| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,353 | 4,719 | 7,297 | |
| 2020 | R | 2,421 | 4,468 | 7,052 | |
| 2016 | R | 1,828 | 3,748 | 5,991 | |
| 2012 | R | 2,146 | 3,533 | 5,847 | |
| 2008 | R | 2,443 | 3,108 | 5,746 | |
| 2004 | R | 1,847 | 3,342 | 5,321 | |
| 2000 | R | 1,434 | 3,008 | 4,789 | |
| 1996 | R | 1,854 | 2,147 | 4,762 | |
| 1992 | R | 1,549 | 1,562 | 4,620 | |
| 1988 | R | 2,039 | 2,360 | 4,470 | |
| 1984 | R | 1,657 | 2,877 | 4,587 | |
| 1980 | R | 1,468 | 2,471 | 4,363 | |
| 1976 | R | 1,853 | 2,121 | 4,045 | |
| 1972 | R | 1,292 | 2,378 | 3,841 | |
| 1968 | R | 1,353 | 1,972 | 3,587 | |
| 1964 | D | 2,098 | 1,535 | 3,633 | |
| 1960 | R | 1,903 | 2,050 | 3,961 | |
| 1956 | R | 1,820 | 2,345 | 4,165 | |
| 1952 | R | 1,713 | 2,734 | 4,470 | |
| 1948 | D | 1,997 | 1,901 | 4,169 | |
| 1944 | R | 2,073 | 2,126 | 4,230 | |
| 1940 | D | 2,678 | 2,421 | 5,161 | |
| 1936 | D | 3,116 | 1,617 | 4,876 | |
| 1932 | D | 2,872 | 1,942 | 5,076 | |
| 1928 | R | 1,674 | 2,514 | 4,327 | |
| 1924 | R | 698 | 1,891 | 4,266 | |
| 1920 | R | 1,107 | 2,700 | 4,214 | |
| 1916 | D | 1,926 | 1,708 | 4,013 | |
| 1912 | D | 796 | 646 | 2,596 | |
| 1908 | R | 844 | 1,205 | 2,317 | |
| 1904 | R | 464 | 1,130 | 1,913 | |
| 1900 | R | 907 | 930 | 1,866 | |
| 1896 | D | 739 | 365 | 1,104 | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Carbon County's economy runs on agriculture and coal extraction along the Wyoming border, producing some of Montana's most consistent Republican margins — the 2024 presidential gap exceeded 32 points in a county of under 10,000 residents.
The Republican margin in Carbon County reached its widest at thirty-eight points in 1920. The margin in 2024 was thirty-two points, in line with the county's deep historical pattern.
Carbon County's loyalty is rooted in its place. Median household income of $80,261, a 91% non-Hispanic-white share, and a population of 11,116 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 Jefferson County and Powell County.
