| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 28,041 | 74,862 | 104,186 | |
| 2020 | R | 29,615 | 69,080 | 100,334 | |
| 2016 | R | 22,300 | 58,930 | 84,768 | |
| 2012 | R | 21,456 | 57,331 | 79,601 | |
| 2008 | R | 23,726 | 55,187 | 79,561 | |
| 2004 | R | 19,970 | 53,392 | 73,664 | |
| 2000 | R | 16,470 | 43,320 | 60,624 | |
| 1996 | R | 18,265 | 32,171 | 53,643 | |
| 1992 | R | 17,514 | 27,753 | 59,006 | |
| 1988 | R | 18,719 | 34,658 | 53,592 | |
| 1984 | R | 15,227 | 40,740 | 56,119 | |
| 1980 | R | 14,838 | 28,236 | 43,700 | |
| 1976 | R | 16,856 | 22,238 | 39,275 | |
| 1972 | R | 8,041 | 23,671 | 31,827 | |
| 1968 | R | 8,897 | 12,079 | 30,571 | |
| 1964 | R | 12,474 | 12,960 | 25,472 | |
| 1960 | R | 8,494 | 12,042 | 20,821 | |
| 1956 | R | 6,468 | 12,255 | 18,792 | |
| 1952 | R | 8,450 | 10,947 | 19,410 | |
| 1948 | D | 6,473 | 3,181 | 11,309 | |
| 1944 | D | 6,671 | 936 | 9,538 | |
| 1940 | D | 9,410 | 1,557 | 10,975 | |
| 1936 | D | 7,116 | 660 | 7,788 | |
| 1932 | D | 7,424 | 750 | 8,201 | |
| 1928 | R | 2,343 | 3,493 | 5,836 | |
| 1924 | D | 4,473 | 1,079 | 5,723 | |
| 1920 | D | 2,965 | 707 | 4,676 | |
| 1916 | D | 2,422 | 773 | 3,481 | |
| 1912 | D | 1,936 | 485 | 3,249 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Home to Tyler, Smith County has delivered Republican presidential margins above 40 points in recent cycles, with a population mix of medical-sector workers, retirees, and rural residents that has kept the county well to the right of statewide averages.
The shift began with civil rights. 1952 marked the realignment in Smith County, by a thirteen points margin. The Republican margin reached its widest at forty-nine points in 1972. The 2024 margin was forty-five points.
The political shift has tracked, in Smith County, the political shift of the South more broadly. A 67% non-Hispanic-white share, a median household income of $74,192, and a 12% poverty rate describe the demographic context. The county's voting pattern over the last decade is most similar to that of Taylor County and Fremont County.
