| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 3,905 | 10,873 | 14,975 | |
| 2020 | R | 4,062 | 10,479 | 14,764 | |
| 2016 | R | 3,756 | 9,301 | 14,216 | |
| 2012 | R | 5,658 | 8,257 | 14,395 | |
| 2008 | R | 6,320 | 8,239 | 14,852 | |
| 2004 | R | 5,111 | 9,902 | 15,105 | |
| 2000 | R | 4,367 | 8,530 | 13,252 | |
| 1996 | R | 4,762 | 6,385 | 12,785 | |
| 1992 | R | 3,933 | 6,196 | 13,359 | |
| 1988 | R | 3,764 | 8,618 | 12,468 | |
| 1984 | R | 2,779 | 9,317 | 12,173 | |
| 1980 | R | 3,059 | 7,584 | 11,489 | |
| 1976 | R | 4,592 | 7,656 | 12,470 | |
| 1972 | R | 3,145 | 8,099 | 11,475 | |
| 1968 | R | 3,256 | 6,970 | 11,026 | |
| 1964 | D | 5,845 | 5,094 | 10,939 | |
| 1960 | R | 3,415 | 8,251 | 11,666 | |
| 1956 | R | 2,775 | 8,164 | 10,939 | |
| 1952 | R | 3,010 | 8,029 | 11,039 | |
| 1948 | R | 3,689 | 5,024 | 8,724 | |
| 1944 | R | 2,605 | 7,241 | 9,846 | |
| 1940 | R | 3,508 | 7,784 | 11,292 | |
| 1936 | D | 5,472 | 4,108 | 10,668 | |
| 1932 | D | 6,987 | 3,067 | 10,188 | |
| 1928 | R | 3,647 | 5,370 | 9,057 | |
| 1924 | R | 2,922 | 3,855 | 8,470 | |
| 1920 | R | 2,829 | 5,738 | 8,681 | |
| 1916 | D | 3,252 | 2,482 | 5,863 | |
| 1912 | D | 2,994 | 804 | 5,234 | |
| 1908 | D | 3,817 | 2,425 | 6,413 | |
| 1904 | D | 3,102 | 2,707 | 5,904 | |
| 1900 | D | 4,157 | 2,623 | 6,840 | |
| 1896 | D | 4,323 | 2,558 | 6,931 | |
| 1892 | D | 3,312 | 1,981 | 5,583 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Henry County's flat, agricultural landscape in northwest Ohio anchors a voting pattern that delivered a 47-point Republican margin in 2024, among the widest gaps recorded in the state that cycle.
The Republican margin in Henry County reached its widest at fifty-four points in 1984. The margin in 2024 was forty-seven points, in line with the county's deep historical pattern.
Henry County's loyalty is rooted in its place. Median household income of $80,099, a 90% non-Hispanic-white share, and a population of 27,567 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 Fulton County and Williams County.
