| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 6,093 | 16,114 | 22,471 | |
| 2020 | R | 6,236 | 15,207 | 21,752 | |
| 2016 | R | 5,123 | 12,891 | 19,043 | |
| 2012 | R | 6,935 | 10,800 | 18,116 | |
| 2008 | R | 8,381 | 10,633 | 19,286 | |
| 2004 | R | 7,351 | 11,573 | 19,040 | |
| 2000 | R | 6,481 | 10,226 | 17,271 | |
| 1996 | R | 5,912 | 7,354 | 15,636 | |
| 1992 | R | 5,368 | 7,356 | 16,709 | |
| 1988 | R | 4,871 | 9,077 | 14,056 | |
| 1984 | R | 4,471 | 10,566 | 15,104 | |
| 1980 | R | 4,660 | 8,994 | 14,689 | |
| 1976 | R | 6,075 | 8,331 | 14,682 | |
| 1972 | R | 4,154 | 9,476 | 13,979 | |
| 1968 | R | 4,364 | 8,705 | 14,032 | |
| 1964 | D | 7,838 | 6,567 | 14,417 | |
| 1960 | R | 5,760 | 10,201 | 15,970 | |
| 1956 | R | 4,293 | 10,752 | 15,055 | |
| 1952 | R | 3,653 | 10,529 | 14,234 | |
| 1948 | R | 3,621 | 7,945 | 11,716 | |
| 1944 | R | 4,212 | 8,819 | 13,080 | |
| 1940 | R | 5,383 | 9,520 | 14,942 | |
| 1936 | R | 6,520 | 9,745 | 16,534 | |
| 1932 | R | 5,171 | 6,884 | 12,295 | |
| 1928 | R | 4,353 | 9,445 | 13,861 | |
| 1924 | R | 2,208 | 7,266 | 10,784 | |
| 1920 | R | 2,905 | 6,572 | 9,896 | |
| 1916 | R | 3,145 | 3,891 | 7,330 | |
| 1912 | D | 2,588 | 1,988 | 7,398 | |
| 1908 | R | 3,230 | 4,999 | 8,725 | |
| 1904 | R | 2,573 | 4,988 | 8,150 | |
| 1900 | R | 3,527 | 5,019 | 9,085 | |
| 1896 | R | 3,618 | 5,310 | 9,360 | |
| 1892 | R | 3,383 | 4,531 | 8,527 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Susquehanna County, anchored by dairy farms and natural-gas country along the New York border, has swung steadily rightward over two decades, posting a 44.7-point Republican presidential margin in 2024 that places it among Pennsylvania's most lopsided counties.
The Republican margin in Susquehanna County reached its widest at forty-eight points in 1952. The margin in 2024 was forty-five points, in line with the county's deep historical pattern.
Susquehanna County's loyalty is rooted in its place. Median household income of $68,487, a 95% non-Hispanic-white share, and a population of 38,219 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 Hillsdale County and Page County.