| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,543 | 4,058 | 5,794 | |
| 2020 | R | 1,608 | 3,923 | 5,661 | |
| 2016 | R | 1,143 | 3,353 | 4,849 | |
| 2012 | R | 1,371 | 3,289 | 4,812 | |
| 2008 | R | 1,617 | 3,008 | 4,763 | |
| 2004 | R | 1,103 | 3,067 | 4,242 | |
| 2000 | R | 799 | 3,113 | 4,196 | |
| 1996 | R | 1,164 | 2,414 | 4,019 | |
| 1992 | R | 1,098 | 1,746 | 4,160 | |
| 1988 | R | 1,274 | 2,668 | 3,998 | |
| 1984 | R | 942 | 3,044 | 4,035 | |
| 1980 | R | 842 | 2,955 | 4,103 | |
| 1976 | R | 1,013 | 2,461 | 3,543 | |
| 1972 | R | 775 | 2,460 | 3,417 | |
| 1968 | R | 853 | 1,896 | 3,106 | |
| 1964 | R | 1,469 | 1,754 | 3,231 | |
| 1960 | R | 1,307 | 1,731 | 3,043 | |
| 1956 | R | 1,029 | 1,955 | 2,984 | |
| 1952 | R | 920 | 2,196 | 3,128 | |
| 1948 | R | 1,356 | 1,583 | 3,005 | |
| 1944 | R | 1,263 | 1,556 | 2,832 | |
| 1940 | R | 1,632 | 1,725 | 3,371 | |
| 1936 | D | 2,153 | 1,304 | 3,538 | |
| 1932 | D | 1,834 | 1,418 | 3,291 | |
| 1928 | R | 1,144 | 1,906 | 3,064 | |
| 1924 | R | 766 | 1,386 | 2,742 | |
| 1920 | R | 833 | 2,049 | 2,978 | |
| 1916 | D | 1,463 | 1,455 | 3,007 | |
| 1912 | D | 713 | 708 | 1,852 | |
| 1908 | R | 739 | 878 | 1,690 | |
| 1904 | R | 650 | 1,021 | 1,707 | |
| 1900 | D | 937 | 767 | 1,712 | |
| 1896 | D | 1,246 | 154 | 1,407 | |
| 1892 | R | 463 | 729 | 1,367 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Beaverhead spans more than 5,500 square miles of ranching and mining country in southwestern Montana, producing presidential margins that have exceeded 40 points Republican in recent cycles. Its sparse, rural population punches above its weight in shaping statewide totals.
The Republican margin in Beaverhead County reached its widest at fifty-five points in 2000. The margin in 2024 was forty-three points, in line with the county's deep historical pattern.
Beaverhead County's loyalty is rooted in its place. Median household income of $61,268, a 91% non-Hispanic-white share, and a population of 9,713 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 Madison County and Glenn County.