| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,210 | 5,593 | 6,900 | |
| 2020 | R | 1,322 | 5,515 | 6,925 | |
| 2016 | R | 1,164 | 4,604 | 6,007 | |
| 2012 | R | 1,859 | 3,556 | 5,534 | |
| 2008 | R | 2,027 | 3,676 | 5,802 | |
| 2004 | R | 1,940 | 4,045 | 6,025 | |
| 2000 | R | 1,670 | 3,044 | 4,803 | |
| 1996 | R | 1,926 | 2,177 | 4,612 | |
| 1992 | R | 1,740 | 1,810 | 4,669 | |
| 1988 | R | 1,576 | 2,487 | 4,091 | |
| 1984 | R | 1,529 | 2,767 | 4,340 | |
| 1980 | D | 1,992 | 1,757 | 3,866 | |
| 1976 | D | 2,147 | 1,230 | 3,427 | |
| 1972 | R | 909 | 1,966 | 2,922 | |
| 1968 | R | 1,156 | 1,614 | 3,533 | |
| 1964 | D | 2,495 | 1,313 | 3,815 | |
| 1960 | R | 1,497 | 2,387 | 3,884 | |
| 1956 | R | 1,889 | 2,273 | 4,174 | |
| 1952 | D | 1,993 | 1,895 | 3,892 | |
| 1948 | D | 1,958 | 1,373 | 3,374 | |
| 1944 | D | 2,096 | 1,977 | 4,090 | |
| 1940 | D | 2,165 | 2,029 | 4,208 | |
| 1936 | D | 2,432 | 1,837 | 4,311 | |
| 1932 | D | 2,745 | 1,812 | 4,620 | |
| 1928 | R | 1,567 | 3,196 | 4,768 | |
| 1924 | R | 2,028 | 2,148 | 4,321 | |
| 1920 | D | 2,598 | 2,105 | 4,752 | |
| 1916 | D | 1,728 | 1,206 | 2,973 | |
| 1912 | D | 1,310 | 746 | 2,501 | |
| 1908 | D | 1,543 | 1,177 | 2,820 | |
| 1904 | D | 1,421 | 1,246 | 2,799 | |
| 1900 | D | 1,862 | 1,580 | 3,490 | |
| 1896 | D | 1,939 | 1,585 | 3,593 | |
| 1892 | D | 1,419 | 1,014 | 3,170 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
This small county of roughly 14,000 residents in northern Kentucky delivered a 63-point Republican presidential margin in 2024, placing it among the state's most one-sided jurisdictions despite sitting just across the Ohio River from competitive Cincinnati suburbs.
The Republican margin in Pendleton County reached its widest at sixty-four points in 2024. The margin in 2024 was sixty-four points, in line with the county's deep historical pattern.
Pendleton County's loyalty is rooted in its place. Median household income of $64,669, a 93% non-Hispanic-white share, and a population of 14,723 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 Grant County and Breckinridge County.