| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 426 | 1,790 | 2,267 | |
| 2020 | R | 455 | 1,771 | 2,258 | |
| 2016 | R | 391 | 1,600 | 2,091 | |
| 2012 | R | 599 | 1,507 | 2,151 | |
| 2008 | R | 771 | 1,423 | 2,247 | |
| 2004 | R | 813 | 1,685 | 2,546 | |
| 2000 | D | 1,487 | 718 | 2,257 | |
| 1996 | R | 923 | 1,208 | 2,433 | |
| 1992 | R | 879 | 1,027 | 2,615 | |
| 1988 | R | 1,138 | 1,566 | 2,722 | |
| 1984 | R | 780 | 1,777 | 2,569 | |
| 1980 | R | 883 | 2,283 | 3,340 | |
| 1976 | D | 1,658 | 1,475 | 3,145 | |
| 1972 | R | 1,555 | 1,670 | 3,237 | |
| 1968 | R | 1,266 | 1,810 | 3,327 | |
| 1964 | D | 1,995 | 1,644 | 3,639 | |
| 1960 | R | 1,778 | 2,063 | 3,841 | |
| 1956 | R | 1,795 | 1,945 | 3,740 | |
| 1952 | R | 1,372 | 2,463 | 3,835 | |
| 1948 | D | 1,793 | 1,723 | 3,562 | |
| 1944 | R | 1,613 | 2,067 | 3,680 | |
| 1940 | R | 2,035 | 2,478 | 4,513 | |
| 1936 | D | 2,603 | 1,868 | 4,545 | |
| 1932 | D | 3,278 | 1,169 | 4,472 | |
| 1928 | R | 2,001 | 2,274 | 4,287 | |
| 1924 | R | 818 | 1,643 | 3,683 | |
| 1920 | R | 744 | 1,833 | 3,182 | |
| 1916 | D | 1,434 | 1,242 | 2,765 | |
| 1912 | D | 1,176 | 0 | 2,645 | |
| 1908 | R | 1,266 | 1,550 | 2,934 | |
| 1904 | R | 282 | 675 | 1,006 | |
| 1900 | R | 259 | 323 | 587 | |
| 1896 | D | 116 | 110 | 226 | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Gregory County's sparse population and deep agricultural roots produce margins that routinely rank among the widest in the state, with the 2024 presidential contest settled by more than 60 points.
The Democratic margin in Gregory County peaked at forty-seven points in 1932. By 2004 the county had flipped, voting Republican for the first time in many years. The 2024 margin was sixty points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Gregory County's median household income of $62,917 sits well below state and national norms, and 10% 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 Fall River County and Turner County.