| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 5,100 | 16,272 | 21,646 | |
| 2020 | R | 4,955 | 15,742 | 21,075 | |
| 2016 | R | 3,901 | 13,614 | 18,507 | |
| 2012 | R | 5,357 | 11,342 | 17,094 | |
| 2008 | R | 6,390 | 11,326 | 17,984 | |
| 2004 | R | 5,437 | 12,019 | 17,571 | |
| 2000 | R | 4,617 | 9,635 | 14,772 | |
| 1996 | R | 4,961 | 7,382 | 14,425 | |
| 1992 | R | 4,868 | 7,823 | 16,543 | |
| 1988 | R | 4,807 | 9,471 | 14,350 | |
| 1984 | R | 4,060 | 10,532 | 14,644 | |
| 1980 | R | 4,273 | 8,770 | 13,849 | |
| 1976 | R | 5,795 | 8,417 | 14,405 | |
| 1972 | R | 3,733 | 10,028 | 13,918 | |
| 1968 | R | 3,488 | 9,298 | 13,863 | |
| 1964 | D | 7,415 | 7,064 | 14,495 | |
| 1960 | R | 4,076 | 11,082 | 15,173 | |
| 1956 | R | 3,280 | 10,827 | 14,113 | |
| 1952 | R | 3,006 | 11,203 | 14,244 | |
| 1948 | R | 2,986 | 10,016 | 13,002 | |
| 1944 | R | 3,248 | 10,381 | 13,708 | |
| 1940 | R | 4,434 | 11,645 | 16,122 | |
| 1936 | R | 5,442 | 12,567 | 18,108 | |
| 1932 | R | 3,004 | 9,583 | 12,778 | |
| 1928 | R | 1,688 | 11,774 | 13,498 | |
| 1924 | R | 1,271 | 8,452 | 10,406 | |
| 1920 | R | 1,258 | 9,718 | 11,669 | |
| 1916 | R | 2,294 | 5,347 | 8,052 | |
| 1912 | D | 1,901 | 1,895 | 8,458 | |
| 1908 | R | 2,321 | 6,947 | 9,746 | |
| 1904 | R | 1,541 | 7,410 | 9,342 | |
| 1900 | R | 2,638 | 7,458 | 10,502 | |
| 1896 | R | 2,828 | 7,922 | 11,092 | |
| 1892 | R | 2,921 | 6,706 | 10,353 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Tioga's heavily rural, timber-and-agriculture economy anchors one of north-central Pennsylvania's most consistent Republican strongholds, where the 2024 presidential margin exceeded 50 points and population has trended downward for decades.
The Democratic margin in Tioga County peaked at two points in 1964. By 1968 the county had flipped, voting Republican for the first time in many years. The 2024 margin was fifty-two points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Tioga County's median household income of $64,899 sits well below state and national norms, and 12% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country. The county's voting pattern over the last decade is most similar to that of Grayson County and Blair County.