| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 5,027 | 18,182 | 23,512 | |
| 2020 | R | 5,055 | 17,964 | 23,368 | |
| 2016 | R | 4,647 | 15,957 | 22,019 | |
| 2012 | R | 7,062 | 13,633 | 21,462 | |
| 2008 | R | 7,936 | 13,848 | 22,283 | |
| 2004 | R | 6,825 | 14,471 | 21,398 | |
| 2000 | R | 5,945 | 11,849 | 18,455 | |
| 1996 | R | 6,397 | 8,325 | 17,145 | |
| 1992 | R | 4,889 | 9,364 | 18,787 | |
| 1988 | R | 4,484 | 11,099 | 15,697 | |
| 1984 | R | 3,645 | 12,230 | 15,979 | |
| 1980 | R | 4,319 | 9,727 | 14,994 | |
| 1976 | R | 5,949 | 9,092 | 15,402 | |
| 1972 | R | 3,786 | 10,938 | 15,380 | |
| 1968 | R | 4,889 | 8,362 | 14,899 | |
| 1964 | D | 8,484 | 6,683 | 15,167 | |
| 1960 | R | 5,279 | 11,311 | 16,590 | |
| 1956 | R | 4,226 | 11,229 | 15,455 | |
| 1952 | R | 4,793 | 11,084 | 15,877 | |
| 1948 | R | 5,149 | 8,118 | 13,305 | |
| 1944 | R | 4,944 | 9,882 | 14,826 | |
| 1940 | R | 6,351 | 9,861 | 16,212 | |
| 1936 | R | 7,353 | 8,363 | 15,905 | |
| 1932 | R | 6,678 | 7,469 | 14,352 | |
| 1928 | R | 2,858 | 9,602 | 12,531 | |
| 1924 | R | 3,176 | 7,186 | 11,774 | |
| 1920 | R | 4,904 | 8,521 | 13,481 | |
| 1916 | R | 3,483 | 4,345 | 7,929 | |
| 1912 | D | 2,727 | 1,977 | 7,304 | |
| 1908 | R | 3,186 | 4,756 | 8,138 | |
| 1904 | R | 1,939 | 4,994 | 7,216 | |
| 1900 | R | 2,951 | 4,806 | 7,959 | |
| 1896 | R | 3,125 | 4,722 | 7,928 | |
| 1892 | R | 2,332 | 3,796 | 6,562 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Logan County delivered a 56-point Republican presidential margin in 2024, reflecting the deep rural consolidation that has reshaped Ohio's small-county map over the past decade. Its population of roughly 46,000 is anchored by the small city of Bellefontaine.
The Republican margin in Logan County reached its widest at fifty-six points in 2024. The margin in 2024 was fifty-six points, in line with the county's deep historical pattern.
Logan County's loyalty is rooted in its place. Median household income of $71,551, a 92% non-Hispanic-white share, and a population of 46,089 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 Allegany County and Bradford County.