| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 44,002 | 59,123 | 104,403 | |
| 2020 | R | 43,419 | 53,194 | 97,835 | |
| 2016 | R | 32,138 | 42,922 | 78,524 | |
| 2012 | R | 29,848 | 42,687 | 73,297 | |
| 2008 | R | 30,396 | 37,821 | 68,870 | |
| 2004 | R | 21,505 | 33,331 | 55,235 | |
| 2000 | R | 17,487 | 25,561 | 44,148 | |
| 1996 | R | 13,532 | 17,575 | 33,162 | |
| 1992 | R | 11,466 | 14,735 | 31,287 | |
| 1988 | R | 8,691 | 16,184 | 25,021 | |
| 1984 | R | 7,347 | 13,668 | 21,118 | |
| 1980 | R | 7,415 | 8,620 | 16,700 | |
| 1976 | D | 6,049 | 5,935 | 12,029 | |
| 1972 | R | 3,237 | 5,929 | 9,247 | |
| 1968 | D | 3,740 | 2,983 | 8,221 | |
| 1964 | R | 2,747 | 3,432 | 6,179 | |
| 1960 | R | 1,800 | 2,021 | 3,821 | |
| 1956 | R | 710 | 1,051 | 2,777 | |
| 1952 | R | 1,106 | 1,599 | 2,705 | |
| 1948 | D | 253 | 150 | 1,257 | |
| 1944 | D | 594 | 108 | 797 | |
| 1940 | D | 582 | 91 | 673 | |
| 1936 | D | 501 | 0 | 544 | |
| 1932 | D | 555 | 0 | 624 | |
| 1928 | D | 414 | 124 | 541 | |
| 1924 | D | 365 | 64 | 438 | |
| 1920 | D | 265 | 149 | 414 | |
| 1916 | D | 376 | 105 | 485 | |
| 1912 | D | 464 | 0 | 576 | |
| 1908 | D | 522 | 272 | 794 | |
| 1904 | D | 415 | 319 | 734 | |
| 1900 | R | 378 | 385 | 763 | |
| 1896 | R | 289 | 444 | 733 | |
| 1892 | R | 175 | 268 | 443 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Beaufort's combination of military retirees, resort communities, and a steadily expanding professional transplant population has compressed its presidential margin from R+20-plus a decade ago to R+14.5 in 2024, making it one of South Carolina's closer watches.
The shift began with civil rights. 1980 marked the realignment in Beaufort County, by a seven points margin. The Republican margin reached its widest at thirty points in 1988. The 2024 margin was fourteen points.
The political shift has tracked, in Beaufort County, the political shift of the South more broadly. A 69% non-Hispanic-white share, a median household income of $86,573, and a 10% poverty rate describe the demographic context. The county's voting pattern over the last decade is most similar to that of Fauquier County and Escambia County.
