| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 3,920 | 12,041 | 16,425 | |
| 2020 | R | 4,043 | 11,843 | 16,428 | |
| 2016 | R | 2,927 | 10,266 | 14,510 | |
| 2012 | R | 3,618 | 10,267 | 14,322 | |
| 2008 | R | 4,458 | 10,177 | 14,981 | |
| 2004 | R | 4,066 | 9,689 | 14,029 | |
| 2000 | R | 3,330 | 8,424 | 12,236 | |
| 1996 | R | 4,594 | 5,892 | 12,046 | |
| 1992 | R | 4,139 | 4,303 | 11,565 | |
| 1988 | R | 4,655 | 5,980 | 10,778 | |
| 1984 | R | 3,648 | 7,460 | 11,279 | |
| 1980 | R | 3,034 | 5,649 | 9,646 | |
| 1976 | R | 3,206 | 5,382 | 8,652 | |
| 1972 | R | 2,874 | 6,432 | 9,318 | |
| 1968 | R | 2,659 | 5,163 | 8,434 | |
| 1964 | D | 4,747 | 4,491 | 9,238 | |
| 1960 | R | 3,786 | 5,690 | 9,476 | |
| 1956 | R | 3,204 | 5,546 | 8,750 | |
| 1952 | R | 3,124 | 6,522 | 9,655 | |
| 1948 | D | 3,852 | 3,698 | 7,601 | |
| 1944 | D | 3,862 | 3,802 | 7,664 | |
| 1940 | D | 4,439 | 3,814 | 8,268 | |
| 1936 | D | 4,731 | 2,726 | 7,680 | |
| 1932 | D | 4,260 | 2,738 | 7,142 | |
| 1928 | R | 2,563 | 3,616 | 6,250 | |
| 1924 | R | 2,272 | 2,530 | 5,917 | |
| 1920 | R | 1,192 | 2,645 | 4,377 | |
| 1916 | D | 2,906 | 1,914 | 5,048 | |
| 1912 | D | 1,649 | 862 | 4,248 | |
| 1908 | R | 1,539 | 2,158 | 3,924 | |
| 1904 | R | 1,068 | 1,905 | 3,202 | |
| 1900 | R | 985 | 1,018 | 2,044 | |
| 1896 | D | 1,104 | 877 | 1,992 | |
| 1892 | R | 0 | 509 | 1,098 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Sheridan County sits against the Bighorn Mountains in northern Wyoming, where an economy built on ranching, energy, and a small but notable arts community has long produced some of the state's most lopsided Republican presidential margins.
The Republican margin in Sheridan County reached its widest at fifty-one points in 2016. The margin in 2024 was forty-nine points, in line with the county's deep historical pattern.
Sheridan County's loyalty is rooted in its place. Median household income of $71,388, a 91% non-Hispanic-white share, and a population of 32,055 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 Burnet County and Irion County.
