| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 3,210 | 11,064 | 14,405 | |
| 2020 | R | 3,157 | 9,464 | 12,727 | |
| 2016 | R | 2,585 | 7,286 | 10,161 | |
| 2012 | R | 2,870 | 6,517 | 9,529 | |
| 2008 | R | 3,365 | 6,537 | 10,002 | |
| 2004 | R | 3,479 | 5,500 | 9,032 | |
| 2000 | R | 3,192 | 4,242 | 7,536 | |
| 1996 | D | 3,486 | 2,884 | 7,171 | |
| 1992 | D | 3,614 | 2,607 | 7,609 | |
| 1988 | R | 2,476 | 3,044 | 5,547 | |
| 1984 | R | 2,496 | 2,842 | 5,338 | |
| 1980 | D | 4,539 | 1,577 | 6,215 | |
| 1976 | D | 4,605 | 860 | 5,465 | |
| 1972 | R | 784 | 2,308 | 3,092 | |
| 1968 | D | 979 | 586 | 4,774 | |
| 1964 | D | 3,142 | 1,166 | 4,318 | |
| 1960 | D | 3,963 | 275 | 4,238 | |
| 1956 | D | 1,139 | 107 | 1,246 | |
| 1952 | D | 3,244 | 204 | 3,448 | |
| 1948 | D | 1,363 | 78 | 1,530 | |
| 1944 | D | 1,161 | 183 | 1,344 | |
| 1940 | D | 1,328 | 97 | 1,441 | |
| 1936 | D | 1,514 | 222 | 1,741 | |
| 1932 | D | 1,261 | 12 | 1,274 | |
| 1928 | D | 919 | 603 | 1,522 | |
| 1924 | D | 857 | 65 | 1,117 | |
| 1920 | D | 694 | 323 | 1,017 | |
| 1916 | D | 750 | 22 | 1,009 | |
| 1912 | D | 484 | 15 | 790 | |
| 1908 | D | 408 | 192 | 809 | |
| 1904 | D | 482 | 93 | 814 | |
| 1900 | D | 639 | 185 | 871 | |
| 1896 | D | 738 | 339 | 1,173 | |
| 1892 | D | 839 | 86 | 1,441 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Hart County, anchored by Hartwell on Lake Hartwell's northern shore, has shifted steadily toward wide Republican margins over the past decade as its small-city and agricultural population tracks broader Piedmont rural trends.
The unraveling was not abrupt. The Democratic margin in Hart County peaked at ninety-eight 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 fourteen points. By 2024, the margin had widened further.
The economic and demographic context is severe. Hart County's median household income of $59,385 is among the lowest of any county in the United States; 12% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Cleburne County and Scott County.
