| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,196 | 6,524 | 8,798 | |
| 2020 | R | 2,658 | 6,970 | 9,720 | |
| 2016 | R | 2,506 | 6,514 | 9,162 | |
| 2012 | R | 2,921 | 6,294 | 9,336 | |
| 2008 | R | 2,961 | 6,278 | 9,358 | |
| 2004 | R | 2,828 | 6,141 | 9,103 | |
| 2000 | R | 2,792 | 5,363 | 8,356 | |
| 1996 | D | 4,076 | 3,961 | 9,000 | |
| 1992 | D | 4,127 | 3,889 | 9,653 | |
| 1988 | R | 3,043 | 5,520 | 8,876 | |
| 1984 | R | 2,937 | 6,708 | 9,894 | |
| 1980 | R | 4,177 | 5,301 | 9,748 | |
| 1976 | R | 3,824 | 3,947 | 7,991 | |
| 1972 | R | 1,272 | 4,967 | 6,734 | |
| 1968 | R | 681 | 1,052 | 7,127 | |
| 1964 | D | 5,470 | 759 | 6,229 | |
| 1960 | R | 1,213 | 1,336 | 4,039 | |
| 1956 | D | 1,352 | 1,130 | 3,457 | |
| 1952 | D | 2,833 | 1,614 | 4,447 | |
| 1948 | D | 1,857 | 149 | 3,885 | |
| 1944 | D | 2,476 | 597 | 3,073 | |
| 1940 | D | 3,159 | 292 | 3,451 | |
| 1936 | D | 2,948 | 231 | 3,187 | |
| 1932 | D | 2,930 | 78 | 3,010 | |
| 1928 | D | 1,141 | 492 | 1,633 | |
| 1924 | D | 687 | 143 | 830 | |
| 1920 | D | 898 | 173 | 1,071 | |
| 1916 | D | 684 | 10 | 694 | |
| 1912 | D | 449 | 8 | 584 | |
| 1908 | D | 456 | 15 | 483 | |
| 1904 | D | 347 | 5 | 353 | |
| 1900 | D | 362 | 30 | 392 | |
| 1896 | D | 871 | 28 | 918 | |
| 1892 | D | 796 | 26 | 822 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Franklin Parish, anchored by the small city of Winnsboro, has delivered some of the widest Republican presidential margins in the state, reflecting a rural, majority-white demographic profile typical of northeast Louisiana's cotton-country parishes.
The unraveling was not abrupt. The Democratic margin in Franklin Parish peaked at ninety-seven points in 1916; 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 thirty-one points. By 2024, the margin had widened further.
The economic and demographic context is severe. Franklin Parish's median household income of $47,020 is among the lowest of any county in the United States; 24% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Laurens County and Tattnall County.