| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 4,509 | 10,481 | 15,340 | |
| 2020 | R | 4,524 | 10,002 | 14,898 | |
| 2016 | R | 4,221 | 8,652 | 13,673 | |
| 2012 | R | 6,172 | 7,412 | 13,801 | |
| 2008 | D | 7,454 | 6,383 | 14,187 | |
| 2004 | R | 6,966 | 7,966 | 15,125 | |
| 2000 | R | 5,931 | 7,461 | 14,149 | |
| 1996 | D | 5,540 | 4,622 | 12,861 | |
| 1992 | D | 5,540 | 4,977 | 14,885 | |
| 1988 | D | 6,642 | 6,296 | 13,036 | |
| 1984 | R | 5,647 | 8,099 | 13,906 | |
| 1980 | R | 6,091 | 7,921 | 15,023 | |
| 1976 | D | 7,238 | 6,095 | 13,742 | |
| 1972 | R | 4,617 | 7,138 | 12,641 | |
| 1968 | R | 4,601 | 6,325 | 12,354 | |
| 1964 | D | 7,781 | 4,897 | 12,704 | |
| 1960 | R | 5,934 | 7,368 | 13,343 | |
| 1956 | R | 4,765 | 7,941 | 12,754 | |
| 1952 | R | 3,652 | 9,406 | 13,116 | |
| 1948 | R | 4,840 | 5,885 | 11,175 | |
| 1944 | R | 4,612 | 7,948 | 12,657 | |
| 1940 | R | 4,683 | 9,501 | 14,420 | |
| 1936 | D | 6,931 | 5,196 | 13,132 | |
| 1932 | D | 8,372 | 3,132 | 11,999 | |
| 1928 | R | 3,938 | 6,948 | 11,121 | |
| 1924 | R | 552 | 3,130 | 10,010 | |
| 1920 | R | 745 | 6,246 | 7,833 | |
| 1916 | R | 1,614 | 3,371 | 5,199 | |
| 1912 | R | 1,528 | 2,035 | 4,462 | |
| 1908 | R | 1,576 | 3,491 | 5,311 | |
| 1904 | R | 1,050 | 4,091 | 5,406 | |
| 1900 | R | 1,157 | 3,864 | 5,167 | |
| 1896 | R | 1,318 | 3,328 | 4,795 | |
| 1892 | R | 1,711 | 2,039 | 3,958 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Clark County's rural, agricultural character anchors it among Wisconsin's most reliably Republican counties, with the 2024 presidential margin of nearly 39 points placing it well outside the competitive range that defines most of the state.
The Republican margin in Clark County reached its widest at seventy points in 1920. The margin in 2024 was thirty-nine points, in line with the county's deep historical pattern.
Clark County's loyalty is rooted in its place. Median household income of $67,400, a 91% non-Hispanic-white share, and a population of 34,739 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 Oconto County.
