| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 68,752 | 106,469 | 179,921 | |
| 2020 | R | 66,050 | 96,133 | 166,946 | |
| 2016 | R | 46,519 | 76,651 | 135,430 | |
| 2012 | R | 49,050 | 63,775 | 116,291 | |
| 2008 | R | 47,292 | 56,526 | 105,866 | |
| 2004 | R | 31,868 | 55,591 | 88,653 | |
| 2000 | R | 23,436 | 37,409 | 64,541 | |
| 1996 | R | 21,325 | 26,518 | 53,390 | |
| 1992 | R | 19,295 | 20,958 | 54,029 | |
| 1988 | R | 20,548 | 26,497 | 47,807 | |
| 1984 | R | 13,863 | 31,293 | 45,679 | |
| 1980 | R | 11,433 | 23,901 | 40,646 | |
| 1976 | R | 16,501 | 21,976 | 39,702 | |
| 1972 | R | 11,690 | 24,695 | 37,255 | |
| 1968 | R | 10,420 | 17,101 | 29,865 | |
| 1964 | D | 17,268 | 12,204 | 29,679 | |
| 1960 | R | 11,179 | 17,558 | 28,790 | |
| 1956 | R | 10,170 | 17,228 | 27,455 | |
| 1952 | R | 8,890 | 18,002 | 27,096 | |
| 1948 | R | 10,934 | 12,446 | 23,639 | |
| 1944 | R | 8,459 | 14,546 | 23,086 | |
| 1940 | R | 10,653 | 16,129 | 27,009 | |
| 1936 | D | 12,993 | 9,606 | 23,296 | |
| 1932 | D | 11,182 | 10,754 | 22,945 | |
| 1928 | R | 5,762 | 13,719 | 19,717 | |
| 1924 | R | 3,406 | 10,185 | 16,250 | |
| 1920 | R | 5,202 | 10,268 | 16,100 | |
| 1916 | D | 8,600 | 5,395 | 14,533 | |
| 1912 | D | 4,713 | 3,114 | 11,368 | |
| 1908 | R | 4,650 | 5,537 | 10,846 | |
| 1904 | R | 2,555 | 4,833 | 7,780 | |
| 1900 | D | 3,386 | 2,786 | 6,486 | |
| 1896 | D | 4,620 | 874 | 5,625 | |
| 1892 | R | 0 | 1,138 | 2,769 | |
| 1888 | R | 1,036 | 1,942 | 3,374 | |
| 1884 | R | 765 | 1,332 | 2,490 | |
| 1880 | R | 373 | 804 | 1,429 | |
| 1876 | — | — | — | — |
Weld County's economy is anchored by cattle ranching, sugar beets, and one of the nation's most productive onshore oil fields, a mix that has kept it among Colorado's most reliably Republican counties even as the state's Front Range has shifted toward Democrats.
The Republican margin in Weld County reached its widest at forty-two points in 1924. The margin in 2024 was twenty-one points, in line with the county's deep historical pattern.
Weld County's loyalty is rooted in its place. Median household income of $97,097, a 73% non-Hispanic-white share, and a population of 350,396 together describe a community whose political habits are deeply settled. The county's voting pattern over the last decade is most similar to that of Josephine County and Mariposa County.
