| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,523 | 2,798 | 4,354 | |
| 2020 | R | 1,489 | 2,584 | 4,144 | |
| 2016 | R | 1,344 | 2,206 | 3,735 | |
| 2012 | D | 1,876 | 1,794 | 3,699 | |
| 2008 | D | 2,102 | 1,616 | 3,771 | |
| 2004 | D | 2,181 | 1,853 | 4,066 | |
| 2000 | D | 1,854 | 1,631 | 3,664 | |
| 1996 | D | 1,585 | 1,007 | 3,093 | |
| 1992 | D | 1,673 | 1,098 | 3,572 | |
| 1988 | D | 1,906 | 1,311 | 3,248 | |
| 1984 | D | 1,629 | 1,555 | 3,202 | |
| 1980 | D | 1,673 | 1,541 | 3,471 | |
| 1976 | D | 1,955 | 1,312 | 3,334 | |
| 1972 | R | 1,409 | 1,458 | 2,960 | |
| 1968 | R | 1,263 | 1,493 | 2,987 | |
| 1964 | D | 2,154 | 1,069 | 3,229 | |
| 1960 | D | 1,763 | 1,612 | 3,380 | |
| 1956 | R | 1,040 | 1,975 | 3,015 | |
| 1952 | R | 896 | 2,348 | 3,255 | |
| 1948 | D | 1,381 | 1,333 | 2,764 | |
| 1944 | R | 1,029 | 1,902 | 2,959 | |
| 1940 | R | 1,194 | 2,272 | 3,522 | |
| 1936 | D | 1,785 | 1,466 | 3,446 | |
| 1932 | D | 1,931 | 1,152 | 3,125 | |
| 1928 | R | 1,276 | 1,839 | 3,140 | |
| 1924 | R | 206 | 1,226 | 2,194 | |
| 1920 | R | 265 | 1,817 | 2,140 | |
| 1916 | R | 622 | 766 | 1,439 | |
| 1912 | R | 410 | 528 | 1,320 | |
| 1908 | R | 447 | 1,010 | 1,498 | |
| 1904 | R | 342 | 1,033 | 1,411 | |
| 1900 | R | 470 | 1,099 | 1,608 | |
| 1896 | R | 436 | 1,301 | 1,795 | |
| 1892 | R | 539 | 865 | 1,497 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Pepin, the least populous county in Wisconsin, delivered a 29-point Republican margin in 2024 despite a historically Democratic rural identity — a shift that mirrors broader realignment trends across small-town river communities along the Mississippi.
The 2016 election was the turning point, when the Republican candidate carried the county by twenty-three points. The 2024 margin was twenty-nine points, in line with the county's new direction.
The demographics suggest why. A population of 7,431, a 95% non-Hispanic-white share, and a median household income of $75,256 situate the county in the broader realignment patterns of recent cycles. The county's voting pattern over the last decade is most similar to that of Buffalo County and Swift County.
