| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 3,215 | 7,874 | 11,208 | |
| 2020 | R | 3,787 | 8,273 | 12,177 | |
| 2016 | R | 3,677 | 7,836 | 11,693 | |
| 2012 | R | 4,393 | 8,237 | 12,729 | |
| 2008 | R | 4,422 | 8,513 | 13,010 | |
| 2004 | R | 3,888 | 7,999 | 11,947 | |
| 2000 | R | 4,114 | 6,796 | 10,998 | |
| 1996 | R | 4,334 | 5,023 | 9,968 | |
| 1992 | R | 4,654 | 5,776 | 11,613 | |
| 1988 | R | 4,240 | 7,019 | 11,344 | |
| 1984 | R | 3,757 | 7,355 | 11,125 | |
| 1980 | D | 5,366 | 5,218 | 10,707 | |
| 1976 | R | 5,283 | 5,300 | 10,737 | |
| 1972 | R | 1,693 | 6,805 | 8,570 | |
| 1968 | D | 1,722 | 763 | 8,333 | |
| 1964 | R | 505 | 5,469 | 5,974 | |
| 1960 | D | 1,082 | 698 | 3,045 | |
| 1956 | D | 1,751 | 611 | 3,032 | |
| 1952 | D | 2,597 | 1,420 | 4,017 | |
| 1948 | D | 205 | 49 | 2,745 | |
| 1944 | D | 2,441 | 54 | 2,495 | |
| 1940 | D | 2,083 | 45 | 2,128 | |
| 1936 | D | 1,932 | 37 | 1,970 | |
| 1932 | D | 2,429 | 94 | 2,531 | |
| 1928 | D | 922 | 526 | 1,448 | |
| 1924 | D | 1,039 | 99 | 1,138 | |
| 1920 | D | 613 | 143 | 772 | |
| 1916 | D | 792 | 51 | 848 | |
| 1912 | D | 438 | 12 | 479 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | D | 487 | 182 | 681 | |
| 1896 | D | 839 | 228 | 1,103 | |
| 1892 | D | 263 | 2 | 354 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Marion County's rural, majority-white electorate has delivered Republican presidential margins above 40 points in recent cycles, reflecting a broader realignment across the piney-woods counties of southern Mississippi.
The Democratic margin in Marion County peaked at ninety-six points in 1936. By 1984 the county had flipped, voting Republican for the first time in many years. The 2024 margin was forty-two points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Marion County's median household income of $45,110 sits well below state and national norms, and 20% 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 Colquitt County and Tallapoosa County.