| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 7,415 | 16,670 | 24,415 | |
| 2020 | R | 7,366 | 15,304 | 22,979 | |
| 2016 | R | 6,409 | 13,122 | 20,343 | |
| 2012 | R | 9,882 | 10,619 | 20,777 | |
| 2008 | D | 11,195 | 9,726 | 21,255 | |
| 2004 | R | 10,190 | 11,866 | 22,270 | |
| 2000 | R | 8,676 | 10,535 | 19,921 | |
| 1996 | D | 8,413 | 7,231 | 18,216 | |
| 1992 | R | 7,626 | 7,984 | 21,093 | |
| 1988 | R | 8,030 | 9,637 | 17,764 | |
| 1984 | R | 6,798 | 11,444 | 18,353 | |
| 1980 | R | 7,718 | 10,444 | 19,167 | |
| 1976 | R | 8,482 | 8,591 | 17,425 | |
| 1972 | R | 5,900 | 8,740 | 15,238 | |
| 1968 | R | 6,415 | 7,134 | 14,790 | |
| 1964 | D | 9,657 | 5,332 | 15,013 | |
| 1960 | R | 7,408 | 8,205 | 15,630 | |
| 1956 | R | 5,113 | 8,874 | 14,060 | |
| 1952 | R | 5,727 | 9,313 | 15,087 | |
| 1948 | D | 6,468 | 5,869 | 12,565 | |
| 1944 | R | 6,483 | 7,159 | 13,712 | |
| 1940 | D | 7,703 | 7,688 | 15,483 | |
| 1936 | D | 8,884 | 4,938 | 14,272 | |
| 1932 | D | 6,508 | 5,249 | 12,185 | |
| 1928 | R | 4,781 | 6,516 | 11,424 | |
| 1924 | R | 571 | 4,911 | 8,981 | |
| 1920 | R | 1,314 | 6,138 | 8,124 | |
| 1916 | R | 2,205 | 2,767 | 5,209 | |
| 1912 | R | 1,559 | 1,618 | 4,683 | |
| 1908 | R | 1,597 | 3,454 | 5,444 | |
| 1904 | R | 816 | 3,977 | 5,145 | |
| 1900 | R | 1,535 | 4,237 | 5,969 | |
| 1896 | R | 1,867 | 4,277 | 6,266 | |
| 1892 | D | 1,994 | 1,837 | 4,285 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Marinette's heavily rural, timber-and-manufacturing economy along the Michigan border anchors a voting pattern that has shifted steadily rightward over two decades, landing at R+37.9 in 2024 — well above the state's competitive average.
The Democratic margin in Marinette County peaked at twenty-nine points in 1964. By 2012 the county had flipped, voting Republican for the first time in many years. The 2024 margin was thirty-eight points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Marinette County's median household income of $63,809 sits well below state and national norms, and 10% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country. The county's voting pattern over the last decade is most similar to that of Oconto County and Tuscarawas County.