| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 23,956 | 31,553 | 56,014 | |
| 2020 | R | 24,955 | 29,283 | 54,991 | |
| 2016 | R | 19,366 | 27,024 | 48,563 | |
| 2012 | R | 19,512 | 24,083 | 44,345 | |
| 2008 | R | 21,613 | 25,145 | 47,244 | |
| 2004 | R | 19,575 | 26,356 | 46,571 | |
| 2000 | R | 18,525 | 21,853 | 42,554 | |
| 1996 | R | 16,173 | 17,452 | 38,432 | |
| 1992 | R | 14,048 | 18,934 | 41,263 | |
| 1988 | R | 12,158 | 24,086 | 36,500 | |
| 1984 | R | 9,473 | 25,707 | 35,277 | |
| 1980 | R | 8,691 | 20,193 | 31,819 | |
| 1976 | R | 11,963 | 18,523 | 30,711 | |
| 1972 | R | 7,747 | 21,673 | 29,497 | |
| 1968 | R | 8,472 | 13,293 | 24,314 | |
| 1964 | D | 12,636 | 9,219 | 21,879 | |
| 1960 | R | 8,013 | 11,946 | 19,987 | |
| 1956 | R | 4,694 | 12,898 | 17,592 | |
| 1952 | R | 5,001 | 11,038 | 16,118 | |
| 1948 | R | 4,012 | 8,222 | 12,877 | |
| 1944 | R | 4,251 | 7,010 | 11,294 | |
| 1940 | R | 4,794 | 7,164 | 11,997 | |
| 1936 | R | 4,682 | 5,761 | 10,633 | |
| 1932 | R | 3,730 | 4,633 | 8,512 | |
| 1928 | R | 2,278 | 4,534 | 6,981 | |
| 1924 | R | 1,472 | 3,796 | 5,605 | |
| 1920 | R | 1,405 | 3,447 | 4,911 | |
| 1916 | R | 1,290 | 1,717 | 3,030 | |
| 1912 | D | 1,321 | 1,267 | 3,212 | |
| 1908 | R | 1,369 | 2,275 | 3,748 | |
| 1904 | R | 1,395 | 2,316 | 3,770 | |
| 1900 | R | 1,345 | 2,219 | 3,631 | |
| 1896 | R | 1,027 | 2,364 | 3,495 | |
| 1892 | R | 1,549 | 1,846 | 3,609 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Putnam County sits between New York City's northern suburbs and the rural Catskills corridor, drawing commuter households whose voting patterns have shifted the county from competitive to reliably Republican-leaning, with the 2024 margin reaching R+13.6.
The Republican margin in Putnam County reached its widest at forty-seven points in 1972. The margin in 2024 was fourteen points, in line with the county's deep historical pattern.
Putnam County's loyalty is rooted in its place. Median household income of $126,257, a 75% non-Hispanic-white share, and a population of 98,107 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 Brevard County and Polk County.