| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 18,718 | 39,457 | 60,258 | |
| 2020 | R | 16,650 | 38,032 | 58,358 | |
| 2016 | R | 8,563 | 21,139 | 46,718 | |
| 2012 | R | 6,244 | 35,039 | 42,293 | |
| 2008 | R | 10,294 | 29,127 | 41,332 | |
| 2004 | R | 6,375 | 32,486 | 39,731 | |
| 2000 | R | 5,170 | 25,920 | 33,142 | |
| 1996 | R | 6,595 | 16,832 | 26,394 | |
| 1992 | R | 4,973 | 15,971 | 30,725 | |
| 1988 | R | 5,871 | 21,766 | 27,963 | |
| 1984 | R | 4,123 | 22,127 | 26,442 | |
| 1980 | R | 3,639 | 20,251 | 25,735 | |
| 1976 | R | 5,430 | 16,636 | 23,194 | |
| 1972 | R | 4,018 | 16,538 | 21,525 | |
| 1968 | R | 4,327 | 11,906 | 17,303 | |
| 1964 | R | 6,627 | 9,326 | 15,953 | |
| 1960 | R | 4,917 | 10,281 | 15,198 | |
| 1956 | R | 3,671 | 10,349 | 14,020 | |
| 1952 | R | 4,242 | 10,167 | 14,409 | |
| 1948 | R | 6,383 | 6,514 | 12,946 | |
| 1944 | D | 6,998 | 4,938 | 11,948 | |
| 1940 | D | 7,867 | 5,184 | 13,058 | |
| 1936 | D | 8,606 | 3,258 | 11,957 | |
| 1932 | D | 6,522 | 4,829 | 11,444 | |
| 1928 | R | 4,748 | 5,297 | 10,071 | |
| 1924 | R | 3,915 | 4,973 | 9,562 | |
| 1920 | R | 4,239 | 5,063 | 9,397 | |
| 1916 | D | 5,305 | 3,756 | 9,142 | |
| 1912 | D | 3,296 | 2,825 | 7,449 | |
| 1908 | R | 3,317 | 3,787 | 7,171 | |
| 1904 | R | 2,948 | 4,008 | 7,045 | |
| 1900 | D | 3,082 | 2,820 | 5,925 | |
| 1896 | D | 4,395 | 839 | 5,234 | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Despite hosting a major land-grant university, Cache County delivers some of Utah's most lopsided Republican margins, suggesting the student population has limited effect on the county's overall partisan tilt.
The Republican margin in Cache County reached its widest at sixty-eight points in 1984. The margin in 2024 was thirty-four points, in line with the county's deep historical pattern.
Cache County's loyalty is rooted in its place. Median household income of $81,665, a 84% non-Hispanic-white share, and a population of 140,046 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 Davis County and Utah County.
