| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,060 | 3,258 | 4,348 | |
| 2020 | R | 1,269 | 3,541 | 4,858 | |
| 2016 | R | 1,322 | 3,479 | 4,856 | |
| 2012 | R | 1,408 | 2,744 | 4,193 | |
| 2008 | R | 1,659 | 3,486 | 5,225 | |
| 2004 | R | 1,673 | 3,219 | 4,954 | |
| 2000 | R | 1,718 | 2,912 | 4,765 | |
| 1996 | D | 2,692 | 1,770 | 5,166 | |
| 1992 | D | 2,570 | 1,976 | 5,471 | |
| 1988 | R | 1,916 | 2,862 | 4,950 | |
| 1984 | R | 1,649 | 3,640 | 5,391 | |
| 1980 | R | 2,414 | 2,942 | 5,531 | |
| 1976 | D | 2,547 | 2,086 | 4,767 | |
| 1972 | R | 823 | 2,683 | 3,668 | |
| 1968 | D | 769 | 755 | 4,201 | |
| 1964 | D | 2,387 | 560 | 2,947 | |
| 1960 | R | 558 | 971 | 2,132 | |
| 1956 | R | 707 | 845 | 1,802 | |
| 1952 | D | 1,336 | 884 | 2,220 | |
| 1948 | D | 515 | 86 | 1,666 | |
| 1944 | D | 1,208 | 291 | 1,499 | |
| 1940 | D | 1,512 | 134 | 1,646 | |
| 1936 | D | 1,363 | 98 | 1,461 | |
| 1932 | D | 1,340 | 29 | 1,369 | |
| 1928 | D | 710 | 341 | 1,051 | |
| 1924 | D | 218 | 78 | 296 | |
| 1920 | D | 517 | 176 | 693 | |
| 1916 | D | 459 | 20 | 480 | |
| 1912 | D | 275 | 11 | 372 | |
| 1908 | D | 660 | 88 | 863 | |
| 1904 | D | 514 | 124 | 648 | |
| 1900 | D | 526 | 144 | 670 | |
| 1896 | D | 811 | 74 | 888 | |
| 1892 | D | 1,081 | 439 | 1,520 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Catahoula Parish sits along the Ouachita River basin with a population under 11,000, and its presidential margins have grown steadily more one-sided over the past two decades as rural realignment reshaped north-central Louisiana.
The unraveling was not abrupt. The Democratic margin in Catahoula Parish peaked at ninety-six 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 twenty-five points. By 2024, the margin had widened further.
The economic and demographic context is severe. Catahoula Parish's median household income of $50,275 is among the lowest of any county in the United States; 24% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Winn Parish and Iberia Parish.
