| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 58,617 | 23,256 | 84,720 | |
| 2020 | D | 63,362 | 22,281 | 88,332 | |
| 2016 | D | 55,367 | 21,790 | 85,624 | |
| 2012 | D | 57,359 | 21,480 | 81,621 | |
| 2008 | D | 56,869 | 20,618 | 79,570 | |
| 2004 | D | 51,680 | 21,315 | 74,422 | |
| 2000 | D | 38,543 | 19,202 | 68,626 | |
| 1996 | D | 41,844 | 14,787 | 65,309 | |
| 1992 | D | 37,879 | 15,694 | 70,071 | |
| 1988 | D | 39,834 | 24,331 | 64,915 | |
| 1984 | D | 35,597 | 28,111 | 63,942 | |
| 1980 | D | 27,611 | 21,117 | 60,355 | |
| 1976 | D | 34,947 | 22,219 | 60,075 | |
| 1972 | D | 28,572 | 24,529 | 53,654 | |
| 1968 | D | 26,666 | 16,270 | 45,412 | |
| 1964 | D | 32,058 | 11,385 | 43,645 | |
| 1960 | D | 25,667 | 19,346 | 45,096 | |
| 1956 | R | 16,119 | 26,361 | 42,564 | |
| 1952 | R | 17,247 | 24,141 | 41,486 | |
| 1948 | D | 18,012 | 17,331 | 35,833 | |
| 1944 | D | 17,676 | 14,907 | 32,680 | |
| 1940 | D | 17,823 | 15,651 | 33,715 | |
| 1936 | D | 15,412 | 14,012 | 30,906 | |
| 1932 | R | 12,332 | 13,241 | 26,869 | |
| 1928 | R | 12,695 | 14,101 | 27,051 | |
| 1924 | R | 5,037 | 13,918 | 21,014 | |
| 1920 | R | 5,305 | 13,174 | 18,793 | |
| 1916 | R | 4,202 | 5,748 | 10,236 | |
| 1912 | R | 3,088 | 4,512 | 9,632 | |
| 1908 | R | 2,612 | 5,362 | 8,795 | |
| 1904 | R | 2,292 | 5,892 | 8,633 | |
| 1900 | R | 2,392 | 5,550 | 8,319 | |
| 1896 | R | 1,608 | 6,434 | 8,423 | |
| 1892 | R | 3,678 | 4,887 | 8,949 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
With UMass Amherst and four neighboring colleges anchoring its population, Hampshire County produces some of the widest Democratic presidential margins in Massachusetts, reaching D+41.7 in 2024.
The Democratic margin in Hampshire County peaked at forty-seven points in 1964. By 1960 the county had flipped, voting Republican for the first time in many years. The 2024 margin was forty-two points, the most Democratic-leaning result in the county's modern history.
The economic context is the key. Hampshire County's median household income of $87,001 sits well below state and national norms, and 11% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country. The county's voting pattern over the last decade is most similar to that of Dukes County and Claiborne County.
