| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 34,400 | 27,728 | 63,177 | |
| 2020 | D | 31,620 | 25,341 | 58,275 | |
| 2016 | D | 27,340 | 23,331 | 55,025 | |
| 2012 | D | 30,666 | 23,256 | 54,806 | |
| 2008 | D | 33,146 | 20,959 | 55,010 | |
| 2004 | D | 30,068 | 24,653 | 55,437 | |
| 2000 | D | 24,078 | 20,921 | 47,875 | |
| 1996 | D | 20,298 | 13,900 | 40,390 | |
| 1992 | D | 21,221 | 15,915 | 47,076 | |
| 1988 | D | 21,150 | 17,664 | 39,023 | |
| 1984 | R | 19,347 | 20,401 | 39,929 | |
| 1980 | D | 17,602 | 17,304 | 38,922 | |
| 1976 | D | 18,263 | 16,388 | 35,353 | |
| 1972 | R | 14,300 | 15,883 | 30,943 | |
| 1968 | D | 12,302 | 11,799 | 25,287 | |
| 1964 | D | 15,775 | 8,700 | 24,521 | |
| 1960 | R | 11,240 | 14,427 | 25,704 | |
| 1956 | R | 9,276 | 13,122 | 22,439 | |
| 1952 | R | 9,554 | 14,069 | 23,658 | |
| 1948 | D | 9,971 | 7,825 | 18,042 | |
| 1944 | R | 8,962 | 9,470 | 18,520 | |
| 1940 | D | 10,129 | 9,595 | 19,832 | |
| 1936 | D | 10,065 | 6,802 | 17,260 | |
| 1932 | D | 7,565 | 7,487 | 15,343 | |
| 1928 | R | 4,385 | 10,079 | 14,555 | |
| 1924 | R | 629 | 5,149 | 11,083 | |
| 1920 | R | 1,193 | 7,856 | 9,625 | |
| 1916 | R | 2,290 | 2,922 | 5,513 | |
| 1912 | R | 1,727 | 2,013 | 4,996 | |
| 1908 | R | 1,859 | 3,981 | 6,172 | |
| 1904 | R | 1,224 | 4,343 | 5,943 | |
| 1900 | R | 1,967 | 4,378 | 6,589 | |
| 1896 | R | 2,364 | 4,522 | 7,130 | |
| 1892 | R | 2,383 | 2,719 | 5,688 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Home to UW–Eau Claire, this west-central Wisconsin county backed the Democratic presidential candidate by roughly 11 points in 2024, standing out in a region where many neighboring counties trend considerably more Republican.
The Democratic margin in Eau Claire County reached its widest at twenty-nine points in 1964. The margin in 2024 was eleven points — still decisive.
Eau Claire County's loyalty is rooted in its place. Median household income of $74,546, a 88% non-Hispanic-white share, and a population of 107,116 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 Linn County and Lincoln County.
