| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,278 | 4,041 | 5,389 | |
| 2020 | R | 1,573 | 3,986 | 5,627 | |
| 2016 | R | 1,361 | 3,082 | 4,587 | |
| 2012 | R | 1,770 | 2,275 | 4,122 | |
| 2008 | R | 2,210 | 2,234 | 4,543 | |
| 2004 | D | 2,608 | 2,269 | 4,919 | |
| 2000 | R | 2,087 | 2,303 | 4,473 | |
| 1996 | D | 1,886 | 1,229 | 3,570 | |
| 1992 | D | 2,229 | 1,259 | 4,204 | |
| 1988 | D | 2,099 | 1,614 | 3,724 | |
| 1984 | R | 1,781 | 2,020 | 3,820 | |
| 1980 | D | 2,174 | 1,463 | 3,698 | |
| 1976 | D | 2,113 | 938 | 3,071 | |
| 1972 | R | 1,347 | 1,919 | 3,282 | |
| 1968 | D | 1,394 | 1,277 | 3,331 | |
| 1964 | D | 2,571 | 1,009 | 3,587 | |
| 1960 | D | 2,066 | 1,888 | 3,954 | |
| 1956 | D | 2,221 | 1,889 | 4,125 | |
| 1952 | D | 2,400 | 1,737 | 4,142 | |
| 1948 | D | 2,287 | 1,276 | 3,591 | |
| 1944 | D | 2,184 | 1,581 | 3,773 | |
| 1940 | D | 2,528 | 1,636 | 4,176 | |
| 1936 | D | 2,795 | 1,725 | 4,530 | |
| 1932 | D | 2,909 | 1,576 | 4,505 | |
| 1928 | R | 1,830 | 2,223 | 4,061 | |
| 1924 | D | 2,093 | 1,723 | 3,837 | |
| 1920 | D | 2,440 | 1,997 | 4,459 | |
| 1916 | D | 1,796 | 1,360 | 3,180 | |
| 1912 | D | 1,477 | 1,002 | 2,757 | |
| 1908 | D | 1,754 | 1,471 | 3,277 | |
| 1904 | D | 1,503 | 1,342 | 2,896 | |
| 1900 | D | 1,836 | 1,654 | 3,516 | |
| 1896 | D | 1,791 | 1,579 | 3,434 | |
| 1892 | D | 1,443 | 1,148 | 2,676 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Bath County's 2024 presidential margin of R+51.3 reflects a broader eastern Kentucky realignment that has made once-competitive rural counties among the most reliably Republican in the state.
The unraveling was not abrupt. The Democratic margin in Bath County peaked at forty-four points in 1964; it narrowed steadily over the late twentieth century. The 2008 election delivered the county to the Republican party for the first time in many years, by a margin of one points. By 2024, the margin had widened further.
The economic and demographic context is severe. Bath County's median household income of $56,541 is among the lowest of any county in the United States; 25% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Menifee County and Calhoun County.