| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 396 | 2,001 | 2,455 | |
| 2020 | R | 424 | 2,182 | 2,657 | |
| 2016 | R | 375 | 2,024 | 2,529 | |
| 2012 | R | 477 | 2,134 | 2,686 | |
| 2008 | R | 640 | 1,978 | 2,671 | |
| 2004 | R | 607 | 2,238 | 2,889 | |
| 2000 | R | 604 | 2,239 | 2,985 | |
| 1996 | R | 688 | 2,283 | 3,263 | |
| 1992 | R | 939 | 1,767 | 3,806 | |
| 1988 | R | 1,069 | 2,346 | 3,462 | |
| 1984 | R | 887 | 3,009 | 3,934 | |
| 1980 | R | 850 | 3,031 | 4,120 | |
| 1976 | R | 1,617 | 2,294 | 3,994 | |
| 1972 | R | 1,059 | 2,921 | 4,068 | |
| 1968 | R | 1,187 | 2,841 | 4,288 | |
| 1964 | R | 2,222 | 2,414 | 4,674 | |
| 1960 | R | 1,724 | 3,358 | 5,117 | |
| 1956 | R | 1,613 | 3,621 | 5,266 | |
| 1952 | R | 1,358 | 4,573 | 5,961 | |
| 1948 | R | 2,109 | 3,375 | 5,586 | |
| 1944 | R | 1,891 | 3,802 | 5,715 | |
| 1940 | R | 2,511 | 4,450 | 7,003 | |
| 1936 | R | 3,427 | 3,830 | 7,280 | |
| 1932 | D | 4,105 | 2,655 | 6,887 | |
| 1928 | R | 1,956 | 4,324 | 6,341 | |
| 1924 | R | 1,616 | 3,671 | 6,122 | |
| 1920 | R | 1,672 | 3,661 | 5,440 | |
| 1916 | D | 3,806 | 2,882 | 6,920 | |
| 1912 | D | 1,816 | 895 | 4,116 | |
| 1908 | R | 1,905 | 2,156 | 4,163 | |
| 1904 | R | 941 | 2,658 | 3,824 | |
| 1900 | R | 1,925 | 2,499 | 4,489 | |
| 1896 | R | 1,910 | 2,033 | 3,992 | |
| 1892 | R | 0 | 2,049 | 4,331 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Republic County's 2024 presidential margin of R+65.7 reflects a pattern common to sparsely populated Great Plains counties, where a shrinking rural population and deep agricultural roots have driven Republican margins consistently above 60 points for over a decade.
The Republican margin in Republic County reached its widest at sixty-six points in 2020. The margin in 2024 was sixty-five points, in line with the county's deep historical pattern.
Republic County's loyalty is rooted in its place. Median household income of $56,833, a 94% non-Hispanic-white share, and a population of 4,646 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 Washington County and Garfield County.
