| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 31,529 | 46,213 | 78,826 | |
| 2020 | R | 30,808 | 44,624 | 76,751 | |
| 2016 | R | 26,481 | 39,014 | 69,518 | |
| 2012 | R | 32,363 | 36,617 | 69,862 | |
| 2008 | D | 36,367 | 30,345 | 67,940 | |
| 2004 | R | 30,899 | 36,394 | 68,059 | |
| 2000 | R | 26,546 | 28,883 | 58,374 | |
| 1996 | D | 24,012 | 19,874 | 51,449 | |
| 1992 | D | 21,482 | 20,948 | 57,378 | |
| 1988 | D | 24,658 | 24,482 | 49,521 | |
| 1984 | R | 20,128 | 27,080 | 48,670 | |
| 1980 | R | 23,281 | 25,868 | 53,514 | |
| 1976 | D | 24,934 | 21,898 | 48,001 | |
| 1972 | R | 18,500 | 21,454 | 41,839 | |
| 1968 | D | 18,063 | 16,907 | 38,081 | |
| 1964 | D | 24,603 | 12,766 | 37,426 | |
| 1960 | R | 18,145 | 21,880 | 40,025 | |
| 1956 | R | 15,301 | 22,586 | 38,051 | |
| 1952 | R | 14,541 | 20,702 | 35,373 | |
| 1948 | D | 15,898 | 11,494 | 28,079 | |
| 1944 | R | 13,192 | 15,782 | 29,477 | |
| 1940 | R | 13,724 | 15,264 | 29,469 | |
| 1936 | D | 17,898 | 7,328 | 27,076 | |
| 1932 | D | 17,744 | 6,210 | 24,601 | |
| 1928 | D | 10,675 | 10,127 | 21,091 | |
| 1924 | R | 1,109 | 5,577 | 19,088 | |
| 1920 | R | 2,133 | 11,356 | 17,329 | |
| 1916 | R | 3,677 | 5,838 | 10,237 | |
| 1912 | D | 4,043 | 3,033 | 9,135 | |
| 1908 | R | 4,722 | 5,258 | 10,388 | |
| 1904 | R | 3,225 | 6,144 | 9,716 | |
| 1900 | R | 3,768 | 4,717 | 8,683 | |
| 1896 | R | 3,829 | 3,958 | 7,977 | |
| 1892 | D | 3,791 | 1,959 | 5,929 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Marathon County anchors north-central Wisconsin's paper and dairy economy, and its largely white working-class electorate has moved roughly 20 points toward Republican presidential candidates over the past two decades.
The Republican margin in Marathon County reached its widest at fifty-three points in 1920. The margin in 2024 was nineteen points, in line with the county's deep historical pattern.
Marathon County's loyalty is rooted in its place. Median household income of $77,884, a 87% non-Hispanic-white share, and a population of 138,403 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 Wood County and Kewaunee County.
