| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 219 | 3,120 | 3,362 | |
| 2020 | R | 324 | 3,671 | 4,039 | |
| 2016 | R | 323 | 3,256 | 3,692 | |
| 2012 | R | 408 | 3,260 | 3,744 | |
| 2008 | R | 613 | 3,089 | 3,793 | |
| 2004 | R | 1,367 | 3,190 | 4,640 | |
| 2000 | R | 1,435 | 2,593 | 4,183 | |
| 1996 | D | 2,103 | 1,365 | 4,148 | |
| 1992 | D | 1,985 | 1,329 | 4,338 | |
| 1988 | D | 2,257 | 1,775 | 4,070 | |
| 1984 | R | 1,608 | 2,265 | 3,906 | |
| 1980 | D | 2,221 | 1,449 | 3,798 | |
| 1976 | D | 2,432 | 819 | 3,338 | |
| 1972 | R | 739 | 1,391 | 2,284 | |
| 1968 | D | 533 | 405 | 2,593 | |
| 1964 | R | 871 | 1,576 | 2,447 | |
| 1960 | D | 1,944 | 322 | 2,340 | |
| 1956 | D | 794 | 547 | 1,360 | |
| 1952 | D | 1,005 | 684 | 1,689 | |
| 1948 | D | 742 | 87 | 1,123 | |
| 1944 | D | 1,025 | 86 | 1,111 | |
| 1940 | D | 1,175 | 48 | 1,223 | |
| 1936 | D | 1,067 | 16 | 1,083 | |
| 1932 | D | 938 | 10 | 948 | |
| 1928 | D | 390 | 41 | 431 | |
| 1924 | D | 353 | 20 | 373 | |
| 1920 | D | 146 | 11 | 157 | |
| 1916 | D | 163 | 10 | 173 | |
| 1912 | D | 119 | 13 | 141 | |
| 1908 | D | 280 | 15 | 297 | |
| 1904 | D | 178 | 15 | 196 | |
| 1900 | D | 185 | 72 | 257 | |
| 1896 | D | 251 | 37 | 294 | |
| 1892 | D | 184 | 5 | 189 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Cameron Parish, a sparsely populated stretch of Louisiana Gulf Coast, recorded an R+86.3 margin in 2024 — among the widest presidential gaps nationally — reflecting a rural, energy-sector workforce that has shifted decisively over recent cycles.
The unraveling was not abrupt. The Democratic margin in Cameron Parish peaked at ninety-eight 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-eight points. By 2024, the margin had widened further.
The economic and demographic context is severe. Cameron Parish's median household income of $75,278 is among the lowest of any county in the United States; 7% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Acadia Parish and Sabine County.
