| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 72,424 | 140,168 | 214,089 | |
| 2020 | R | 74,858 | 127,826 | 204,376 | |
| 2016 | R | 62,041 | 107,833 | 174,700 | |
| 2012 | R | 66,831 | 93,043 | 161,385 | |
| 2008 | R | 70,839 | 89,628 | 162,022 | |
| 2004 | R | 57,271 | 81,283 | 139,677 | |
| 2000 | R | 44,674 | 55,146 | 102,971 | |
| 1996 | R | 37,045 | 41,409 | 90,171 | |
| 1992 | R | 30,829 | 35,442 | 86,989 | |
| 1988 | R | 20,685 | 41,501 | 62,520 | |
| 1984 | R | 16,225 | 37,815 | 54,046 | |
| 1980 | R | 15,400 | 23,743 | 40,592 | |
| 1976 | D | 16,963 | 16,163 | 33,679 | |
| 1972 | R | 5,397 | 19,505 | 24,948 | |
| 1968 | R | 5,798 | 7,468 | 22,866 | |
| 1964 | R | 9,112 | 10,879 | 19,991 | |
| 1960 | D | 7,206 | 7,043 | 14,249 | |
| 1956 | R | 6,114 | 6,362 | 12,476 | |
| 1952 | R | 5,854 | 6,134 | 11,988 | |
| 1948 | D | 4,650 | 1,829 | 8,156 | |
| 1944 | D | 5,597 | 1,642 | 7,239 | |
| 1940 | D | 6,127 | 1,297 | 7,424 | |
| 1936 | D | 4,664 | 760 | 5,424 | |
| 1932 | D | 3,208 | 962 | 4,170 | |
| 1928 | R | 1,863 | 1,927 | 3,873 | |
| 1924 | D | 1,528 | 359 | 2,081 | |
| 1920 | D | 2,436 | 1,232 | 3,902 | |
| 1916 | D | 1,567 | 462 | 2,369 | |
| 1912 | D | 1,165 | 179 | 1,647 | |
| 1908 | D | 1,352 | 482 | 2,186 | |
| 1904 | D | 1,091 | 230 | 1,452 | |
| 1900 | D | 1,132 | 264 | 1,499 | |
| 1896 | D | 1,230 | 480 | 1,871 | |
| 1892 | D | 1,133 | 0 | 1,683 | |
| 1888 | — | — | — | — | |
| 1884 | R | 1,494 | 2,007 | 3,501 | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Marion County's population has nearly doubled since 2000, driven by retiree migration to Ocala's horse-country suburbs, and its presidential margins have widened steadily rightward over the same period, reaching R+31.6 in 2024.
The Democratic margin in Marion County peaked at seventy-two points in 1936. By 1980 the county had flipped, voting Republican for the first time in many years. The 2024 margin was thirty-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 $61,010 sits well below state and national norms, and 14% 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 Madison County and Highlands County.