| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 209 | 843 | 1,086 | |
| 2020 | R | 225 | 823 | 1,068 | |
| 2016 | R | 179 | 702 | 946 | |
| 2012 | R | 272 | 693 | 992 | |
| 2008 | R | 289 | 657 | 981 | |
| 2004 | R | 250 | 706 | 979 | |
| 2000 | R | 243 | 708 | 999 | |
| 1996 | R | 391 | 563 | 1,088 | |
| 1992 | R | 384 | 478 | 1,150 | |
| 1988 | R | 443 | 667 | 1,130 | |
| 1984 | R | 407 | 753 | 1,173 | |
| 1980 | R | 381 | 742 | 1,230 | |
| 1976 | R | 535 | 755 | 1,320 | |
| 1972 | R | 445 | 761 | 1,326 | |
| 1968 | R | 525 | 673 | 1,300 | |
| 1964 | D | 790 | 583 | 1,373 | |
| 1960 | R | 724 | 793 | 1,518 | |
| 1956 | R | 578 | 932 | 1,510 | |
| 1952 | R | 572 | 1,026 | 1,607 | |
| 1948 | R | 733 | 780 | 1,533 | |
| 1944 | R | 733 | 767 | 1,516 | |
| 1940 | D | 948 | 786 | 1,742 | |
| 1936 | D | 1,037 | 602 | 1,659 | |
| 1932 | D | 996 | 828 | 1,836 | |
| 1928 | R | 542 | 1,207 | 1,754 | |
| 1924 | R | 221 | 723 | 1,635 | |
| 1920 | R | 520 | 1,250 | 1,817 | |
| 1916 | — | — | — | — | |
| 1912 | — | — | — | — | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
With fewer than 2,300 residents spread across a high-plains wheat-farming landscape, Wheatland County has delivered some of the widest Republican presidential margins in Montana for over a decade, reflecting a pattern common to the state's most sparsely populated agricultural counties.
The Democratic margin in Wheatland County peaked at twenty-six points in 1936. By 1968 the county had flipped, voting Republican for the first time in many years. The 2024 margin was fifty-eight points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Wheatland County's median household income of $49,489 sits well below state and national norms, and 23% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country. The county's voting pattern over the last decade is most similar to that of Lincoln County and Lassen County.