2020 Presidential Primary Election Turnout

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Calculated as a percentage of active voters

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County Active voters Ballots cast Turnout %
Adams 263,502 117,645 44.65%
Alamosa 8,769 4,354 49.65%
Arapahoe 381,383 184,591 48.40%
Archuleta 9,508 5,025 52.85%
Baca 2,563 1,472 57.43%
Bent 2,576 1,392 54.04%
Boulder 218,635 136,425 62.40%
Broomfield 47,864 27,030 56.47%
Chaffee 13,910 8,695 62.51%
Cheyenne 1,233 758 61.48%
Clear Creek 7,157 3,746 52.34%
Conejos 4,907 2,570 52.37%
Costilla 2,451 1,121 45.74%
Crowley 1,988 1,129 56.79%
Custer 3,740 2,320 62.03%
Delta 20,590 11,709 56.87%
Denver 425,397 233,613 54.92%
Dolores 1,548 878 56.72%
Douglas 239,346 118,513 49.52%
Eagle 31,382 14,793 47.14%
El Paso 415,541 200,665 48.29%
Elbert 19,653 10,590 53.88%
Fremont 28,218 14,497 51.38%
Garfield 33,785 16,791 49.70%
Gilpin 4,492 2,281 50.78%
Grand 10,857 5,533 50.96%
Gunnison 11,325 6,265 55.32%
Hinsdale 661 387 58.55%
Huerfano 4,743 2,809 59.22%
Jackson 978 594 60.74%
Jefferson 400,552 220,526 55.06%
Kiowa 969 629 64.91%
Kit Carson 4,387 2,524 57.53%
La Plata 37,941 20,331 53.59%
Lake 4,365 2,040 46.74%
Larimer 236,617 126,009 53.25%
Las Animas 9,122 4,629 50.75%
Lincoln 2,864 1,705 59.53%
Logan 11,440 6,611 57.79%
Mesa 96,838 48,766 50.36%
Mineral 763 496 65.01%
Moffat 7,889 3,820 48.42%
Montezuma 16,978 8,910 52.48%
Montrose 26,386 14,532 55.07%
Morgan 15,765 7,180 45.54%
Otero 11,105 5,635 50.74%
Ouray 4,048 2,555 63.12%
Park 13,121 6,789 51.74%
Phillips 2,680 1,528 57.01%
Pitkin 12,865 6,544 50.87%
Prowers 6,399 3,332 52.07%
Pueblo 101,773 48,285 47.44%
Rio Blanco 4,027 2,368 58.80%
Rio Grande 6,886 3,619 52.56%
Routt 17,655 9,195 52.08%
Saguache 3,914 2,056 52.53%
San Juan 603 317 52.57%
San Miguel 5,515 3,075 55.76%
Sedgwick 1,604 943 58.79%
Summit 20,043 9,346 46.63%
Teller 17,580 9,403 53.49%
Washington 3,044 1,941 63.76%
Weld 181,667 79,408 43.71%
Yuma 5,592 3,087 55.20%
Total 3,511,699 1,806,325 51.44%

Calculated as a percentage of registered voters

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County Registered voters Ballots cast Turnout %
Adams 293,713 117,645 40.05%
Alamosa 10,282 4,354 42.35%
Arapahoe 435,484 184,591 42.39%
Archuleta 11,002 5,025 45.67%
Baca 2,902 1,472 50.72%
Bent 3,177 1,392 43.81%
Boulder 246,269 136,425 55.40%
Broomfield 53,733 27,030 50.30%
Chaffee 15,876 8,695 54.77%
Cheyenne 1,397 758 54.26%
Clear Creek 8,186 3,746 45.76%
Conejos 5,305 2,570 48.44%
Costilla 2,813 1,121 39.85%
Crowley 2,232 1,129 50.58%
Custer 4,185 2,320 55.44%
Delta 22,535 11,709 51.96%
Denver 493,923 233,613 47.30%
Dolores 1,846 878 47.56%
Douglas 261,114 118,513 45.39%
Eagle 35,906 14,793 41.20%
El Paso 478,515 200,665 41.93%
Elbert 21,506 10,590 49.24%
Fremont 31,239 14,497 46.41%
Garfield 38,467 16,791 43.65%
Gilpin 5,353 2,281 42.61%
Grand 12,447 5,533 44.45%
Gunnison 13,553 6,265 46.23%
Hinsdale 761 387 50.85%
Huerfano 5,403 2,809 51.99%
Jackson 1,249 594 47.56%
Jefferson 439,441 220,526 50.18%
Kiowa 1,050 629 59.90%
Kit Carson 4,930 2,524 51.20%
La Plata 45,631 20,331 44.56%
Lake 5,515 2,040 36.99%
Larimer 266,923 126,009 47.21%
Las Animas 11,007 4,629 42.06%
Lincoln 3,253 1,705 52.41%
Logan 12,604 6,611 52.45%
Mesa 112,034 48,766 43.53%
Mineral 879 496 56.43%
Moffat 9,315 3,820 41.01%
Montezuma 19,688 8,910 45.26%
Montrose 29,261 14,532 49.66%
Morgan 17,313 7,180 41.47%
Otero 12,495 5,635 45.10%
Ouray 4,589 2,555 55.68%
Park 15,209 6,789 44.64%
Phillips 3,300 1,528 46.30%
Pitkin 14,456 6,544 45.27%
Prowers 7,327 3,332 45.48%
Pueblo 113,044 48,285 42.71%
Rio Blanco 4,552 2,368 52.02%
Rio Grande 8,036 3,619 45.03%
Routt 20,193 9,195 45.54%
Saguache 4,469 2,056 46.01%
San Juan 721 317 43.97%
San Miguel 6,329 3,075 48.59%
Sedgwick 1,822 943 51.76%
Summit 24,535 9,346 38.09%
Teller 20,530 9,403 45.80%
Washington 3,431 1,941 56.57%
Weld 201,924 79,408 39.33%
Yuma 6,009 3,087 51.37%
Total 3,972,188 1,806,325 45.47%