| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 6,291 | 14,363 | 20,951 | |
| 2020 | R | 7,083 | 14,295 | 21,751 | |
| 2016 | R | 6,021 | 13,591 | 20,454 | |
| 2012 | R | 7,776 | 10,884 | 19,049 | |
| 2008 | R | 8,886 | 11,430 | 20,670 | |
| 2004 | R | 10,132 | 11,501 | 21,777 | |
| 2000 | D | 9,541 | 9,247 | 19,182 | |
| 1996 | D | 9,668 | 7,054 | 18,893 | |
| 1992 | D | 10,496 | 7,387 | 21,147 | |
| 1988 | D | 9,552 | 9,379 | 18,988 | |
| 1984 | R | 9,601 | 10,925 | 20,621 | |
| 1980 | D | 10,702 | 10,367 | 21,695 | |
| 1976 | D | 11,150 | 9,106 | 20,459 | |
| 1972 | R | 6,434 | 12,812 | 19,437 | |
| 1968 | R | 7,914 | 8,632 | 19,001 | |
| 1964 | D | 11,436 | 6,941 | 18,437 | |
| 1960 | R | 9,094 | 11,305 | 20,399 | |
| 1956 | R | 8,546 | 11,502 | 20,082 | |
| 1952 | R | 10,245 | 10,426 | 20,720 | |
| 1948 | D | 9,006 | 6,707 | 15,844 | |
| 1944 | D | 8,130 | 6,868 | 15,040 | |
| 1940 | D | 9,868 | 7,322 | 17,265 | |
| 1936 | D | 9,762 | 6,650 | 16,492 | |
| 1932 | D | 8,315 | 6,853 | 15,343 | |
| 1928 | R | 4,611 | 9,118 | 13,736 | |
| 1924 | R | 4,079 | 6,062 | 10,913 | |
| 1920 | R | 5,103 | 6,334 | 11,563 | |
| 1916 | R | 2,738 | 2,883 | 5,743 | |
| 1912 | D | 1,772 | 1,271 | 4,521 | |
| 1908 | R | 1,950 | 2,894 | 4,964 | |
| 1904 | R | 1,716 | 2,544 | 4,365 | |
| 1900 | R | 1,514 | 1,995 | 3,534 | |
| 1896 | R | 1,241 | 2,087 | 3,407 | |
| 1892 | D | 1,537 | 1,526 | 3,124 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Boyd County sits at the confluence of the Big Sandy and Ohio rivers, anchoring a small urban core around Ashland. Once a union-heavy Democratic stronghold tied to steel and coal, it has shifted decisively rightward over the past three election cycles.
The Republican margin in Boyd County reached its widest at thirty-nine points in 2024. The margin in 2024 was thirty-nine points, in line with the county's deep historical pattern.
Boyd County's loyalty is rooted in its place. Median household income of $61,118, a 93% non-Hispanic-white share, and a population of 47,911 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 Greenup County and Lewis County.
