| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 395 | 1,793 | 2,220 | |
| 2020 | R | 518 | 1,936 | 2,501 | |
| 2016 | R | 441 | 1,804 | 2,389 | |
| 2012 | R | 456 | 1,811 | 2,306 | |
| 2008 | R | 635 | 1,995 | 2,661 | |
| 2004 | R | 561 | 2,169 | 2,758 | |
| 2000 | R | 683 | 2,126 | 2,856 | |
| 1996 | R | 633 | 1,772 | 2,664 | |
| 1992 | R | 619 | 1,561 | 3,019 | |
| 1988 | R | 907 | 1,654 | 2,597 | |
| 1984 | R | 615 | 2,043 | 2,679 | |
| 1980 | R | 683 | 1,711 | 2,592 | |
| 1976 | R | 1,151 | 1,226 | 2,422 | |
| 1972 | R | 476 | 1,469 | 2,007 | |
| 1968 | R | 618 | 1,121 | 1,961 | |
| 1964 | D | 1,023 | 727 | 1,775 | |
| 1960 | R | 702 | 1,235 | 1,942 | |
| 1956 | R | 459 | 1,058 | 1,523 | |
| 1952 | R | 502 | 1,277 | 1,798 | |
| 1948 | R | 625 | 742 | 1,391 | |
| 1944 | R | 282 | 566 | 853 | |
| 1940 | R | 382 | 614 | 1,006 | |
| 1936 | D | 616 | 476 | 1,092 | |
| 1932 | D | 737 | 395 | 1,172 | |
| 1928 | R | 185 | 635 | 831 | |
| 1924 | R | 148 | 459 | 684 | |
| 1920 | R | 108 | 339 | 460 | |
| 1916 | D | 208 | 200 | 449 | |
| 1912 | D | 80 | 56 | 269 | |
| 1908 | R | 133 | 178 | 325 | |
| 1904 | R | 35 | 81 | 123 | |
| 1900 | R | 53 | 58 | 112 | |
| 1896 | D | 60 | 51 | 111 | |
| 1892 | R | 0 | 131 | 282 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Grant County's R+63 presidential margin in 2024 places it among the most Republican-leaning counties in Kansas, reflecting the high-plains agricultural economy and sparse population that define its southwestern corner of the state.
The Republican margin in Grant County reached its widest at sixty-three points in 2024. The margin in 2024 was sixty-three points, in line with the county's deep historical pattern.
Grant County's loyalty is rooted in its place. Median household income of $66,476, a 61% non-Hispanic-white share, and a population of 7,229 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 Meade County and Stanton County.
