| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 21,065 | 34,862 | 56,891 | |
| 2020 | R | 22,479 | 31,791 | 55,401 | |
| 2016 | R | 16,966 | 28,673 | 48,454 | |
| 2012 | R | 16,805 | 26,384 | 43,903 | |
| 2008 | R | 17,669 | 25,993 | 44,145 | |
| 2004 | R | 14,326 | 25,100 | 39,711 | |
| 2000 | R | 12,180 | 20,235 | 32,975 | |
| 1996 | R | 11,642 | 15,784 | 29,406 | |
| 1992 | R | 11,529 | 14,748 | 29,896 | |
| 1988 | R | 9,684 | 16,703 | 26,484 | |
| 1984 | R | 7,937 | 16,167 | 24,178 | |
| 1980 | R | 9,643 | 12,184 | 22,604 | |
| 1976 | D | 9,657 | 9,439 | 19,291 | |
| 1972 | R | 5,934 | 12,481 | 18,691 | |
| 1968 | R | 5,200 | 8,084 | 17,665 | |
| 1964 | D | 9,887 | 5,915 | 15,831 | |
| 1960 | R | 7,457 | 9,074 | 16,531 | |
| 1956 | R | 7,143 | 8,123 | 15,310 | |
| 1952 | R | 7,106 | 7,267 | 14,407 | |
| 1948 | D | 6,768 | 3,919 | 11,189 | |
| 1944 | D | 7,528 | 4,944 | 12,509 | |
| 1940 | D | 7,569 | 4,195 | 11,800 | |
| 1936 | D | 8,113 | 4,347 | 12,514 | |
| 1932 | D | 8,932 | 4,569 | 13,578 | |
| 1928 | R | 5,092 | 7,931 | 13,024 | |
| 1924 | D | 7,005 | 5,634 | 12,771 | |
| 1920 | D | 7,010 | 5,474 | 12,599 | |
| 1916 | D | 4,228 | 3,002 | 7,295 | |
| 1912 | D | 3,447 | 1,342 | 6,614 | |
| 1908 | D | 3,742 | 2,929 | 6,795 | |
| 1904 | D | 3,484 | 2,737 | 6,402 | |
| 1900 | D | 3,455 | 2,928 | 6,460 | |
| 1896 | D | 3,716 | 2,866 | 6,830 | |
| 1892 | D | 2,867 | 2,053 | 5,307 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Warren County anchors the Bowling Green metro and houses Western Kentucky University, but its growing suburban and exurban population has pushed presidential margins decisively rightward, hitting R+24.3 in 2024.
The Republican margin in Warren County reached its widest at thirty-five points in 1972. The margin in 2024 was twenty-four points, in line with the county's deep historical pattern.
Warren County's loyalty is rooted in its place. Median household income of $65,794, a 76% non-Hispanic-white share, and a population of 140,918 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 Glynn County and Otero County.
