Elections / 1984 · President · CO
Colorado — 1984 presidential election
Recent presidential results
Akashicstate1984 presidential electionColorado · PresidentReaganR+28.3
How it voted
Share of the 1984 vote
| Ronald Reagan ✓Republican | 63.4% | 821,817 |
|---|---|---|
| Walter MondaleDemocratic | 35.1% | 454,975 |
| OtherAll other candidates | 1.4% | 18,566 |
1984presidential margin
D+60R+60
63 counties, each filled by 1984 D-vs-R margin. Hover any county for its result.
Colorado cast 8 electoral votes this cycle.
County-level results (63 counties) — table
| County | Winner | Margin |
|---|---|---|
| Adams County, CO | Republican | R+21.6 |
| Alamosa County, CO | Republican | R+26.2 |
| Arapahoe County, CO | Republican | R+45.2 |
| Archuleta County, CO | Republican | R+45.0 |
| Baca County, CO | Republican | R+52.7 |
| Bent County, CO | Republican | R+20.7 |
| Boulder County, CO | Republican | R+11.7 |
| Chaffee County, CO | Republican | R+34.3 |
| Cheyenne County, CO | Republican | R+48.0 |
| Clear Creek County, CO | Republican | R+32.3 |
| Conejos County, CO | Republican | R+3.6 |
| Costilla County, CO | Democratic | D+23.1 |
| Crowley County, CO | Republican | R+31.2 |
| Custer County, CO | Republican | R+54.1 |
| Delta County, CO | Republican | R+39.9 |
| Denver County, CO | Democratic | D+2.3 |
| Dolores County, CO | Republican | R+58.1 |
| Douglas County, CO | Republican | R+59.8 |
| Eagle County, CO | Republican | R+37.2 |
| El Paso County, CO | Republican | R+51.1 |
| Elbert County, CO | Republican | R+52.1 |
| Fremont County, CO | Republican | R+35.5 |
| Garfield County, CO | Republican | R+39.2 |
| Gilpin County, CO | Republican | R+16.7 |
| Grand County, CO | Republican | R+46.9 |
| Gunnison County, CO | Republican | R+36.4 |
| Hinsdale County, CO | Republican | R+51.2 |
| Huerfano County, CO | Democratic | D+0.7 |
| Jackson County, CO | Republican | R+57.5 |
| Jefferson County, CO | Republican | R+39.2 |
| Kiowa County, CO | Republican | R+51.8 |
| Kit Carson County, CO | Republican | R+55.4 |
| La Plata County, CO | Republican | R+36.2 |
| Lake County, CO | Republican | R+1.5 |
| Larimer County, CO | Republican | R+34.7 |
| Las Animas County, CO | Democratic | D+10.1 |
| Lincoln County, CO | Republican | R+47.1 |
| Logan County, CO | Republican | R+45.8 |
| Mesa County, CO | Republican | R+40.5 |
| Mineral County, CO | Republican | R+47.1 |
| Moffat County, CO | Republican | R+48.2 |
| Montezuma County, CO | Republican | R+47.5 |
| Montrose County, CO | Republican | R+42.2 |
| Morgan County, CO | Republican | R+44.0 |
| Otero County, CO | Republican | R+27.5 |
| Ouray County, CO | Republican | R+42.5 |
| Park County, CO | Republican | R+43.4 |
| Phillips County, CO | Republican | R+43.9 |
| Pitkin County, CO | Republican | R+14.9 |
| Prowers County, CO | Republican | R+39.9 |
| Pueblo County, CO | Democratic | D+4.8 |
| Rio Blanco County, CO | Republican | R+62.5 |
| Rio Grande County, CO | Republican | R+47.3 |
| Routt County, CO | Republican | R+34.1 |
| Saguache County, CO | Republican | R+16.0 |
| San Juan County, CO | Republican | R+26.4 |
| San Miguel County, CO | Republican | R+11.8 |
| Sedgwick County, CO | Republican | R+45.3 |
| Summit County, CO | Republican | R+33.9 |
| Teller County, CO | Republican | R+53.0 |
| Washington County, CO | Republican | R+56.3 |
| Weld County, CO | Republican | R+38.2 |
| Yuma County, CO | Republican | R+49.8 |
Nominees: Walter Mondale (D) · Ronald Reagan (R)
Colorado's presidential margins
1892–2024, the 1984 contest in context
| Year | Margin (D minus R) |
|---|---|
| 1892 | −41.1% |
| 1896 | +70.6% |
| 1900 | +13.6% |
| 1904 | −14.2% |
| 1908 | +1.1% |
| 1912 | +20.9% |
| 1916 | +26.0% |
| 1920 | −23.4% |
| 1924 | −35.0% |
| 1928 | −30.8% |
| 1932 | +13.4% |
| 1936 | +23.3% |
| 1940 | −2.6% |
| 1944 | −6.8% |
| 1948 | +5.4% |
| 1952 | −21.3% |
| 1956 | −19.7% |
| 1960 | −9.7% |
| 1964 | +23.1% |
| 1968 | −9.2% |
| 1972 | −28.0% |
| 1976 | −11.5% |
| 1980 | −24.0% |
| 1984 | −28.3% |
| 1988 | −7.8% |
| 1992 | +4.3% |
| 1996 | −1.4% |
| 2000 | −8.4% |
| 2004 | −4.7% |
| 2008 | +9.0% |
| 2012 | +5.4% |
| 2016 | +4.9% |
| 2020 | +13.5% |
| 2024 | +11.0% |
County-by-county results — 63 counties
| County | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| Adams County | R | 35,285 | 55,092 | 91,511 | |
| Alamosa County | R | 1,720 | 2,953 | 4,711 | |
| Arapahoe County | R | 39,891 | 107,556 | 149,554 | |
| Archuleta County | R | 584 | 1,557 | 2,163 | |
| Baca County | R | 580 | 1,903 | 2,509 | |
| Bent County | R | 859 | 1,314 | 2,199 | |
| Boulder County | R | 42,195 | 53,535 | 97,223 | |
| Chaffee County | R | 1,779 | 3,680 | 5,550 | |
| Cheyenne County | R | 307 | 892 | 1,218 | |
| Clear Creek County | R | 1,089 | 2,151 | 3,292 | |
| Conejos County | R | 1,553 | 1,669 | 3,247 | |
| Costilla County | D | 997 | 621 | 1,631 | |
| Crowley County | R | 517 | 993 | 1,527 | |
| Custer County | R | 241 | 832 | 1,093 | |
| Delta County | R | 2,835 | 6,678 | 9,639 | |
| Denver County | D | 110,200 | 105,096 | 219,738 | |
| Dolores County | R | 173 | 667 | 850 | |
| Douglas County | R | 3,011 | 12,249 | 15,441 | |
| Eagle County | R | 2,032 | 4,500 | 6,633 | |
| El Paso County | R | 28,185 | 88,377 | 117,772 | |
| Elbert County | R | 802 | 2,605 | 3,461 | |
| Fremont County | R | 3,895 | 8,250 | 12,256 | |
| Garfield County | R | 3,076 | 7,111 | 10,285 | |
| Gilpin County | R | 634 | 896 | 1,571 | |
| Grand County | R | 1,017 | 2,865 | 3,940 | |
| Gunnison County | R | 1,424 | 3,100 | 4,605 | |
| Hinsdale County | R | 98 | 310 | 414 | |
| Huerfano County | D | 1,602 | 1,581 | 3,224 | |
| Jackson County | R | 191 | 722 | 923 | |
| Jefferson County | R | 53,700 | 124,496 | 180,628 | |
| Kiowa County | R | 265 | 850 | 1,130 | |
| Kit Carson County | R | 778 | 2,762 | 3,584 | |
| La Plata County | R | 4,040 | 8,719 | 12,918 | |
| Lake County | R | 1,324 | 1,364 | 2,747 | |
| Larimer County | R | 23,896 | 49,883 | 74,848 | |
| Las Animas County | D | 3,670 | 2,992 | 6,742 | |
| Lincoln County | R | 587 | 1,661 | 2,278 | |
| Logan County | R | 2,155 | 5,883 | 8,133 | |
| Mesa County | R | 9,938 | 23,736 | 34,074 | |
| Mineral County | R | 117 | 333 | 459 | |
| Moffat County | R | 1,228 | 3,630 | 4,981 | |
| Montezuma County | R | 1,665 | 4,753 | 6,506 | |
| Montrose County | R | 2,864 | 7,162 | 10,173 | |
| Morgan County | R | 2,331 | 6,097 | 8,556 | |
| Otero County | R | 3,005 | 5,373 | 8,615 | |
| Ouray County | R | 366 | 914 | 1,290 | |
| Park County | R | 782 | 2,041 | 2,902 | |
| Phillips County | R | 651 | 1,689 | 2,367 | |
| Pitkin County | R | 2,293 | 3,117 | 5,528 | |
| Prowers County | R | 1,467 | 3,501 | 5,095 | |
| Pueblo County | D | 27,126 | 24,634 | 52,200 | |
| Rio Blanco County | R | 484 | 2,131 | 2,637 | |
| Rio Grande County | R | 1,104 | 3,122 | 4,262 | |
| Routt County | R | 2,051 | 4,239 | 6,408 | |
| Saguache County | R | 867 | 1,201 | 2,084 | |
| San Juan County | R | 183 | 320 | 519 | |
| San Miguel County | R | 654 | 833 | 1,521 | |
| Sedgwick County | R | 429 | 1,146 | 1,583 | |
| Summit County | R | 1,588 | 3,253 | 4,918 | |
| Teller County | R | 1,043 | 3,460 | 4,562 | |
| Washington County | R | 568 | 2,080 | 2,684 | |
| Weld County | R | 13,863 | 31,293 | 45,679 | |
| Yuma County | R | 1,121 | 3,394 | 4,567 |
Same ballot, 1984CO
Source. MIT Election Data + Science Lab — 1984 presidential returns · official county-level results. Real returns — nothing estimated.