| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 290 | 2,866 | 3,177 | |
| 2020 | R | 297 | 2,779 | 3,122 | |
| 2016 | R | 249 | 2,620 | 2,964 | |
| 2012 | R | 292 | 2,451 | 2,778 | |
| 2008 | R | 406 | 2,548 | 2,980 | |
| 2004 | R | 485 | 2,450 | 2,944 | |
| 2000 | R | 480 | 2,216 | 2,742 | |
| 1996 | R | 742 | 1,742 | 2,730 | |
| 1992 | R | 825 | 1,647 | 3,057 | |
| 1988 | R | 1,034 | 2,100 | 3,148 | |
| 1984 | R | 826 | 2,412 | 3,254 | |
| 1980 | R | 1,006 | 1,888 | 2,942 | |
| 1976 | D | 1,542 | 1,269 | 2,824 | |
| 1972 | R | 561 | 1,868 | 2,466 | |
| 1968 | R | 904 | 1,211 | 2,685 | |
| 1964 | D | 1,574 | 1,044 | 2,621 | |
| 1960 | R | 1,009 | 1,387 | 2,407 | |
| 1956 | R | 976 | 1,061 | 2,044 | |
| 1952 | R | 1,071 | 1,471 | 2,552 | |
| 1948 | D | 1,301 | 413 | 1,754 | |
| 1944 | D | 1,216 | 446 | 1,763 | |
| 1940 | D | 1,636 | 362 | 2,000 | |
| 1936 | D | 1,568 | 147 | 1,728 | |
| 1932 | D | 1,391 | 212 | 1,603 | |
| 1928 | R | 592 | 891 | 1,484 | |
| 1924 | D | 611 | 306 | 952 | |
| 1920 | D | 428 | 208 | 647 | |
| 1916 | D | 326 | 78 | 414 | |
| 1912 | D | 200 | 21 | 320 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Carson County's 2024 presidential margin of R+81.1 places it among the most one-sided counties in Texas, reflecting the Panhandle's sparse, agriculture-anchored population where statewide competitive races rarely register locally.
The unraveling was not abrupt. The Democratic margin in Carson County peaked at eighty-two points in 1936; it narrowed steadily over the late twentieth century. The 1980 election delivered the county to the Republican party for the first time in many years, by a margin of thirty points. By 2024, the margin had widened further.
The economic and demographic context is severe. Carson County's median household income of $85,231 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 Comanche County and Austin County.