| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 8,144 | 9,900 | 18,227 | |
| 2020 | D | 7,185 | 7,078 | 14,394 | |
| 2016 | D | 5,956 | 5,187 | 11,427 | |
| 2012 | D | 5,757 | 4,169 | 10,021 | |
| 2008 | D | 5,389 | 3,365 | 8,854 | |
| 2004 | D | 3,840 | 2,933 | 6,846 | |
| 2000 | D | 3,646 | 2,414 | 6,469 | |
| 1996 | D | 4,053 | 2,024 | 6,468 | |
| 1992 | D | 3,453 | 1,725 | 5,763 | |
| 1988 | D | 2,894 | 2,004 | 4,929 | |
| 1984 | D | 3,753 | 3,102 | 6,879 | |
| 1980 | D | 3,312 | 1,617 | 4,969 | |
| 1976 | D | 2,903 | 1,221 | 4,140 | |
| 1972 | R | 1,203 | 1,650 | 2,884 | |
| 1968 | D | 1,402 | 633 | 3,116 | |
| 1964 | R | 1,002 | 1,593 | 2,595 | |
| 1960 | R | 721 | 779 | 1,500 | |
| 1956 | R | 210 | 403 | 1,271 | |
| 1952 | R | 636 | 800 | 1,436 | |
| 1948 | D | 141 | 31 | 887 | |
| 1944 | D | 230 | 18 | 454 | |
| 1940 | D | 418 | 41 | 459 | |
| 1936 | D | 452 | 0 | 456 | |
| 1932 | D | 399 | 0 | 410 | |
| 1928 | D | 102 | 5 | 107 | |
| 1924 | D | 89 | 0 | 128 | |
| 1920 | D | 219 | 0 | 219 | |
| 1916 | D | 243 | 0 | 243 | |
| 1912 | D | 198 | 0 | 198 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Jasper County sits at South Carolina's southern tip bordering Georgia and Savannah's metro pull, with a population that is majority Black yet has trended toward Republican presidential candidates by double digits in recent cycles.
The county's recent history is a story of close margins. The Democratic margin reached 100 points in 1912; the Republican margin reached twenty-three points in 1964. Most other elections have been decided by single-digit points.
Jasper County's demographics — a population of 32,166, a 48% non-Hispanic-white share, a median household income of $65,613 — situate the county close to national averages on several dimensions. The county's voting pattern over the last decade is most similar to that of Marshall County and Duval County.