| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 5,100 | 16,346 | 21,710 | |
| 2020 | R | 5,771 | 16,259 | 22,335 | |
| 2016 | R | 5,258 | 13,786 | 19,547 | |
| 2012 | R | 6,564 | 12,883 | 19,667 | |
| 2008 | R | 7,406 | 13,516 | 21,253 | |
| 2004 | R | 8,511 | 10,596 | 19,221 | |
| 2000 | D | 8,663 | 8,286 | 17,137 | |
| 1996 | D | 8,851 | 6,614 | 16,428 | |
| 1992 | D | 9,555 | 7,161 | 18,332 | |
| 1988 | R | 7,542 | 8,415 | 16,038 | |
| 1984 | R | 8,334 | 9,484 | 17,992 | |
| 1980 | D | 9,829 | 6,792 | 16,923 | |
| 1976 | D | 10,356 | 5,563 | 16,031 | |
| 1972 | R | 3,625 | 9,900 | 13,934 | |
| 1968 | R | 3,962 | 4,093 | 15,288 | |
| 1964 | D | 8,119 | 4,614 | 12,733 | |
| 1960 | D | 5,796 | 5,173 | 11,329 | |
| 1956 | D | 7,884 | 3,481 | 11,713 | |
| 1952 | D | 6,687 | 3,766 | 10,491 | |
| 1948 | D | 3,917 | 1,137 | 5,971 | |
| 1944 | D | 4,632 | 1,568 | 6,212 | |
| 1940 | D | 5,103 | 1,233 | 6,356 | |
| 1936 | D | 4,744 | 958 | 5,730 | |
| 1932 | D | 3,972 | 704 | 4,705 | |
| 1928 | D | 2,898 | 1,365 | 4,272 | |
| 1924 | D | 3,235 | 1,037 | 4,311 | |
| 1920 | D | 5,942 | 3,209 | 9,170 | |
| 1916 | D | 3,609 | 1,443 | 5,074 | |
| 1912 | D | 2,671 | 1,002 | 4,226 | |
| 1908 | D | 3,173 | 1,369 | 4,573 | |
| 1904 | D | 3,014 | 1,421 | 4,566 | |
| 1900 | D | 3,376 | 1,509 | 5,196 | |
| 1896 | D | 4,203 | 1,955 | 6,381 | |
| 1892 | D | 3,085 | 1,299 | 5,519 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Gibson County's flat cotton-country landscape anchors an electorate that has voted Republican for president by double-digit margins for decades, reaching R+52 in 2024—a gap that has widened steadily as rural realignment accelerated across the region.
The unraveling was not abrupt. The Democratic margin in Gibson County peaked at sixty-nine points in 1932; it narrowed steadily over the late twentieth century. The 2004 election delivered the county to the Republican party for the first time in many years, by a margin of eleven points. By 2024, the margin had widened further.
The economic and demographic context is severe. Gibson County's median household income of $62,755 is among the lowest of any county in the United States; 14% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Campbell County and Obion County.