| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,501 | 6,230 | 7,851 | |
| 2020 | R | 1,531 | 5,783 | 7,503 | |
| 2016 | R | 1,434 | 5,336 | 6,927 | |
| 2012 | R | 2,037 | 4,774 | 7,051 | |
| 2008 | R | 2,384 | 4,524 | 7,162 | |
| 2004 | R | 2,602 | 4,127 | 6,867 | |
| 2000 | R | 2,233 | 3,402 | 6,015 | |
| 1996 | D | 2,735 | 2,312 | 6,125 | |
| 1992 | D | 2,757 | 2,023 | 6,245 | |
| 1988 | R | 2,033 | 2,993 | 5,178 | |
| 1984 | R | 1,945 | 3,545 | 5,524 | |
| 1980 | R | 2,046 | 3,059 | 5,356 | |
| 1976 | D | 2,979 | 2,045 | 5,024 | |
| 1972 | R | 1,108 | 2,331 | 3,497 | |
| 1968 | R | 990 | 1,385 | 3,252 | |
| 1964 | D | 1,661 | 1,088 | 2,759 | |
| 1960 | R | 968 | 1,016 | 2,008 | |
| 1956 | D | 1,061 | 857 | 1,922 | |
| 1952 | D | 1,099 | 844 | 1,960 | |
| 1948 | D | 1,133 | 381 | 1,561 | |
| 1944 | D | 842 | 414 | 1,268 | |
| 1940 | D | 864 | 320 | 1,201 | |
| 1936 | D | 989 | 435 | 1,440 | |
| 1932 | D | 1,282 | 235 | 1,599 | |
| 1928 | D | 731 | 436 | 1,173 | |
| 1924 | D | 825 | 282 | 1,308 | |
| 1920 | D | 744 | 371 | 1,297 | |
| 1916 | D | 781 | 274 | 1,055 | |
| 1912 | D | 537 | 160 | 999 | |
| 1908 | D | 705 | 370 | 1,159 | |
| 1904 | D | 580 | 356 | 952 | |
| 1900 | D | 905 | 375 | 1,286 | |
| 1896 | D | 1,212 | 336 | 1,576 | |
| 1892 | D | 965 | 263 | 1,286 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Marion County, anchored by the resort town of Yellville on Bull Shoals Lake, delivered a 60-point Republican margin in 2024 — consistent with a broader pattern of overwhelming GOP dominance across rural Ozark counties in northern Arkansas.
The unraveling was not abrupt. The Democratic margin in Marion County peaked at sixty-five points in 1932; it narrowed steadily over the late twentieth century. The 2000 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 widened further.
The economic and demographic context is severe. Marion County's median household income of $48,619 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 Sequatchie County and Chattooga County.