| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 986 | 6,635 | 7,737 | |
| 2020 | R | 1,134 | 6,577 | 7,784 | |
| 2016 | R | 915 | 5,609 | 6,691 | |
| 2012 | R | 1,097 | 5,028 | 6,216 | |
| 2008 | R | 1,410 | 4,757 | 6,274 | |
| 2004 | R | 1,320 | 4,804 | 6,166 | |
| 2000 | R | 1,174 | 3,992 | 5,247 | |
| 1996 | R | 1,160 | 3,106 | 4,650 | |
| 1992 | R | 1,144 | 3,287 | 4,897 | |
| 1988 | R | 1,041 | 3,880 | 4,948 | |
| 1984 | R | 1,089 | 4,328 | 5,428 | |
| 1980 | R | 1,345 | 3,543 | 4,947 | |
| 1976 | R | 1,408 | 2,583 | 4,013 | |
| 1972 | R | 968 | 3,437 | 4,446 | |
| 1968 | R | 868 | 3,072 | 4,588 | |
| 1964 | R | 1,631 | 2,829 | 4,476 | |
| 1960 | R | 1,141 | 3,982 | 5,123 | |
| 1956 | R | 1,313 | 3,787 | 5,112 | |
| 1952 | R | 1,326 | 3,503 | 4,842 | |
| 1948 | R | 1,309 | 3,236 | 4,564 | |
| 1944 | R | 1,327 | 3,802 | 5,136 | |
| 1940 | R | 1,652 | 3,536 | 5,194 | |
| 1936 | R | 1,568 | 3,875 | 5,443 | |
| 1932 | R | 1,976 | 3,577 | 5,564 | |
| 1928 | R | 908 | 3,858 | 4,766 | |
| 1924 | R | 1,277 | 2,712 | 4,094 | |
| 1920 | R | 1,438 | 3,561 | 5,018 | |
| 1916 | R | 968 | 1,932 | 2,915 | |
| 1912 | R | 859 | 1,082 | 2,507 | |
| 1908 | R | 962 | 1,816 | 2,830 | |
| 1904 | R | 848 | 1,624 | 2,518 | |
| 1900 | R | 1,010 | 1,637 | 2,659 | |
| 1896 | R | 846 | 1,480 | 2,363 | |
| 1892 | R | 684 | 966 | 1,710 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Rockcastle County, a rural Appalachian county of roughly 16,500 residents, recorded an R+73.1 presidential margin in 2024, placing it among the most one-sided Republican counties in a state that has shifted dramatically rightward over the past two decades.
The Republican margin in Rockcastle County reached its widest at seventy-three points in 2024. The margin in 2024 was seventy-three points, in line with the county's deep historical pattern.
Rockcastle County's loyalty is rooted in its place. Median household income of $48,862, a 96% non-Hispanic-white share, and a population of 16,163 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 Monroe County and Russell County.
