| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 11,224 | 17,268 | 28,716 | |
| 2020 | R | 11,565 | 15,941 | 28,101 | |
| 2016 | R | 9,098 | 13,610 | 24,528 | |
| 2012 | D | 11,523 | 11,085 | 23,095 | |
| 2008 | D | 12,741 | 12,533 | 25,730 | |
| 2004 | R | 10,624 | 13,827 | 25,103 | |
| 2000 | R | 9,641 | 12,596 | 23,555 | |
| 1996 | D | 9,572 | 8,954 | 22,544 | |
| 1992 | R | 8,429 | 10,305 | 25,135 | |
| 1988 | R | 8,201 | 14,103 | 22,515 | |
| 1984 | R | 5,909 | 16,580 | 22,563 | |
| 1980 | R | 7,144 | 12,835 | 21,906 | |
| 1976 | R | 7,262 | 13,946 | 21,324 | |
| 1972 | R | 5,677 | 16,136 | 21,864 | |
| 1968 | R | 6,806 | 12,694 | 20,569 | |
| 1964 | D | 13,826 | 8,160 | 21,993 | |
| 1960 | R | 8,274 | 15,037 | 23,317 | |
| 1956 | R | 4,817 | 18,449 | 23,266 | |
| 1952 | R | 6,210 | 17,551 | 23,789 | |
| 1948 | R | 6,017 | 13,975 | 20,464 | |
| 1944 | R | 7,100 | 13,861 | 20,992 | |
| 1940 | R | 7,977 | 15,960 | 23,975 | |
| 1936 | R | 7,713 | 15,186 | 23,317 | |
| 1932 | R | 7,512 | 14,478 | 22,184 | |
| 1928 | R | 7,221 | 15,499 | 23,163 | |
| 1924 | R | 4,321 | 13,774 | 19,264 | |
| 1920 | R | 4,124 | 13,647 | 18,093 | |
| 1916 | R | 3,907 | 7,310 | 11,463 | |
| 1912 | R | 3,555 | 4,593 | 11,220 | |
| 1908 | R | 3,593 | 7,933 | 12,087 | |
| 1904 | R | 3,517 | 8,324 | 12,355 | |
| 1900 | R | 3,357 | 8,209 | 12,012 | |
| 1896 | R | 3,239 | 8,139 | 11,775 | |
| 1892 | R | 3,731 | 6,794 | 11,410 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Washington County, bordering Vermont along the Hudson Valley's northern reach, gave Republican presidential candidates a 21-point margin in 2024 — a striking swing from the competitive results it posted in the early 2000s.
The Republican margin in Washington County reached its widest at fifty-nine points in 1956. The margin in 2024 was twenty-one points, in line with the county's deep historical pattern.
Washington County's loyalty is rooted in its place. Median household income of $73,495, a 91% non-Hispanic-white share, and a population of 60,522 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 Madison County and Nottoway County.
