| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 3,245 | 2,376 | 5,694 | |
| 2020 | D | 4,010 | 2,417 | 6,482 | |
| 2016 | D | 3,898 | 2,204 | 6,214 | |
| 2012 | D | 4,624 | 2,194 | 6,882 | |
| 2008 | D | 4,426 | 2,309 | 6,814 | |
| 2004 | D | 3,841 | 2,138 | 6,036 | |
| 2000 | D | 3,451 | 2,047 | 5,551 | |
| 1996 | D | 3,380 | 1,715 | 5,312 | |
| 1992 | D | 3,426 | 1,906 | 5,727 | |
| 1988 | D | 2,830 | 2,403 | 5,255 | |
| 1984 | R | 2,892 | 2,908 | 5,831 | |
| 1980 | D | 3,294 | 2,098 | 5,422 | |
| 1976 | D | 3,330 | 1,849 | 5,216 | |
| 1972 | R | 1,680 | 2,537 | 4,253 | |
| 1968 | D | 1,845 | 1,327 | 4,790 | |
| 1964 | R | 1,419 | 2,366 | 3,785 | |
| 1960 | R | 908 | 1,652 | 2,560 | |
| 1956 | D | 430 | 326 | 1,874 | |
| 1952 | R | 750 | 1,407 | 2,157 | |
| 1948 | D | 124 | 34 | 1,873 | |
| 1944 | D | 737 | 106 | 1,041 | |
| 1940 | D | 904 | 13 | 917 | |
| 1936 | D | 1,542 | 0 | 1,547 | |
| 1932 | D | 1,598 | 0 | 1,613 | |
| 1928 | D | 779 | 4 | 783 | |
| 1924 | D | 708 | 7 | 729 | |
| 1920 | D | 688 | 0 | 688 | |
| 1916 | D | 820 | 0 | 821 | |
| 1912 | D | 616 | 0 | 620 | |
| 1908 | D | 848 | 33 | 881 | |
| 1904 | D | 868 | 23 | 891 | |
| 1900 | D | 793 | 36 | 829 | |
| 1896 | D | 2,385 | 239 | 2,627 | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Bamberg County's electorate is roughly 57% Black, anchoring consistent Democratic margins in a state that otherwise leans heavily Republican. Its shrinking population—down nearly 20% since 2000—shapes both its political weight and its policy priorities.
The Democratic margin in Bamberg County peaked at 100 points in 1920. By 1988 the county had flipped, voting Republican for the first time in many years. The 2024 margin was fifteen points, the most Democratic-leaning result in the county's modern history.
The economic context is the key. Bamberg County's median household income of $44,370 sits well below state and national norms, and 24% 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 Bolivar County and Marion County.
