| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 5,239 | 14,664 | 20,081 | |
| 2020 | R | 4,910 | 13,983 | 19,140 | |
| 2016 | R | 4,002 | 11,725 | 16,486 | |
| 2012 | R | 4,687 | 10,073 | 15,068 | |
| 2008 | R | 5,382 | 9,900 | 15,479 | |
| 2004 | R | 4,348 | 10,566 | 14,983 | |
| 2000 | R | 3,536 | 8,963 | 12,841 | |
| 1996 | R | 3,405 | 6,742 | 11,642 | |
| 1992 | R | 2,952 | 6,934 | 12,596 | |
| 1988 | R | 2,658 | 9,054 | 11,779 | |
| 1984 | R | 2,383 | 8,968 | 11,391 | |
| 1980 | R | 2,418 | 7,634 | 10,591 | |
| 1976 | R | 3,097 | 6,557 | 9,929 | |
| 1972 | R | 1,834 | 7,308 | 9,345 | |
| 1968 | R | 1,993 | 6,784 | 9,469 | |
| 1964 | R | 4,199 | 5,195 | 9,416 | |
| 1960 | R | 1,998 | 8,103 | 10,117 | |
| 1956 | R | 1,959 | 7,102 | 9,064 | |
| 1952 | R | 1,686 | 6,836 | 8,545 | |
| 1948 | R | 1,490 | 5,181 | 6,671 | |
| 1944 | R | 1,795 | 5,696 | 7,514 | |
| 1940 | R | 2,478 | 5,722 | 8,214 | |
| 1936 | R | 2,999 | 5,550 | 8,598 | |
| 1932 | R | 2,176 | 3,423 | 5,766 | |
| 1928 | R | 805 | 5,693 | 6,527 | |
| 1924 | R | 970 | 3,055 | 4,243 | |
| 1920 | R | 964 | 2,751 | 3,810 | |
| 1916 | R | 1,247 | 1,797 | 3,112 | |
| 1912 | D | 991 | 626 | 3,330 | |
| 1908 | R | 1,081 | 2,401 | 3,562 | |
| 1904 | R | 972 | 2,538 | 3,547 | |
| 1900 | R | 1,319 | 2,517 | 3,881 | |
| 1896 | R | 1,351 | 2,572 | 3,978 | |
| 1892 | R | 1,511 | 2,307 | 3,850 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Snyder County, anchored by Selinsgrove in the central Susquehanna Valley, recorded a nearly 47-point Republican presidential margin in 2024—among the widest in a state defined by its competitive statewide races.
The Republican margin in Snyder County reached its widest at seventy-five points in 1928. The margin in 2024 was forty-seven points, in line with the county's deep historical pattern.
Snyder County's loyalty is rooted in its place. Median household income of $66,876, a 95% non-Hispanic-white share, and a population of 39,668 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 Shenandoah County and Geauga County.
