| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 173 | 634 | 834 | |
| 2020 | R | 175 | 681 | 876 | |
| 2016 | R | 171 | 629 | 861 | |
| 2012 | R | 216 | 600 | 848 | |
| 2008 | R | 277 | 624 | 913 | |
| 2004 | R | 210 | 710 | 934 | |
| 2000 | R | 173 | 682 | 925 | |
| 1996 | R | 222 | 486 | 833 | |
| 1992 | R | 216 | 422 | 966 | |
| 1988 | R | 294 | 584 | 891 | |
| 1984 | R | 191 | 722 | 923 | |
| 1980 | R | 283 | 673 | 1,059 | |
| 1976 | R | 279 | 455 | 748 | |
| 1972 | R | 178 | 623 | 812 | |
| 1968 | R | 177 | 474 | 702 | |
| 1964 | D | 384 | 354 | 741 | |
| 1960 | R | 360 | 504 | 865 | |
| 1956 | R | 297 | 594 | 892 | |
| 1952 | R | 305 | 579 | 886 | |
| 1948 | R | 291 | 327 | 618 | |
| 1944 | R | 252 | 463 | 715 | |
| 1940 | R | 357 | 526 | 888 | |
| 1936 | D | 433 | 419 | 886 | |
| 1932 | D | 415 | 390 | 822 | |
| 1928 | R | 249 | 401 | 666 | |
| 1924 | R | 111 | 394 | 585 | |
| 1920 | R | 113 | 402 | 527 | |
| 1916 | D | 331 | 157 | 497 | |
| 1912 | D | 242 | 218 | 510 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Jackson County sits in the high North Park basin with fewer than 1,600 residents, a ranching economy, and a 2024 presidential margin exceeding 55 points — making it a reliable anchor of Colorado's rural Republican geography.
The Democratic margin in Jackson County peaked at thirty-five points in 1916. By 1968 the county had flipped, voting Republican for the first time in many years. The 2024 margin was fifty-five points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Jackson County's median household income of $47,667 sits well below state and national norms, and 15% 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 Fergus County and Carter County.
