| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 9,437 | 15,038 | 24,559 | |
| 2020 | R | 9,634 | 14,791 | 25,036 | |
| 2016 | R | 7,526 | 13,260 | 22,299 | |
| 2012 | R | 8,930 | 12,117 | 21,589 | |
| 2008 | R | 10,172 | 12,536 | 23,131 | |
| 2004 | R | 9,694 | 13,762 | 23,902 | |
| 2000 | R | 9,170 | 12,239 | 22,457 | |
| 1996 | R | 8,769 | 9,416 | 21,282 | |
| 1992 | R | 7,791 | 9,287 | 23,065 | |
| 1988 | R | 8,102 | 12,670 | 20,946 | |
| 1984 | R | 5,860 | 14,856 | 20,817 | |
| 1980 | R | 6,690 | 10,291 | 19,214 | |
| 1976 | R | 6,969 | 11,824 | 18,893 | |
| 1972 | R | 5,470 | 13,396 | 18,910 | |
| 1968 | R | 5,336 | 10,441 | 16,956 | |
| 1964 | D | 10,411 | 7,147 | 17,567 | |
| 1960 | R | 4,855 | 12,572 | 17,431 | |
| 1956 | R | 3,188 | 11,958 | 15,146 | |
| 1952 | R | 3,259 | 11,799 | 15,095 | |
| 1948 | R | 3,385 | 8,673 | 12,362 | |
| 1944 | R | 3,831 | 8,934 | 12,790 | |
| 1940 | R | 4,081 | 9,618 | 13,758 | |
| 1936 | R | 4,305 | 9,163 | 13,640 | |
| 1932 | R | 4,067 | 8,047 | 12,328 | |
| 1928 | R | 2,779 | 9,963 | 12,958 | |
| 1924 | R | 2,234 | 7,834 | 10,810 | |
| 1920 | R | 2,406 | 6,772 | 9,511 | |
| 1916 | R | 2,748 | 3,376 | 6,396 | |
| 1912 | R | 2,400 | 2,642 | 6,432 | |
| 1908 | R | 2,706 | 4,247 | 7,254 | |
| 1904 | R | 2,840 | 4,628 | 7,714 | |
| 1900 | R | 3,037 | 4,747 | 8,034 | |
| 1896 | R | 2,824 | 4,849 | 7,941 | |
| 1892 | R | 2,923 | 4,221 | 7,708 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Tioga's economy is rooted in agriculture and small manufacturing, and its presidential margins have moved roughly 20 points toward Republicans since 2000, tracking a broader realignment across rural upstate New York.
The Republican margin in Tioga County reached its widest at fifty-eight points in 1956. The margin in 2024 was twenty-three points, in line with the county's deep historical pattern.
Tioga County's loyalty is rooted in its place. Median household income of $72,739, a 94% non-Hispanic-white share, and a population of 47,864 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 Berkeley County and Caroline County.
