| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 4,711 | 2,008 | 6,790 | |
| 2020 | D | 6,020 | 2,375 | 8,501 | |
| 2016 | D | 6,378 | 2,426 | 8,912 | |
| 2012 | D | 7,792 | 2,712 | 10,549 | |
| 2008 | D | 7,597 | 2,917 | 10,568 | |
| 2004 | D | 6,805 | 3,676 | 10,608 | |
| 2000 | D | 5,662 | 3,695 | 9,553 | |
| 1996 | D | 5,776 | 3,441 | 9,611 | |
| 1992 | D | 6,409 | 4,120 | 11,180 | |
| 1988 | D | 6,139 | 4,939 | 11,278 | |
| 1984 | D | 6,839 | 5,759 | 12,810 | |
| 1980 | D | 7,030 | 4,592 | 12,015 | |
| 1976 | D | 6,412 | 4,269 | 11,113 | |
| 1972 | R | 3,708 | 6,602 | 10,725 | |
| 1968 | D | 5,352 | 1,875 | 10,898 | |
| 1964 | R | 964 | 4,172 | 5,136 | |
| 1960 | D | 1,386 | 1,096 | 3,867 | |
| 1956 | D | 1,677 | 1,082 | 3,299 | |
| 1952 | D | 2,115 | 1,619 | 3,734 | |
| 1948 | D | 246 | 113 | 2,319 | |
| 1944 | D | 2,392 | 191 | 2,583 | |
| 1940 | D | 2,440 | 137 | 2,577 | |
| 1936 | D | 2,059 | 49 | 2,108 | |
| 1932 | D | 1,672 | 62 | 1,737 | |
| 1928 | D | 1,778 | 223 | 2,001 | |
| 1924 | D | 1,362 | 121 | 1,483 | |
| 1920 | D | 882 | 61 | 953 | |
| 1916 | D | 697 | 21 | 721 | |
| 1912 | D | 396 | 16 | 440 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | D | 266 | 77 | 347 | |
| 1896 | D | 347 | 83 | 443 | |
| 1892 | D | 272 | 33 | 341 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Coahoma County, anchored by Clarksdale in the Mississippi Delta, is roughly 75% Black — a demographic concentration that has driven presidential margins exceeding 30 points Democratic in every recent election cycle.
The unraveling was not abrupt. The Democratic margin in Coahoma County peaked at ninety-five points in 1936; it narrowed steadily over the late twentieth century. The 1976 election delivered the county to the Republican party for the first time in many years, by a margin of nineteen points. By 2024, the margin had settled into deep Republican territory.
The economic and demographic context is severe. Coahoma County's median household income of $37,461 is among the lowest of any county in the United States; 36% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Humphreys County and Sunflower County.