| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 4,944 | 15,334 | 20,564 | |
| 2020 | R | 5,062 | 14,589 | 19,972 | |
| 2016 | R | 4,594 | 12,631 | 18,548 | |
| 2012 | R | 7,044 | 11,045 | 18,669 | |
| 2008 | R | 7,385 | 11,141 | 18,936 | |
| 2004 | R | 6,968 | 11,718 | 18,776 | |
| 2000 | R | 5,955 | 9,220 | 15,680 | |
| 1996 | R | 5,990 | 6,568 | 14,893 | |
| 1992 | R | 5,201 | 7,004 | 16,252 | |
| 1988 | R | 4,272 | 8,995 | 13,368 | |
| 1984 | R | 3,544 | 9,935 | 13,600 | |
| 1980 | R | 4,109 | 7,356 | 12,225 | |
| 1976 | R | 4,748 | 6,526 | 11,502 | |
| 1972 | R | 3,626 | 8,756 | 12,603 | |
| 1968 | R | 4,264 | 6,863 | 12,750 | |
| 1964 | D | 7,138 | 5,588 | 12,726 | |
| 1960 | R | 4,560 | 9,141 | 13,701 | |
| 1956 | R | 3,851 | 8,767 | 12,618 | |
| 1952 | R | 4,563 | 8,880 | 13,443 | |
| 1948 | R | 4,585 | 6,492 | 11,100 | |
| 1944 | R | 4,800 | 7,795 | 12,595 | |
| 1940 | R | 5,929 | 7,841 | 13,770 | |
| 1936 | R | 6,485 | 6,872 | 13,719 | |
| 1932 | D | 6,396 | 6,191 | 12,712 | |
| 1928 | R | 3,296 | 7,651 | 11,006 | |
| 1924 | R | 3,575 | 6,181 | 10,245 | |
| 1920 | R | 4,775 | 7,285 | 12,128 | |
| 1916 | R | 3,338 | 3,695 | 7,133 | |
| 1912 | D | 2,763 | 2,392 | 6,818 | |
| 1908 | R | 3,160 | 4,153 | 7,457 | |
| 1904 | R | 2,336 | 4,192 | 6,763 | |
| 1900 | R | 3,192 | 4,306 | 7,646 | |
| 1896 | R | 3,432 | 4,314 | 7,825 | |
| 1892 | R | 2,791 | 3,708 | 6,871 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Champaign County's small-city core of Urbana anchors a largely agricultural landscape where the 2024 presidential margin exceeded 50 points, placing it among Ohio's most one-sided counties in recent cycles.
The Republican margin in Champaign County reached its widest at fifty-one points in 2024. The margin in 2024 was fifty-one points, in line with the county's deep historical pattern.
Champaign County's loyalty is rooted in its place. Median household income of $75,556, a 92% non-Hispanic-white share, and a population of 38,804 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 Crawford County and Morrow County.
