| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,257 | 7,643 | 8,974 | |
| 2020 | R | 1,392 | 7,276 | 8,768 | |
| 2016 | R | 1,323 | 6,637 | 8,233 | |
| 2012 | R | 1,660 | 5,841 | 7,600 | |
| 2008 | R | 1,668 | 5,512 | 7,298 | |
| 2004 | R | 1,764 | 5,628 | 7,447 | |
| 2000 | R | 1,779 | 5,460 | 7,328 | |
| 1996 | R | 1,821 | 3,876 | 6,538 | |
| 1992 | R | 2,044 | 3,740 | 6,424 | |
| 1988 | R | 1,723 | 4,346 | 6,113 | |
| 1984 | R | 1,812 | 4,500 | 6,344 | |
| 1980 | R | 2,285 | 4,051 | 6,418 | |
| 1976 | R | 2,366 | 3,201 | 5,634 | |
| 1972 | R | 1,610 | 3,859 | 5,531 | |
| 1968 | R | 1,362 | 3,239 | 5,450 | |
| 1964 | R | 2,854 | 3,052 | 5,927 | |
| 1960 | R | 2,269 | 4,621 | 6,890 | |
| 1956 | R | 2,491 | 4,157 | 6,651 | |
| 1952 | R | 2,184 | 3,737 | 5,927 | |
| 1948 | R | 2,144 | 2,839 | 5,036 | |
| 1944 | R | 2,411 | 3,414 | 5,847 | |
| 1940 | R | 2,711 | 3,674 | 6,398 | |
| 1936 | R | 2,669 | 3,371 | 6,050 | |
| 1932 | D | 3,251 | 3,084 | 6,347 | |
| 1928 | R | 1,732 | 3,856 | 5,588 | |
| 1924 | R | 2,368 | 2,757 | 5,163 | |
| 1920 | R | 2,725 | 3,526 | 6,265 | |
| 1916 | R | 1,675 | 1,863 | 3,553 | |
| 1912 | D | 1,398 | 786 | 3,217 | |
| 1908 | R | 1,429 | 1,872 | 3,367 | |
| 1904 | R | 1,327 | 1,652 | 3,044 | |
| 1900 | R | 1,452 | 1,713 | 3,189 | |
| 1896 | R | 1,345 | 1,612 | 3,019 | |
| 1892 | R | 1,024 | 1,119 | 2,372 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Adair County, in Kentucky's south-central Pennyrile region, recorded a 71-point Republican presidential margin in 2024, placing it among the state's most one-sided jurisdictions. Its population of roughly 17,000 has trended steadily toward consolidated single-party outcomes over the past two decades.
The Republican margin in Adair County reached its widest at seventy-one points in 2024. The margin in 2024 was seventy-one points, in line with the county's deep historical pattern.
Adair County's loyalty is rooted in its place. Median household income of $53,553, a 91% non-Hispanic-white share, and a population of 19,089 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 Eureka County and Garfield County.