| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,852 | 5,291 | 7,226 | |
| 2020 | R | 2,143 | 5,394 | 7,632 | |
| 2016 | R | 2,139 | 5,169 | 7,464 | |
| 2012 | R | 2,305 | 5,132 | 7,529 | |
| 2008 | R | 2,456 | 5,190 | 7,736 | |
| 2004 | R | 2,525 | 5,038 | 7,647 | |
| 2000 | R | 2,582 | 4,347 | 7,106 | |
| 1996 | D | 3,368 | 3,030 | 7,067 | |
| 1992 | D | 3,370 | 3,072 | 7,566 | |
| 1988 | R | 2,842 | 4,251 | 7,249 | |
| 1984 | R | 2,568 | 5,034 | 7,761 | |
| 1980 | R | 3,609 | 3,923 | 7,730 | |
| 1976 | D | 3,605 | 3,310 | 7,060 | |
| 1972 | R | 1,477 | 4,152 | 5,935 | |
| 1968 | D | 1,525 | 1,104 | 6,570 | |
| 1964 | D | 4,521 | 1,552 | 6,073 | |
| 1960 | R | 1,398 | 1,799 | 4,100 | |
| 1956 | R | 916 | 1,553 | 2,862 | |
| 1952 | D | 2,817 | 1,614 | 4,431 | |
| 1948 | D | 713 | 169 | 2,289 | |
| 1944 | D | 1,840 | 414 | 2,257 | |
| 1940 | D | 2,734 | 280 | 3,014 | |
| 1936 | D | 1,807 | 169 | 1,976 | |
| 1932 | D | 1,748 | 34 | 1,782 | |
| 1928 | D | 907 | 0 | 907 | |
| 1924 | D | 682 | 88 | 770 | |
| 1920 | D | 1,229 | 166 | 1,395 | |
| 1916 | D | 980 | 27 | 1,009 | |
| 1912 | D | 561 | 19 | 767 | |
| 1908 | D | 493 | 77 | 625 | |
| 1904 | D | 576 | 53 | 633 | |
| 1900 | D | 333 | 82 | 415 | |
| 1896 | D | 705 | 18 | 725 | |
| 1892 | D | 396 | 306 | 702 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
A rural parish in north-central Louisiana, Jackson posted an R+47.6 margin in 2024, reflecting the deep Republican alignment typical of the state's upland piney-woods counties, where small-town economies and low population density define the electorate.
The unraveling was not abrupt. The Democratic margin in Jackson Parish peaked at 100 points in 1928; it narrowed steadily over the late twentieth century. The 2000 election delivered the county to the Republican party for the first time in many years, by a margin of twenty-five points. By 2024, the margin had widened further.
The economic and demographic context is severe. Jackson Parish's median household income of $44,925 is among the lowest of any county in the United States; 22% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Caldwell Parish and Morgan County.