| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 110,937 | 92,474 | 208,604 | |
| 2020 | D | 125,948 | 87,318 | 220,793 | |
| 2016 | D | 112,590 | 78,685 | 209,336 | |
| 2012 | D | 123,619 | 73,392 | 200,399 | |
| 2008 | D | 121,454 | 71,350 | 197,720 | |
| 2004 | D | 113,710 | 70,925 | 186,639 | |
| 2000 | D | 100,103 | 59,558 | 172,093 | |
| 1996 | D | 105,050 | 48,513 | 172,239 | |
| 1992 | D | 86,026 | 54,621 | 188,265 | |
| 1988 | D | 97,332 | 74,872 | 173,420 | |
| 1984 | R | 84,985 | 89,330 | 174,971 | |
| 1980 | D | 80,369 | 72,528 | 179,720 | |
| 1976 | D | 110,028 | 70,008 | 185,290 | |
| 1972 | D | 94,945 | 86,164 | 182,133 | |
| 1968 | D | 111,376 | 55,783 | 178,150 | |
| 1964 | D | 133,085 | 44,299 | 178,219 | |
| 1960 | D | 121,061 | 72,054 | 193,828 | |
| 1956 | R | 81,743 | 104,689 | 187,367 | |
| 1952 | R | 90,936 | 98,641 | 190,193 | |
| 1948 | D | 94,609 | 70,256 | 167,720 | |
| 1944 | D | 91,819 | 63,293 | 155,486 | |
| 1940 | D | 89,477 | 64,502 | 154,796 | |
| 1936 | D | 80,164 | 51,288 | 140,180 | |
| 1932 | D | 63,189 | 55,032 | 123,629 | |
| 1928 | D | 62,056 | 56,063 | 118,822 | |
| 1924 | R | 19,079 | 46,489 | 77,515 | |
| 1920 | R | 19,156 | 46,741 | 67,820 | |
| 1916 | R | 17,028 | 18,207 | 36,277 | |
| 1912 | R | 10,620 | 11,393 | 30,423 | |
| 1908 | R | 9,910 | 14,485 | 27,753 | |
| 1904 | R | 9,369 | 14,962 | 25,972 | |
| 1900 | R | 10,424 | 13,757 | 25,170 | |
| 1896 | R | 6,787 | 16,064 | 23,744 | |
| 1892 | R | 11,228 | 11,373 | 23,294 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Hampden County, anchored by Springfield, posts Democratic margins well below the statewide average, reflecting a post-industrial workforce and Latino population growth that make it one of the more competitive corners of an otherwise lopsided state.
The Democratic margin in Hampden County reached its widest at fifty points in 1964. The margin in 2024 was nine points — still decisive.
Hampden County's loyalty is rooted in its place. Median household income of $71,306, a 64% non-Hispanic-white share, and a population of 462,815 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 Providence County and Greensville County.
