| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,094 | 8,679 | 10,937 | |
| 2020 | R | 2,404 | 8,582 | 11,129 | |
| 2016 | R | 2,080 | 7,942 | 10,398 | |
| 2012 | R | 2,987 | 6,470 | 9,646 | |
| 2008 | R | 4,059 | 5,687 | 9,938 | |
| 2004 | R | 3,627 | 6,311 | 10,028 | |
| 2000 | R | 3,303 | 5,413 | 8,882 | |
| 1996 | D | 3,487 | 3,475 | 8,072 | |
| 1992 | D | 4,022 | 3,385 | 8,865 | |
| 1988 | R | 3,612 | 4,910 | 8,545 | |
| 1984 | R | 3,253 | 5,119 | 8,417 | |
| 1980 | R | 3,486 | 5,272 | 8,921 | |
| 1976 | R | 3,508 | 3,764 | 7,337 | |
| 1972 | R | 906 | 2,392 | 3,334 | |
| 1968 | R | 1,695 | 3,504 | 6,470 | |
| 1964 | D | 3,303 | 2,979 | 6,287 | |
| 1960 | R | 2,420 | 5,230 | 7,650 | |
| 1956 | R | 2,726 | 4,901 | 7,649 | |
| 1952 | R | 2,700 | 4,428 | 7,142 | |
| 1948 | R | 2,721 | 3,300 | 6,106 | |
| 1944 | R | 3,131 | 4,494 | 7,657 | |
| 1940 | R | 3,729 | 4,451 | 8,204 | |
| 1936 | R | 4,030 | 4,532 | 8,589 | |
| 1932 | R | 4,870 | 4,880 | 9,934 | |
| 1928 | R | 2,784 | 5,690 | 8,514 | |
| 1924 | R | 3,817 | 4,267 | 8,425 | |
| 1920 | R | 4,011 | 5,371 | 9,571 | |
| 1916 | R | 2,723 | 3,286 | 6,213 | |
| 1912 | D | 2,563 | 1,150 | 5,899 | |
| 1908 | R | 2,785 | 3,337 | 6,301 | |
| 1904 | R | 2,519 | 3,063 | 5,802 | |
| 1900 | R | 2,891 | 3,251 | 6,245 | |
| 1896 | D | 2,679 | 2,653 | 5,509 | |
| 1892 | D | 1,664 | 1,581 | 4,262 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Ohio County delivered a 60-point Republican margin in 2024, reflecting the lopsided partisan alignment that has reshaped rural western Kentucky over the past two decades as manufacturing and agricultural economies contracted.
The Republican margin in Ohio County reached its widest at sixty points in 2024. The margin in 2024 was sixty points, in line with the county's deep historical pattern.
Ohio County's loyalty is rooted in its place. Median household income of $57,798, a 92% non-Hispanic-white share, and a population of 23,735 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 Jasper County and Cumberland County.
