| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 13,194 | 34,912 | 48,653 | |
| 2020 | R | 15,216 | 35,101 | 50,983 | |
| 2016 | R | 13,242 | 32,865 | 47,223 | |
| 2012 | R | 15,511 | 30,278 | 46,257 | |
| 2008 | R | 16,334 | 32,348 | 49,242 | |
| 2004 | R | 15,083 | 29,814 | 45,249 | |
| 2000 | R | 15,781 | 22,306 | 38,909 | |
| 1996 | R | 15,725 | 18,088 | 36,911 | |
| 1992 | R | 16,453 | 20,623 | 42,800 | |
| 1988 | R | 12,451 | 19,806 | 33,968 | |
| 1984 | R | 12,752 | 23,291 | 38,082 | |
| 1980 | R | 17,017 | 17,475 | 35,541 | |
| 1976 | D | 20,466 | 11,763 | 32,700 | |
| 1972 | R | 5,832 | 20,364 | 26,471 | |
| 1968 | D | 4,146 | 3,061 | 26,775 | |
| 1964 | R | 0 | 10,635 | 16,845 | |
| 1960 | D | 9,590 | 4,821 | 14,536 | |
| 1956 | D | 9,069 | 4,473 | 13,900 | |
| 1952 | D | 8,023 | 3,064 | 11,193 | |
| 1948 | R | 0 | 856 | 4,181 | |
| 1944 | D | 4,308 | 694 | 5,030 | |
| 1940 | D | 4,408 | 645 | 5,071 | |
| 1936 | D | 4,322 | 581 | 4,961 | |
| 1932 | D | 4,392 | 685 | 5,108 | |
| 1928 | R | 2,117 | 2,537 | 4,655 | |
| 1924 | D | 1,907 | 766 | 2,819 | |
| 1920 | D | 3,423 | 1,139 | 4,601 | |
| 1916 | D | 2,231 | 442 | 2,727 | |
| 1912 | D | 1,666 | 238 | 2,359 | |
| 1908 | D | 1,438 | 570 | 2,121 | |
| 1904 | D | 1,556 | 287 | 1,933 | |
| 1900 | D | 1,835 | 567 | 2,684 | |
| 1896 | D | 2,788 | 1,222 | 4,296 | |
| 1892 | D | 3,249 | 218 | 5,084 | |
| 1888 | D | 2,680 | 938 | 3,628 | |
| 1884 | D | 2,035 | 1,066 | 3,106 | |
| 1880 | D | 1,984 | 509 | 2,505 | |
| 1876 | D | 2,040 | 421 | 2,461 |
Anchored by Anniston and the former Fort McClellan military installation, Calhoun County delivered a 44.6-point Republican margin in 2024, a figure consistent with its pattern as a heavily working-class, non-metro county in northeastern Alabama.
The unraveling was not abrupt. The Democratic margin in Calhoun County peaked at seventy-five points in 1936; it narrowed steadily over the late twentieth century. The 1980 election delivered the county to the Republican party for the first time in many years, by a margin of one points. By 2024, the margin had widened further.
The economic and demographic context is severe. Calhoun County's median household income of $55,029 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 Covington County and Washington County.