| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 17,634 | 42,536 | 60,756 | |
| 2020 | R | 16,238 | 37,476 | 54,474 | |
| 2016 | R | 12,464 | 30,029 | 44,459 | |
| 2012 | R | 12,688 | 28,280 | 41,672 | |
| 2008 | R | 14,334 | 28,661 | 43,498 | |
| 2004 | R | 10,224 | 24,837 | 35,347 | |
| 2000 | R | 8,752 | 16,326 | 25,741 | |
| 1996 | R | 8,438 | 11,157 | 21,769 | |
| 1992 | R | 8,404 | 10,750 | 22,586 | |
| 1988 | R | 4,706 | 10,754 | 15,541 | |
| 1984 | R | 5,590 | 11,436 | 17,026 | |
| 1980 | D | 8,202 | 5,815 | 14,475 | |
| 1976 | D | 10,050 | 3,640 | 13,690 | |
| 1972 | R | 2,158 | 8,296 | 10,454 | |
| 1968 | R | 2,326 | 3,135 | 11,970 | |
| 1964 | R | 4,794 | 4,984 | 9,780 | |
| 1960 | D | 4,698 | 1,729 | 6,427 | |
| 1956 | D | 4,855 | 1,712 | 6,567 | |
| 1952 | D | 5,207 | 1,194 | 6,401 | |
| 1948 | D | 2,671 | 526 | 3,671 | |
| 1944 | D | 3,331 | 704 | 4,035 | |
| 1940 | D | 3,808 | 616 | 4,432 | |
| 1936 | D | 3,717 | 653 | 4,374 | |
| 1932 | D | 3,232 | 284 | 3,546 | |
| 1928 | R | 1,913 | 2,112 | 4,025 | |
| 1924 | D | 1,784 | 526 | 2,538 | |
| 1920 | D | 1,632 | 1,227 | 2,859 | |
| 1916 | D | 1,621 | 118 | 2,152 | |
| 1912 | D | 1,192 | 81 | 1,720 | |
| 1908 | D | 917 | 505 | 1,787 | |
| 1904 | D | 1,187 | 400 | 2,193 | |
| 1900 | D | 1,270 | 697 | 1,967 | |
| 1896 | D | 1,490 | 733 | 2,299 | |
| 1892 | D | 2,137 | 543 | 3,329 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Carroll County sits at Atlanta's southwestern fringe, where suburban growth has done little to erode a deep conservative baseline — the 2024 presidential margin of R+41 points places it among Georgia's most lopsided counties.
The unraveling was not abrupt. The Democratic margin in Carroll County peaked at eighty-three 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 thirty-four points. By 2024, the margin had widened further.
The economic and demographic context is severe. Carroll County's median household income of $73,714 is among the lowest of any county in the United States; 15% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Tift County and Dale County.