| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 6,967 | 17,675 | 24,912 | |
| 2020 | R | 6,715 | 16,226 | 23,215 | |
| 2016 | R | 5,940 | 13,345 | 20,206 | |
| 2012 | R | 8,865 | 10,741 | 19,859 | |
| 2008 | D | 9,927 | 8,755 | 18,968 | |
| 2004 | R | 8,534 | 11,043 | 19,794 | |
| 2000 | R | 7,260 | 8,706 | 16,596 | |
| 1996 | D | 6,723 | 5,389 | 13,885 | |
| 1992 | D | 5,898 | 5,720 | 16,073 | |
| 1988 | R | 6,549 | 7,084 | 13,716 | |
| 1984 | R | 5,289 | 8,714 | 14,124 | |
| 1980 | R | 5,352 | 8,292 | 14,293 | |
| 1976 | D | 6,541 | 6,232 | 13,027 | |
| 1972 | R | 4,041 | 6,511 | 10,965 | |
| 1968 | R | 3,737 | 5,680 | 10,569 | |
| 1964 | D | 6,360 | 4,420 | 10,795 | |
| 1960 | R | 5,045 | 6,223 | 11,283 | |
| 1956 | R | 3,632 | 6,836 | 10,525 | |
| 1952 | R | 3,382 | 7,807 | 11,220 | |
| 1948 | R | 4,269 | 4,865 | 9,247 | |
| 1944 | R | 4,348 | 5,923 | 10,322 | |
| 1940 | R | 5,273 | 6,238 | 11,577 | |
| 1936 | D | 6,729 | 3,774 | 11,034 | |
| 1932 | D | 6,440 | 2,915 | 9,465 | |
| 1928 | R | 4,253 | 4,661 | 8,979 | |
| 1924 | R | 602 | 2,562 | 7,735 | |
| 1920 | R | 1,030 | 4,735 | 6,058 | |
| 1916 | R | 1,892 | 2,570 | 4,572 | |
| 1912 | R | 1,523 | 1,988 | 4,266 | |
| 1908 | R | 1,453 | 3,020 | 4,663 | |
| 1904 | R | 1,024 | 3,279 | 4,449 | |
| 1900 | R | 1,117 | 2,754 | 3,950 | |
| 1896 | R | 1,290 | 2,836 | 4,228 | |
| 1892 | D | 1,499 | 1,275 | 2,944 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Oconto County, hugging the western shore of Green Bay, has shifted decisively rightward over the past two decades. Its 2024 presidential margin of R+43 places it among the most lopsided counties in a state routinely decided by fewer than two points statewide.
The Republican margin in Oconto County reached its widest at sixty-one points in 1920. The margin in 2024 was forty-three points, in line with the county's deep historical pattern.
Oconto County's loyalty is rooted in its place. Median household income of $75,049, a 94% non-Hispanic-white share, and a population of 39,589 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 Elk County and Tuscarawas County.
