| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,638 | 1,805 | 3,505 | |
| 2020 | D | 2,016 | 1,921 | 4,164 | |
| 2016 | D | 2,228 | 1,919 | 4,191 | |
| 2012 | D | 2,443 | 1,896 | 4,420 | |
| 2008 | D | 2,569 | 1,999 | 4,678 | |
| 2004 | D | 2,851 | 1,729 | 4,647 | |
| 2000 | D | 2,776 | 1,603 | 4,495 | |
| 1996 | D | 3,230 | 978 | 4,553 | |
| 1992 | D | 3,815 | 1,279 | 5,621 | |
| 1988 | D | 2,859 | 2,334 | 5,435 | |
| 1984 | D | 2,918 | 2,696 | 5,878 | |
| 1980 | D | 3,748 | 2,057 | 6,037 | |
| 1976 | D | 4,228 | 1,372 | 5,600 | |
| 1972 | R | 1,665 | 3,385 | 5,058 | |
| 1968 | D | 2,270 | 972 | 5,716 | |
| 1964 | D | 3,294 | 1,930 | 5,236 | |
| 1960 | D | 2,502 | 1,063 | 3,936 | |
| 1956 | D | 2,935 | 1,204 | 4,191 | |
| 1952 | D | 3,150 | 1,037 | 4,192 | |
| 1948 | D | 2,122 | 233 | 3,033 | |
| 1944 | D | 1,175 | 186 | 1,362 | |
| 1940 | D | 1,370 | 146 | 1,526 | |
| 1936 | D | 1,411 | 55 | 1,468 | |
| 1932 | D | 1,549 | 81 | 1,639 | |
| 1928 | D | 1,082 | 331 | 1,415 | |
| 1924 | D | 540 | 209 | 970 | |
| 1920 | D | 931 | 360 | 1,314 | |
| 1916 | D | 960 | 369 | 1,329 | |
| 1912 | D | 314 | 52 | 540 | |
| 1908 | D | 518 | 263 | 792 | |
| 1904 | D | 204 | 82 | 287 | |
| 1900 | D | 328 | 168 | 505 | |
| 1896 | D | 396 | 290 | 716 | |
| 1892 | D | 407 | 298 | 741 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Desha County sits in the Arkansas Delta lowlands, where a substantial Black population and a declining rural white working class have historically produced competitive results — though the 2024 presidential margin settled at R+4.8, reflecting a decade-long rightward drift in small Delta counties.
The Democratic margin in Desha County has rarely exceeded ninety-two points in modern history; the Republican margin has rarely exceeded thirty-four points. 2024 delivered the county to the Republican candidate by five points.
Desha County's demographics resemble the country more than they resemble most counties. A 44% non-Hispanic-white share, a 28% poverty rate, and a median household income of $37,662 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of Chicot County and St. Francis County.
