| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 4,136 | 12,483 | 16,913 | |
| 2020 | R | 4,040 | 12,834 | 17,249 | |
| 2016 | R | 3,738 | 12,172 | 16,803 | |
| 2012 | R | 4,627 | 11,499 | 16,126 | |
| 2008 | R | 5,463 | 13,230 | 18,693 | |
| 2004 | R | 5,957 | 14,121 | 20,078 | |
| 2000 | R | 6,122 | 11,768 | 18,162 | |
| 1996 | R | 6,882 | 9,741 | 19,514 | |
| 1992 | R | 6,643 | 9,115 | 22,828 | |
| 1988 | R | 7,751 | 12,646 | 20,564 | |
| 1984 | R | 6,044 | 16,731 | 22,911 | |
| 1980 | R | 6,449 | 15,004 | 22,337 | |
| 1976 | R | 9,371 | 12,441 | 22,086 | |
| 1972 | R | 4,246 | 17,244 | 21,984 | |
| 1968 | R | 6,031 | 12,751 | 21,591 | |
| 1964 | R | 11,296 | 12,033 | 23,329 | |
| 1960 | R | 8,249 | 15,156 | 23,405 | |
| 1956 | R | 8,071 | 14,837 | 22,908 | |
| 1952 | R | 8,382 | 16,460 | 24,842 | |
| 1948 | D | 10,119 | 8,982 | 19,101 | |
| 1944 | R | 8,656 | 9,498 | 18,242 | |
| 1940 | D | 10,725 | 10,003 | 20,884 | |
| 1936 | D | 11,846 | 6,671 | 18,649 | |
| 1932 | D | 12,841 | 5,884 | 18,725 | |
| 1928 | R | 4,196 | 13,829 | 18,161 | |
| 1924 | R | 6,049 | 7,392 | 14,448 | |
| 1920 | R | 4,546 | 5,959 | 10,736 | |
| 1916 | R | 2,340 | 2,482 | 5,318 | |
| 1912 | R | 2,380 | 2,508 | 5,267 | |
| 1908 | R | 2,511 | 2,754 | 5,410 | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Kay County, anchored by Ponca City and its oil-industry roots, has delivered Republican presidential margins above 40 points in recent cycles, reflecting a rural, energy-sector workforce that tilts heavily toward the GOP.
The Republican margin in Kay County reached its widest at fifty-nine points in 1972. The margin in 2024 was forty-nine points, in line with the county's deep historical pattern.
Kay County's loyalty is rooted in its place. Median household income of $58,423, a 74% non-Hispanic-white share, and a population of 43,625 together describe a community whose political habits are deeply settled. The county's voting pattern over the last decade is most similar to that of Rusk County and Geneva County.
