| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 579 | 1,537 | 2,176 | |
| 2020 | R | 638 | 1,419 | 2,102 | |
| 2016 | R | 472 | 1,192 | 1,777 | |
| 2012 | R | 533 | 1,107 | 1,705 | |
| 2008 | R | 601 | 1,013 | 1,715 | |
| 2004 | R | 404 | 1,144 | 1,605 | |
| 2000 | R | 295 | 1,181 | 1,590 | |
| 1996 | R | 429 | 733 | 1,407 | |
| 1992 | R | 358 | 556 | 1,322 | |
| 1988 | R | 511 | 789 | 1,326 | |
| 1984 | R | 417 | 880 | 1,322 | |
| 1980 | R | 439 | 811 | 1,371 | |
| 1976 | R | 509 | 746 | 1,272 | |
| 1972 | R | 422 | 804 | 1,291 | |
| 1968 | R | 502 | 626 | 1,263 | |
| 1964 | D | 658 | 527 | 1,187 | |
| 1960 | R | 592 | 722 | 1,323 | |
| 1956 | R | 533 | 896 | 1,429 | |
| 1952 | R | 473 | 923 | 1,401 | |
| 1948 | R | 567 | 659 | 1,268 | |
| 1944 | R | 574 | 702 | 1,288 | |
| 1940 | D | 917 | 784 | 1,710 | |
| 1936 | D | 1,227 | 475 | 1,724 | |
| 1932 | D | 855 | 536 | 1,439 | |
| 1928 | R | 509 | 849 | 1,366 | |
| 1924 | R | 353 | 582 | 1,339 | |
| 1920 | R | 439 | 949 | 1,478 | |
| 1916 | D | 812 | 574 | 1,479 | |
| 1912 | D | 346 | 195 | 889 | |
| 1908 | D | 485 | 369 | 912 | |
| 1904 | R | 521 | 576 | 1,166 | |
| 1900 | D | 1,020 | 401 | 1,435 | |
| 1896 | D | 1,746 | 61 | 1,814 | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Granite County sits in the Flint Creek Range with an economy historically rooted in mining and ranching. Its small, dispersed population has delivered some of Montana's widest presidential margins for over two decades.
The Democratic margin in Granite County peaked at ninety-three points in 1896. By 1968 the county had flipped, voting Republican for the first time in many years. The 2024 margin was forty-four points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Granite County's median household income of $59,265 sits well below state and national norms, and 10% 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 Flathead County and Douglas County.
