| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,069 | 7,102 | 9,263 | |
| 2020 | R | 2,156 | 6,876 | 9,176 | |
| 2016 | R | 1,950 | 5,910 | 8,212 | |
| 2012 | R | 2,730 | 4,660 | 7,558 | |
| 2008 | R | 3,192 | 4,462 | 7,795 | |
| 2004 | R | 3,047 | 4,320 | 7,498 | |
| 2000 | R | 3,004 | 3,574 | 6,820 | |
| 1996 | D | 3,196 | 2,566 | 6,726 | |
| 1992 | D | 3,346 | 3,023 | 7,632 | |
| 1988 | R | 3,042 | 3,490 | 6,648 | |
| 1984 | R | 3,047 | 4,340 | 7,460 | |
| 1980 | D | 3,627 | 2,978 | 6,940 | |
| 1976 | D | 3,779 | 2,731 | 6,739 | |
| 1972 | R | 1,869 | 3,671 | 5,706 | |
| 1968 | R | 2,045 | 2,722 | 6,277 | |
| 1964 | D | 3,133 | 1,952 | 5,167 | |
| 1960 | D | 2,214 | 2,030 | 4,327 | |
| 1956 | R | 2,016 | 2,270 | 4,379 | |
| 1952 | R | 1,717 | 1,935 | 3,655 | |
| 1948 | D | 1,529 | 1,448 | 3,115 | |
| 1944 | D | 1,703 | 1,203 | 2,910 | |
| 1940 | D | 1,716 | 1,024 | 2,744 | |
| 1936 | D | 1,547 | 1,047 | 2,596 | |
| 1932 | D | 1,754 | 1,016 | 2,802 | |
| 1928 | R | 1,293 | 1,313 | 2,606 | |
| 1924 | D | 1,319 | 852 | 2,230 | |
| 1920 | D | 1,104 | 877 | 1,987 | |
| 1916 | D | 839 | 596 | 1,440 | |
| 1912 | D | 725 | 267 | 1,246 | |
| 1908 | D | 705 | 605 | 1,327 | |
| 1904 | D | 721 | 588 | 1,342 | |
| 1900 | D | 1,010 | 858 | 1,904 | |
| 1896 | D | 993 | 777 | 1,836 | |
| 1892 | D | 1,059 | 399 | 1,623 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Nestled in Virginia's Ridge and Valley region, Giles County has shifted dramatically rightward over the past decade, delivering some of the state's widest presidential margins despite a small, rural population anchored by the New River corridor.
The Democratic margin in Giles County peaked at forty-one points in 1892. By 2000 the county had flipped, voting Republican for the first time in many years. The 2024 margin was fifty-four points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Giles County's median household income of $65,691 sits well below state and national norms, and 9% 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 Bates County and Jackson County.