| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 713 | 5,558 | 6,387 | |
| 2020 | R | 624 | 5,404 | 6,190 | |
| 2016 | R | 431 | 3,860 | 5,269 | |
| 2012 | R | 431 | 4,478 | 5,055 | |
| 2008 | R | 758 | 3,653 | 4,739 | |
| 2004 | R | 626 | 4,084 | 4,877 | |
| 2000 | R | 696 | 3,850 | 4,775 | |
| 1996 | R | 945 | 2,681 | 4,236 | |
| 1992 | R | 742 | 2,496 | 4,770 | |
| 1988 | R | 1,124 | 3,515 | 4,710 | |
| 1984 | R | 1,192 | 4,345 | 5,563 | |
| 1980 | R | 795 | 3,620 | 4,537 | |
| 1976 | R | 1,224 | 2,484 | 3,963 | |
| 1972 | R | 777 | 2,689 | 3,815 | |
| 1968 | R | 971 | 2,318 | 3,509 | |
| 1964 | R | 1,462 | 1,973 | 3,435 | |
| 1960 | R | 1,425 | 2,248 | 3,676 | |
| 1956 | R | 1,193 | 2,667 | 3,860 | |
| 1952 | R | 1,299 | 2,994 | 4,293 | |
| 1948 | R | 1,817 | 2,184 | 4,029 | |
| 1944 | D | 1,909 | 1,889 | 3,803 | |
| 1940 | D | 2,302 | 1,943 | 4,255 | |
| 1936 | D | 2,313 | 1,466 | 3,833 | |
| 1932 | R | 1,881 | 1,916 | 3,855 | |
| 1928 | R | 1,440 | 2,263 | 3,720 | |
| 1924 | R | 1,025 | 1,917 | 3,439 | |
| 1920 | R | 1,167 | 2,199 | 3,515 | |
| 1916 | D | 1,804 | 1,293 | 3,208 | |
| 1912 | R | 865 | 970 | 2,360 | |
| 1908 | R | 765 | 1,011 | 1,814 | |
| 1904 | R | 683 | 1,001 | 1,690 | |
| 1900 | R | 844 | 938 | 1,785 | |
| 1896 | D | 1,384 | 166 | 1,550 | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Millard County's vast rangelands and sparse population of roughly 12,000 produce some of the most one-sided federal election results in Utah, with the 2024 presidential contest finishing at R+75 — a margin wider than nearly any other county in the state.
The Republican margin in Millard County reached its widest at eighty points in 2012. The margin in 2024 was seventy-six points, in line with the county's deep historical pattern.
Millard County's loyalty is rooted in its place. Median household income of $73,639, a 85% non-Hispanic-white share, and a population of 13,315 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 Sevier County and Bingham County.
