| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 4,098 | 9,528 | 13,662 | |
| 2020 | R | 4,201 | 8,608 | 12,905 | |
| 2016 | R | 3,475 | 7,292 | 10,934 | |
| 2012 | R | 3,959 | 7,230 | 11,279 | |
| 2008 | R | 4,061 | 7,291 | 11,421 | |
| 2004 | R | 3,424 | 6,634 | 10,094 | |
| 2000 | R | 3,158 | 5,019 | 8,282 | |
| 1996 | R | 3,491 | 3,783 | 8,035 | |
| 1992 | R | 3,740 | 4,053 | 9,001 | |
| 1988 | R | 2,666 | 4,614 | 7,318 | |
| 1984 | R | 2,943 | 4,803 | 7,746 | |
| 1980 | D | 4,713 | 2,788 | 7,635 | |
| 1976 | D | 4,219 | 2,897 | 7,116 | |
| 1972 | R | 896 | 4,892 | 5,788 | |
| 1968 | R | 1,480 | 1,494 | 6,573 | |
| 1964 | D | 3,275 | 3,103 | 6,384 | |
| 1960 | D | 3,262 | 1,001 | 4,263 | |
| 1956 | D | 3,422 | 712 | 4,134 | |
| 1952 | D | 3,837 | 648 | 4,485 | |
| 1948 | D | 2,432 | 262 | 2,993 | |
| 1944 | D | 2,362 | 243 | 2,605 | |
| 1940 | D | 2,235 | 159 | 2,394 | |
| 1936 | D | 1,471 | 138 | 1,610 | |
| 1932 | D | 1,660 | 20 | 1,684 | |
| 1928 | D | 721 | 221 | 942 | |
| 1924 | D | 484 | 37 | 581 | |
| 1920 | D | 957 | 170 | 1,127 | |
| 1916 | D | 734 | 18 | 1,011 | |
| 1912 | D | 445 | 7 | 590 | |
| 1908 | D | 369 | 145 | 763 | |
| 1904 | D | 468 | 77 | 826 | |
| 1900 | D | 468 | 133 | 782 | |
| 1896 | D | 591 | 498 | 1,125 | |
| 1892 | D | 862 | 339 | 1,755 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Upson County, anchored by Thomaston, has drifted steadily toward lopsided Republican margins over two decades, reflecting a broader rural Piedmont pattern where manufacturing job losses reshaped the electorate well before Georgia's suburban counties drew national attention.
The unraveling was not abrupt. The Democratic margin in Upson County peaked at ninety-seven 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 twenty-four points. By 2024, the margin had settled into deep Republican territory.
The economic and demographic context is severe. Upson County's median household income of $55,429 is among the lowest of any county in the United States; 19% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Evans County and Colquitt County.