| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 57,974 | 39,743 | 99,172 | |
| 2020 | D | 57,970 | 37,590 | 97,420 | |
| 2016 | D | 44,597 | 35,239 | 85,290 | |
| 2012 | D | 47,752 | 29,759 | 79,626 | |
| 2008 | D | 54,320 | 33,300 | 89,149 | |
| 2004 | D | 47,602 | 37,821 | 87,712 | |
| 2000 | D | 38,162 | 33,447 | 78,237 | |
| 1996 | D | 35,852 | 26,212 | 73,851 | |
| 1992 | D | 32,886 | 29,223 | 80,821 | |
| 1988 | R | 30,744 | 41,173 | 72,557 | |
| 1984 | R | 26,445 | 47,372 | 74,102 | |
| 1980 | R | 22,179 | 36,709 | 66,726 | |
| 1976 | R | 30,190 | 35,353 | 66,153 | |
| 1972 | R | 21,371 | 46,883 | 68,433 | |
| 1968 | R | 20,886 | 34,798 | 60,387 | |
| 1964 | D | 35,486 | 23,749 | 59,326 | |
| 1960 | R | 23,017 | 36,418 | 59,502 | |
| 1956 | R | 13,321 | 43,034 | 56,355 | |
| 1952 | R | 15,733 | 36,141 | 52,085 | |
| 1948 | R | 14,441 | 28,941 | 45,012 | |
| 1944 | R | 16,943 | 26,703 | 43,763 | |
| 1940 | R | 20,403 | 27,186 | 47,696 | |
| 1936 | R | 19,118 | 24,678 | 44,611 | |
| 1932 | R | 18,092 | 21,002 | 39,721 | |
| 1928 | R | 14,200 | 25,418 | 40,695 | |
| 1924 | R | 9,361 | 20,048 | 31,660 | |
| 1920 | R | 8,759 | 19,001 | 28,612 | |
| 1916 | R | 7,807 | 10,734 | 18,971 | |
| 1912 | D | 8,510 | 7,485 | 19,526 | |
| 1908 | R | 8,560 | 10,475 | 19,740 | |
| 1904 | R | 9,516 | 11,356 | 21,373 | |
| 1900 | R | 9,349 | 11,348 | 21,141 | |
| 1896 | R | 8,140 | 11,100 | 19,711 | |
| 1892 | D | 9,808 | 9,450 | 20,415 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Ulster sits at the intersection of Catskill foothills and the Hudson River corridor, drawing a mix of longtime agricultural residents and transplants from New York City. That demographic shift has coincided with a sustained Democratic lean in presidential contests.
The Democratic margin in Ulster County reached its widest at twenty-four points in 2008. The margin in 2024 was eighteen points — still decisive.
Ulster County's loyalty is rooted in its place. Median household income of $86,271, a 75% non-Hispanic-white share, and a population of 182,601 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 Knox County and Grafton County.
