# 1980 United States presidential election in Montana

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The 1980 United States presidential election in Montana took place on November 4, 1980, and was part of the 1980 United States presidential election. Voters chose four representatives, or electors to the Electoral College, who voted for president and vice president.
Montana overwhelmingly voted for the Republican nominee, Governor Ronald Reagan, over the Democratic nominee, President Jimmy Carter. Reagan won Montana by a landslide margin of 24.39%. This was the last presidential election until 2024 in which Big Horn County voted for the Republican candidate.

## Results

1980 United States presidential election in Montana :
| Party | Party | Candidate | Votes | Percentage | Electoral votes |
| | Republican | Ronald Reagan | 206,814 | 56.82% | 4 |
| | Democratic | Jimmy Carter (incumbent) | 118,032 | 32.43% | 0 |
| | Independent | John B. Anderson | 29,281 | 8.05% | 0 |
| | Libertarian | Ed Clark | 9,825 | 2.70% | 0 |
| Totals | Totals | Totals | 363,952 | 100.00% | 4 |

### Results by county

| County | Ronald Reagan Republican | Ronald Reagan Republican | Jimmy Carter Democratic | Jimmy Carter Democratic | John B. Anderson Independent | John B. Anderson Independent | Ed Clark Libertarian | Ed Clark Libertarian | Margin | Margin | Total votes cast |
| County | # | % | # | % | # | % | # | % | # | % | Total votes cast |
| Beaverhead | 2,955 | 72.02% | 842 | 20.52% | 205 | 5.00% | 101 | 2.46% | 2,113 | 51.50% | 4,103 |
| Big Horn | 1,730 | 46.32% | 1,644 | 44.02% | 308 | 8.25% | 53 | 1.42% | 86 | 2.30% | 3,735 |
| Blaine | 1,686 | 56.29% | 1,107 | 36.96% | 163 | 5.44% | 39 | 1.30% | 579 | 19.33% | 2,995 |
| Broadwater | 1,052 | 67.26% | 401 | 25.64% | 69 | 4.41% | 42 | 2.69% | 651 | 41.62% | 1,564 |
| Carbon | 2,471 | 56.64% | 1,468 | 33.65% | 331 | 7.59% | 93 | 2.13% | 1,003 | 22.99% | 4,363 |
| Carter | 766 | 72.40% | 237 | 22.40% | 37 | 3.50% | 18 | 1.70% | 529 | 50.00% | 1,058 |
| Cascade | 17,664 | 54.80% | 11,105 | 34.45% | 2,655 | 8.24% | 810 | 2.51% | 6,559 | 20.35% | 32,234 |
| Chouteau | 2,448 | 68.32% | 853 | 23.81% | 216 | 6.03% | 66 | 1.84% | 1,595 | 44.51% | 3,583 |
| Custer | 3,533 | 60.75% | 1,822 | 31.33% | 369 | 6.34% | 92 | 1.58% | 1,711 | 29.42% | 5,816 |
| Daniels | 1,086 | 65.19% | 483 | 28.99% | 77 | 4.62% | 20 | 1.20% | 603 | 36.20% | 1,666 |
| Dawson | 3,045 | 59.50% | 1,543 | 30.15% | 424 | 8.28% | 106 | 2.07% | 1,502 | 29.35% | 5,118 |
| Deer Lodge | 1,905 | 33.79% | 3,077 | 54.58% | 474 | 8.41% | 182 | 3.23% | -1,172 | -20.79% | 5,638 |
| Fallon | 1,286 | 66.98% | 512 | 26.67% | 94 | 4.90% | 28 | 1.46% | 774 | 40.31% | 1,920 |
| Fergus | 4,455 | 65.02% | 1,840 | 26.85% | 388 | 5.66% | 169 | 2.47% | 2,615 | 38.17% | 6,852 |
| Flathead | 15,102 | 63.54% | 6,349 | 26.71% | 1,621 | 6.82% | 695 | 2.92% | 8,753 | 36.83% | 23,767 |
| Gallatin | 12,738 | 58.63% | 5,747 | 26.45% | 2,432 | 11.19% | 809 | 3.72% | 6,991 | 32.18% | 21,726 |
| Garfield | 760 | 78.03% | 169 | 17.35% | 29 | 2.98% | 16 | 1.64% | 591 | 60.68% | 974 |
| Glacier | 2,283 | 55.78% | 1,394 | 34.06% | 297 | 7.26% | 119 | 2.91% | 889 | 21.72% | 4,093 |
| Golden Valley | 362 | 65.11% | 155 | 27.88% | 28 | 5.04% | 11 | 1.98% | 207 | 37.23% | 556 |
| Granite | 811 | 59.15% | 439 | 32.02% | 76 | 5.54% | 45 | 3.28% | 372 | 27.13% | 1,371 |
| Hill | 4,448 | 54.99% | 2,875 | 35.54% | 604 | 7.47% | 162 | 2.00% | 1,573 | 19.45% | 8,089 |
| Jefferson | 1,841 | 57.12% | 1,055 | 32.73% | 216 | 6.70% | 111 | 3.44% | 786 | 24.39% | 3,223 |
| Judith Basin | 1,030 | 63.31% | 480 | 29.50% | 93 | 5.72% | 24 | 1.48% | 550 | 33.81% | 1,627 |
| Lake | 5,083 | 59.58% | 2,615 | 30.65% | 573 | 6.72% | 261 | 3.06% | 2,468 | 28.93% | 8,532 |
| Lewis and Clark | 12,128 | 57.18% | 6,815 | 32.13% | 1,793 | 8.45% | 476 | 2.24% | 5,313 | 25.05% | 21,212 |
| Liberty | 872 | 69.43% | 283 | 22.53% | 71 | 5.65% | 30 | 2.39% | 589 | 46.90% | 1,256 |
| Lincoln | 4,202 | 57.19% | 2,422 | 32.96% | 485 | 6.60% | 239 | 3.25% | 1,780 | 24.23% | 7,348 |
| McCone | 1,000 | 67.98% | 349 | 23.73% | 86 | 5.85% | 36 | 2.45% | 651 | 44.25% | 1,471 |
| Madison | 2,220 | 70.59% | 676 | 21.49% | 174 | 5.53% | 75 | 2.38% | 1,544 | 49.10% | 3,145 |
| Meagher | 689 | 69.60% | 247 | 24.95% | 41 | 4.14% | 13 | 1.31% | 442 | 44.65% | 990 |
| Mineral | 800 | 48.28% | 660 | 39.83% | 138 | 8.33% | 59 | 3.56% | 140 | 8.45% | 1,657 |
| Missoula | 16,161 | 46.72% | 13,115 | 37.91% | 3,847 | 11.12% | 1,471 | 4.25% | 3,046 | 8.81% | 34,594 |
| Musselshell | 1,279 | 58.03% | 784 | 35.57% | 106 | 4.81% | 35 | 1.59% | 495 | 22.46% | 2,204 |
| Park | 3,929 | 63.42% | 1,663 | 26.84% | 459 | 7.41% | 144 | 2.32% | 2,266 | 36.58% | 6,195 |
| Petroleum | 225 | 65.98% | 90 | 26.39% | 15 | 4.40% | 11 | 3.23% | 135 | 39.59% | 341 |
| Phillips | 1,723 | 64.95% | 745 | 28.08% | 146 | 5.50% | 39 | 1.47% | 978 | 36.87% | 2,653 |
| Pondera | 2,270 | 66.14% | 897 | 26.14% | 207 | 6.03% | 58 | 1.69% | 1,373 | 40.00% | 3,432 |
| Powder River | 985 | 68.26% | 336 | 23.28% | 94 | 6.51% | 28 | 1.94% | 649 | 44.98% | 1,443 |
| Powell | 1,770 | 59.14% | 883 | 29.50% | 198 | 6.62% | 142 | 4.74% | 887 | 29.64% | 2,993 |
| Prairie | 580 | 62.57% | 283 | 30.53% | 57 | 6.15% | 7 | 0.76% | 297 | 32.04% | 927 |
| Ravalli | 7,268 | 63.73% | 3,063 | 26.86% | 743 | 6.52% | 330 | 2.89% | 4,205 | 36.87% | 11,404 |
| Richland | 3,348 | 66.45% | 1,252 | 24.85% | 343 | 6.81% | 95 | 1.89% | 2,096 | 41.60% | 5,038 |
| Roosevelt | 2,298 | 55.24% | 1,504 | 36.15% | 304 | 7.31% | 54 | 1.30% | 794 | 19.09% | 4,160 |
| Rosebud | 1,875 | 54.46% | 1,167 | 33.89% | 265 | 7.70% | 136 | 3.95% | 708 | 20.57% | 3,443 |
| Sanders | 2,194 | 54.86% | 1,395 | 34.88% | 291 | 7.28% | 119 | 2.98% | 799 | 19.98% | 3,999 |
| Sheridan | 1,658 | 56.94% | 955 | 32.80% | 247 | 8.48% | 52 | 1.79% | 703 | 24.14% | 2,912 |
| Silver Bow | 7,301 | 37.68% | 9,721 | 50.17% | 1,752 | 9.04% | 603 | 3.11% | -2,420 | -12.49% | 19,377 |
| Stillwater | 1,828 | 61.26% | 919 | 30.80% | 181 | 6.07% | 56 | 1.88% | 909 | 30.46% | 2,984 |
| Sweet Grass | 1,169 | 67.22% | 440 | 25.30% | 98 | 5.64% | 32 | 1.84% | 729 | 41.92% | 1,739 |
| Teton | 2,415 | 67.76% | 902 | 25.31% | 186 | 5.22% | 61 | 1.71% | 1,513 | 42.45% | 3,564 |
| Toole | 2,000 | 70.18% | 634 | 22.25% | 154 | 5.40% | 62 | 2.18% | 1,366 | 47.93% | 2,850 |
| Treasure | 321 | 57.94% | 181 | 32.67% | 34 | 6.14% | 18 | 3.25% | 140 | 25.27% | 554 |
| Valley | 3,242 | 62.47% | 1,567 | 30.19% | 264 | 5.09% | 117 | 2.25% | 1,675 | 32.28% | 5,190 |
| Wheatland | 742 | 60.33% | 381 | 30.98% | 88 | 7.15% | 19 | 1.54% | 361 | 29.35% | 1,230 |
| Wibaux | 450 | 61.56% | 219 | 29.96% | 45 | 6.16% | 17 | 2.33% | 231 | 31.60% | 731 |
| Yellowstone | 27,332 | 56.57% | 15,272 | 31.61% | 4,590 | 9.50% | 1,119 | 2.32% | 12,060 | 24.96% | 48,313 |
| Totals | 206,814 | 56.82% | 118,032 | 32.43% | 29,281 | 8.05% | 9,825 | 2.70% | 88,782 | 24.39% | 363,952 |

#### Counties that flipped from Democratic to Republican

* Big Horn
* Blaine
* Hill
* Lincoln
* McCone
* Mineral
* Roosevelt
* Sheridan
* Wibaux