| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,246 | 4,484 | 6,815 | |
| 2020 | R | 2,620 | 4,503 | 7,196 | |
| 2016 | R | 2,697 | 4,289 | 7,050 | |
| 2012 | R | 3,242 | 4,414 | 7,706 | |
| 2008 | R | 3,348 | 4,245 | 7,650 | |
| 2004 | R | 3,012 | 4,147 | 7,197 | |
| 2000 | R | 2,673 | 3,677 | 6,408 | |
| 1996 | D | 2,824 | 2,521 | 5,716 | |
| 1992 | D | 2,608 | 2,561 | 5,681 | |
| 1988 | R | 2,834 | 3,333 | 6,186 | |
| 1984 | R | 2,569 | 3,463 | 6,050 | |
| 1980 | D | 3,229 | 2,653 | 5,971 | |
| 1976 | D | 2,574 | 2,256 | 4,999 | |
| 1972 | R | 1,185 | 2,846 | 4,128 | |
| 1968 | D | 1,533 | 393 | 5,132 | |
| 1964 | R | 103 | 2,742 | 2,845 | |
| 1960 | D | 338 | 283 | 2,276 | |
| 1956 | D | 802 | 255 | 1,716 | |
| 1952 | D | 1,121 | 777 | 1,898 | |
| 1948 | D | 55 | 17 | 1,631 | |
| 1944 | D | 1,426 | 87 | 1,513 | |
| 1940 | D | 1,435 | 64 | 1,499 | |
| 1936 | D | 1,421 | 56 | 1,492 | |
| 1932 | D | 1,237 | 73 | 1,318 | |
| 1928 | D | 1,189 | 325 | 1,514 | |
| 1924 | D | 926 | 86 | 1,012 | |
| 1920 | D | 578 | 90 | 673 | |
| 1916 | D | 1,024 | 16 | 1,046 | |
| 1912 | D | 666 | 5 | 686 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | D | 771 | 27 | 842 | |
| 1896 | D | 983 | 21 | 1,027 | |
| 1892 | D | 576 | 9 | 773 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Amite County's population has declined steadily since the 1980s, and its electorate—heavily rural, with agriculture anchoring the local economy—has shifted toward lopsided Republican margins in federal contests over the past two decades.
The Democratic margin in Amite County peaked at ninety-six points in 1916. By 2000 the county had flipped, voting Republican for the first time in many years. The 2024 margin was thirty-three points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Amite County's median household income of $37,222 sits well below state and national norms, and 28% 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 Pendleton County and Breckinridge County.