| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 9,987 | 31,772 | 42,264 | |
| 2020 | R | 10,414 | 29,698 | 40,668 | |
| 2016 | R | 7,998 | 24,178 | 33,635 | |
| 2012 | R | 8,550 | 21,611 | 30,666 | |
| 2008 | R | 9,481 | 21,164 | 31,132 | |
| 2004 | R | 8,395 | 18,811 | 27,532 | |
| 2000 | R | 7,571 | 15,364 | 23,575 | |
| 1996 | R | 7,398 | 10,503 | 19,952 | |
| 1992 | R | 6,617 | 10,379 | 20,479 | |
| 1988 | R | 4,299 | 10,184 | 14,585 | |
| 1984 | R | 3,333 | 8,625 | 12,044 | |
| 1980 | D | 7,677 | 5,651 | 13,591 | |
| 1976 | D | 8,447 | 3,805 | 12,312 | |
| 1972 | R | 1,740 | 6,824 | 8,728 | |
| 1968 | R | 2,009 | 2,618 | 9,369 | |
| 1964 | D | 5,560 | 2,712 | 8,272 | |
| 1960 | D | 4,328 | 1,886 | 6,214 | |
| 1956 | D | 3,510 | 911 | 4,797 | |
| 1952 | D | 3,230 | 1,624 | 4,854 | |
| 1948 | D | 666 | 135 | 1,957 | |
| 1944 | D | 1,316 | 106 | 1,498 | |
| 1940 | D | 1,593 | 143 | 1,736 | |
| 1936 | D | 2,057 | 0 | 2,110 | |
| 1932 | D | 1,803 | 0 | 1,818 | |
| 1928 | D | 1,263 | 70 | 1,335 | |
| 1924 | D | 989 | 5 | 1,027 | |
| 1920 | D | 1,249 | 70 | 1,319 | |
| 1916 | D | 885 | 59 | 947 | |
| 1912 | D | 760 | 0 | 887 | |
| 1908 | D | 1,126 | 172 | 1,300 | |
| 1904 | D | 720 | 62 | 782 | |
| 1900 | D | 873 | 69 | 942 | |
| 1896 | D | 1,392 | 199 | 1,591 | |
| 1892 | D | 909 | 220 | 1,557 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Nestled against the Georgia and North Carolina borders in South Carolina's Upstate, Oconee County has delivered Republican presidential margins above 50 points in recent cycles, reflecting a rural, largely white electorate with deep roots in small-town and agricultural communities.
The unraveling was not abrupt. The Democratic margin in Oconee County peaked at ninety-nine points in 1932; it narrowed steadily over the late twentieth century. The 1984 election delivered the county to the Republican party for the first time in many years, by a margin of forty-four points. By 2024, the margin had widened further.
The economic and demographic context is severe. Oconee County's median household income of $62,388 is among the lowest of any county in the United States; 18% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Anderson County and Bradley County.
