5,717
Dan Cox (LIB)
Percent: 7.83%
Votes: 1,043
Total votes: 13,321
Madison County
Jon Tester (DEM)
Percent: 33.20%
Votes: 1,516
Denny Rehberg (REP)
Percent: 58.91%
Votes: 2,690
Dan Cox (LIB)
Percent: 7.88%
Votes: 360
Total votes: 4,566
Missoula County
Jon Tester (DEM)
Percent: 63.49%
Votes: 36,488
Denny Rehberg (REP)
Percent: 31.64%
Votes: 18,184
Dan Cox (LIB)
Percent: 4.87%
Votes: 2,799
Total votes: 57,471
Phillips County
Jon Tester (DEM)
Percent: 27.20%
Votes: 607
Denny Rehberg (REP)
Percent: 65.64%
Votes: 1,465
Dan Cox (LIB)
Percent: 7.17%
Votes: 160
Total votes: 2,232
Prairie County
Jon Tester (DEM)
Percent: 33.33%
Votes: 236
Denny Rehberg (REP)
Percent: 59.32%
Votes: 420
Dan Cox (LIB)
Percent: 7.34%
Votes: 52
Total votes: 708
Rosebud County
Jon Tester (DEM)
Percent: 48.00%
Votes: 1,704
Denny Rehberg (REP)
Percent: 44.45%
Votes: 1,578
Dan Cox (LIB)
Percent: 7.55%
Votes: 268
Total votes: 3,550
Stillwater County
Jon Tester (DEM)
Percent: 36.66%
Votes: 1,732
Denny Rehberg (REP)
Percent: 56.82%
Votes: 2,684
Dan Cox (LIB)
Percent: 6.52%
Votes: 308
Total votes: 4,724
Treasure County
Jon Tester (DEM)
Percent: 33.98%
Votes: 157
Denny Rehberg (REP)
Percent: 54.55%
Votes: 252
Dan Cox (LIB)
Percent: 11.47%
Votes: 53
Total votes: 462
Yellowstone County
Jon Tester (DEM)
Percent: 47.15%
Votes: 32,565
Denny Rehberg (REP)
Percent: 46.44%
Votes: 32,077
Dan Cox (LIB)
Percent: 6.42%
Votes: 4,432
Total votes: 69,074