| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 4,372 | 7,140 | 11,549 | |
| 2020 | R | 4,780 | 6,758 | 11,627 | |
| 2016 | R | 4,124 | 6,020 | 10,317 | |
| 2012 | R | 4,591 | 5,824 | 10,500 | |
| 2008 | R | 4,424 | 5,890 | 10,374 | |
| 2004 | R | 3,577 | 5,348 | 8,956 | |
| 2000 | R | 3,398 | 4,187 | 7,648 | |
| 1996 | D | 3,245 | 3,035 | 6,797 | |
| 1992 | D | 3,198 | 3,142 | 7,419 | |
| 1988 | R | 2,348 | 3,866 | 6,241 | |
| 1984 | R | 2,656 | 4,134 | 6,790 | |
| 1980 | D | 3,242 | 2,919 | 6,243 | |
| 1976 | D | 3,736 | 2,500 | 6,236 | |
| 1972 | R | 1,196 | 4,292 | 5,488 | |
| 1968 | D | 1,729 | 749 | 7,054 | |
| 1964 | R | 2,011 | 5,060 | 7,072 | |
| 1960 | D | 2,780 | 918 | 3,698 | |
| 1956 | D | 3,699 | 1,062 | 4,761 | |
| 1952 | D | 2,581 | 1,001 | 3,582 | |
| 1948 | D | 1,209 | 296 | 2,272 | |
| 1944 | D | 1,606 | 294 | 1,900 | |
| 1940 | D | 1,781 | 217 | 2,000 | |
| 1936 | D | 1,965 | 79 | 2,053 | |
| 1932 | D | 1,169 | 65 | 1,257 | |
| 1928 | R | 734 | 1,156 | 1,890 | |
| 1924 | D | 637 | 151 | 922 | |
| 1920 | D | 982 | 300 | 1,282 | |
| 1916 | D | 1,147 | 35 | 1,298 | |
| 1912 | D | 1,150 | 52 | 1,617 | |
| 1908 | D | 782 | 537 | 1,455 | |
| 1904 | D | 985 | 182 | 1,306 | |
| 1900 | D | 1,007 | 260 | 1,375 | |
| 1896 | D | 972 | 700 | 1,749 | |
| 1892 | D | 1,349 | 561 | 2,374 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Decatur County sits in Georgia's agricultural southwest, where a predominantly rural economy and small-town demographics have produced consistent double-digit Republican presidential margins across multiple election cycles.
The shift began with civil rights. 2000 marked the realignment in Decatur County, by a ten points margin. The Republican margin reached its widest at fifty-six points in 1972. The 2024 margin was twenty-four points.
The political shift has tracked, in Decatur County, the political shift of the South more broadly. A 49% non-Hispanic-white share, a median household income of $53,317, and a 22% poverty rate describe the demographic context. The county's voting pattern over the last decade is most similar to that of Lincoln Parish and Crisp County.
