| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 3,919 | 9,360 | 13,554 | |
| 2020 | R | 4,273 | 9,656 | 14,231 | |
| 2016 | R | 3,551 | 8,270 | 12,621 | |
| 2012 | R | 4,319 | 8,081 | 12,710 | |
| 2008 | R | 5,012 | 8,492 | 13,787 | |
| 2004 | R | 4,818 | 9,407 | 14,447 | |
| 2000 | R | 5,535 | 8,080 | 14,210 | |
| 1996 | R | 5,588 | 7,872 | 15,499 | |
| 1992 | R | 5,405 | 5,422 | 15,784 | |
| 1988 | R | 6,186 | 7,778 | 14,286 | |
| 1984 | R | 5,193 | 10,008 | 15,399 | |
| 1980 | R | 5,474 | 8,749 | 15,312 | |
| 1976 | R | 7,095 | 7,513 | 14,931 | |
| 1972 | R | 3,592 | 10,332 | 14,653 | |
| 1968 | R | 5,014 | 8,070 | 14,861 | |
| 1964 | D | 7,591 | 7,092 | 14,797 | |
| 1960 | R | 6,205 | 10,276 | 16,580 | |
| 1956 | R | 3,753 | 6,734 | 10,533 | |
| 1952 | R | 5,242 | 11,454 | 16,812 | |
| 1948 | R | 7,042 | 8,102 | 15,541 | |
| 1944 | R | 6,577 | 8,453 | 15,120 | |
| 1940 | R | 8,115 | 9,684 | 17,935 | |
| 1936 | D | 10,805 | 8,378 | 19,255 | |
| 1932 | D | 8,681 | 7,657 | 17,126 | |
| 1928 | R | 2,818 | 12,701 | 15,721 | |
| 1924 | R | 3,161 | 8,529 | 14,577 | |
| 1920 | R | 4,733 | 7,352 | 12,414 | |
| 1916 | D | 5,962 | 5,297 | 12,075 | |
| 1912 | D | 2,539 | 1,113 | 7,066 | |
| 1908 | D | 2,995 | 2,578 | 6,078 | |
| 1904 | R | 1,456 | 3,961 | 6,459 | |
| 1900 | R | 3,436 | 3,679 | 7,289 | |
| 1896 | D | 3,410 | 2,871 | 6,360 | |
| 1892 | R | 0 | 3,896 | 7,909 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Cowley County anchors the Arkansas River corridor near the Oklahoma border, where a rural, agriculture-rooted electorate has delivered consistent and widening Republican supermajorities across successive presidential cycles.
The Democratic margin in Cowley County peaked at twenty points in 1912. By 1968 the county had flipped, voting Republican for the first time in many years. The 2024 margin was forty points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Cowley County's median household income of $57,878 sits well below state and national norms, and 14% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country. The county's voting pattern over the last decade is most similar to that of Sumner County and Jefferson County.