| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 10,874 | 28,147 | 39,394 | |
| 2020 | R | 11,971 | 27,867 | 40,465 | |
| 2016 | R | 11,123 | 24,056 | 37,708 | |
| 2012 | R | 17,002 | 19,264 | 37,603 | |
| 2008 | R | 17,730 | 20,549 | 39,225 | |
| 2004 | R | 16,421 | 22,254 | 38,866 | |
| 2000 | R | 13,415 | 17,995 | 32,624 | |
| 1996 | R | 13,813 | 13,861 | 32,972 | |
| 1992 | R | 11,670 | 14,168 | 34,720 | |
| 1988 | R | 11,691 | 19,736 | 31,674 | |
| 1984 | R | 10,037 | 21,821 | 32,101 | |
| 1980 | R | 12,584 | 17,921 | 32,688 | |
| 1976 | R | 14,178 | 15,358 | 30,070 | |
| 1972 | R | 10,313 | 19,897 | 31,094 | |
| 1968 | R | 13,089 | 15,260 | 31,705 | |
| 1964 | D | 20,792 | 11,635 | 32,427 | |
| 1960 | R | 13,254 | 21,518 | 34,772 | |
| 1956 | R | 10,110 | 22,788 | 32,898 | |
| 1952 | R | 12,490 | 21,244 | 33,734 | |
| 1948 | R | 12,765 | 16,049 | 28,895 | |
| 1944 | R | 12,729 | 17,577 | 30,306 | |
| 1940 | R | 15,753 | 19,395 | 35,148 | |
| 1936 | D | 16,265 | 15,454 | 32,573 | |
| 1932 | R | 13,378 | 16,366 | 30,285 | |
| 1928 | R | 6,507 | 22,120 | 28,798 | |
| 1924 | R | 6,709 | 15,571 | 23,697 | |
| 1920 | R | 9,437 | 13,862 | 23,671 | |
| 1916 | R | 6,328 | 7,597 | 14,502 | |
| 1912 | D | 5,376 | 4,134 | 13,973 | |
| 1908 | R | 6,576 | 8,080 | 15,431 | |
| 1904 | R | 5,511 | 7,597 | 13,928 | |
| 1900 | R | 6,667 | 7,365 | 14,414 | |
| 1896 | R | 6,871 | 7,245 | 14,299 | |
| 1892 | D | 6,230 | 6,123 | 12,814 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Muskingum County, anchored by Zanesville at the confluence of the Muskingum and Licking rivers, has shifted decisively rightward over two decades — its R+43.9 margin in 2024 places it among Ohio's most lopsided presidential results.
The Republican margin in Muskingum County reached its widest at fifty-four points in 1928. The margin in 2024 was forty-four points, in line with the county's deep historical pattern.
Muskingum County's loyalty is rooted in its place. Median household income of $60,780, a 91% non-Hispanic-white share, and a population of 86,411 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 Marion County and Morgan County.
