| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 986 | 3,340 | 4,342 | |
| 2020 | R | 1,008 | 3,134 | 4,168 | |
| 2016 | R | 891 | 2,716 | 3,670 | |
| 2012 | R | 1,141 | 2,538 | 3,714 | |
| 2008 | R | 1,197 | 2,605 | 3,828 | |
| 2004 | R | 1,051 | 2,347 | 3,418 | |
| 2000 | R | 1,105 | 1,720 | 2,852 | |
| 1996 | D | 1,225 | 1,085 | 2,540 | |
| 1992 | D | 1,366 | 973 | 2,820 | |
| 1988 | R | 918 | 1,226 | 2,151 | |
| 1984 | R | 905 | 1,330 | 2,235 | |
| 1980 | D | 1,555 | 1,056 | 2,632 | |
| 1976 | D | 2,012 | 561 | 2,573 | |
| 1972 | R | 335 | 1,851 | 2,186 | |
| 1968 | D | 474 | 430 | 2,860 | |
| 1964 | R | 740 | 2,017 | 2,757 | |
| 1960 | D | 1,625 | 352 | 1,977 | |
| 1956 | D | 1,554 | 312 | 1,866 | |
| 1952 | D | 1,475 | 516 | 1,991 | |
| 1948 | D | 946 | 146 | 1,355 | |
| 1944 | D | 862 | 259 | 1,121 | |
| 1940 | D | 962 | 197 | 1,162 | |
| 1936 | D | 1,025 | 110 | 1,141 | |
| 1932 | D | 1,416 | 22 | 1,439 | |
| 1928 | D | 917 | 162 | 1,079 | |
| 1924 | D | 268 | 35 | 324 | |
| 1920 | D | 525 | 114 | 639 | |
| 1916 | D | 503 | 31 | 558 | |
| 1912 | D | 428 | 6 | 480 | |
| 1908 | D | 388 | 174 | 592 | |
| 1904 | D | 658 | 342 | 1,099 | |
| 1900 | D | 700 | 583 | 1,302 | |
| 1896 | D | 626 | 486 | 1,135 | |
| 1892 | D | 551 | 43 | 722 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Irwin County, anchored by the small city of Ocilla in south-central Georgia, has delivered Republican presidential margins above 50 points in recent cycles, reflecting the deep-red lean common across the state's sparsely populated agricultural belt.
The unraveling was not abrupt. The Democratic margin in Irwin County peaked at ninety-seven points in 1932; it narrowed steadily over the late twentieth century. The 2000 election delivered the county to the Republican party for the first time in many years, by a margin of twenty-two points. By 2024, the margin had widened further.
The economic and demographic context is severe. Irwin County's median household income of $51,384 is among the lowest of any county in the United States; 22% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Atkinson County and Butts County.
