| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 5,290 | 10,582 | 16,073 | |
| 2020 | R | 5,166 | 9,670 | 15,018 | |
| 2016 | R | 4,287 | 8,141 | 13,096 | |
| 2012 | R | 6,198 | 6,701 | 13,077 | |
| 2008 | D | 7,082 | 6,727 | 14,051 | |
| 2004 | R | 6,810 | 7,364 | 14,359 | |
| 2000 | D | 6,433 | 6,190 | 12,928 | |
| 1996 | D | 6,092 | 4,135 | 11,834 | |
| 1992 | D | 5,243 | 4,170 | 12,007 | |
| 1988 | R | 4,394 | 5,866 | 10,303 | |
| 1984 | R | 3,359 | 6,419 | 9,823 | |
| 1980 | R | 3,763 | 5,280 | 9,659 | |
| 1976 | R | 3,691 | 4,608 | 8,401 | |
| 1972 | R | 2,187 | 4,136 | 6,445 | |
| 1968 | R | 1,639 | 2,635 | 4,713 | |
| 1964 | D | 2,345 | 1,722 | 4,074 | |
| 1960 | R | 1,226 | 2,731 | 3,962 | |
| 1956 | R | 827 | 2,674 | 3,509 | |
| 1952 | R | 676 | 2,547 | 3,239 | |
| 1948 | R | 687 | 2,055 | 2,781 | |
| 1944 | R | 484 | 1,292 | 1,789 | |
| 1940 | R | 739 | 1,360 | 2,118 | |
| 1936 | R | 782 | 836 | 1,684 | |
| 1932 | D | 757 | 601 | 1,410 | |
| 1928 | R | 236 | 780 | 1,023 | |
| 1924 | R | 99 | 484 | 695 | |
| 1920 | R | 182 | 652 | 866 | |
| 1916 | R | 239 | 311 | 582 | |
| 1912 | D | 150 | 134 | 593 | |
| 1908 | R | 147 | 427 | 615 | |
| 1904 | R | 116 | 373 | 522 | |
| 1900 | R | 175 | 327 | 507 | |
| 1896 | R | 141 | 282 | 431 | |
| 1892 | D | 286 | 239 | 540 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Roscommon sits in Michigan's northern Lower Peninsula, a sparsely populated resort and retirement area where the 2024 presidential margin reached nearly 33 points — among the wider gaps recorded in the state's rural interior.
The Republican margin in Roscommon County reached its widest at fifty-eight points in 1952. The margin in 2024 was thirty-three points, in line with the county's deep historical pattern.
Roscommon County's loyalty is rooted in its place. Median household income of $55,246, a 93% non-Hispanic-white share, and a population of 23,737 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 Clare County and Monroe County.
