| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 3,339 | 4,474 | 7,914 | |
| 2020 | R | 3,905 | 4,305 | 8,291 | |
| 2016 | R | 3,573 | 3,787 | 7,549 | |
| 2012 | D | 4,045 | 3,707 | 7,834 | |
| 2008 | D | 3,970 | 3,695 | 7,738 | |
| 2004 | R | 3,393 | 3,448 | 6,919 | |
| 2000 | R | 3,063 | 3,216 | 6,373 | |
| 1996 | D | 2,716 | 2,520 | 5,598 | |
| 1992 | D | 2,770 | 2,418 | 5,778 | |
| 1988 | R | 2,175 | 2,585 | 4,787 | |
| 1984 | R | 2,315 | 2,742 | 5,094 | |
| 1980 | D | 2,043 | 1,767 | 3,853 | |
| 1976 | D | 2,055 | 1,382 | 3,466 | |
| 1972 | R | 1,148 | 1,867 | 3,065 | |
| 1968 | D | 1,216 | 885 | 3,079 | |
| 1964 | R | 612 | 1,591 | 2,203 | |
| 1960 | R | 536 | 852 | 1,388 | |
| 1956 | D | 341 | 146 | 1,180 | |
| 1952 | R | 384 | 1,107 | 1,491 | |
| 1948 | D | 36 | 4 | 881 | |
| 1944 | D | 602 | 1 | 686 | |
| 1940 | D | 657 | 3 | 660 | |
| 1936 | D | 821 | 0 | 822 | |
| 1932 | D | 694 | 0 | 704 | |
| 1928 | D | 577 | 7 | 584 | |
| 1924 | D | 593 | 5 | 599 | |
| 1920 | D | 631 | 41 | 672 | |
| 1916 | D | 665 | 41 | 743 | |
| 1912 | D | 460 | 0 | 491 | |
| 1908 | D | 669 | 54 | 725 | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Calhoun County's population is roughly half Black, creating a demographic split that makes local and legislative contests more competitive than its R+14 presidential margin suggests.
The Democratic margin in Calhoun County has rarely exceeded 100 points in modern history; the Republican margin has rarely exceeded forty-eight points. 2024 delivered the county to the Republican candidate by fourteen points.
Calhoun County's demographics resemble the country more than they resemble most counties. A 55% non-Hispanic-white share, a 13% poverty rate, and a median household income of $58,682 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of Chickasaw County and Hidalgo County.
