| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 71,813 | 58,783 | 133,181 | |
| 2020 | D | 71,189 | 54,817 | 131,042 | |
| 2016 | D | 55,844 | 50,403 | 114,274 | |
| 2012 | D | 61,551 | 43,900 | 108,057 | |
| 2008 | D | 64,799 | 42,389 | 109,161 | |
| 2004 | D | 58,702 | 49,526 | 110,033 | |
| 2000 | D | 46,618 | 42,304 | 94,550 | |
| 1996 | D | 42,317 | 26,594 | 82,979 | |
| 1992 | D | 35,507 | 32,241 | 94,563 | |
| 1988 | R | 30,262 | 46,334 | 77,249 | |
| 1984 | R | 28,241 | 43,554 | 72,070 | |
| 1980 | R | 28,279 | 31,412 | 67,837 | |
| 1976 | D | 31,996 | 27,380 | 60,916 | |
| 1972 | R | 22,464 | 30,452 | 52,936 | |
| 1968 | D | 28,817 | 18,931 | 48,652 | |
| 1964 | D | 34,083 | 13,339 | 47,467 | |
| 1960 | D | 26,171 | 25,763 | 51,937 | |
| 1956 | R | 17,910 | 29,256 | 47,166 | |
| 1952 | R | 20,524 | 27,045 | 47,664 | |
| 1948 | D | 20,554 | 17,819 | 38,737 | |
| 1944 | D | 21,386 | 18,122 | 39,547 | |
| 1940 | D | 22,276 | 16,547 | 38,855 | |
| 1936 | D | 18,017 | 17,827 | 37,070 | |
| 1932 | R | 14,760 | 17,301 | 32,319 | |
| 1928 | R | 10,030 | 18,671 | 28,820 | |
| 1924 | R | 6,004 | 16,244 | 23,828 | |
| 1920 | R | 6,852 | 13,536 | 20,580 | |
| 1916 | D | 6,854 | 6,375 | 13,435 | |
| 1912 | D | 5,121 | 3,960 | 13,089 | |
| 1908 | R | 4,090 | 6,700 | 11,235 | |
| 1904 | R | 2,866 | 7,096 | 10,373 | |
| 1900 | R | 4,046 | 6,949 | 11,295 | |
| 1896 | R | 3,456 | 7,532 | 11,336 | |
| 1892 | R | 5,237 | 6,387 | 12,006 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
York County, anchored by communities like Biddeford and Kittery along the New Hampshire border, has trended reliably Democratic in recent cycles, posting a 10.5-point margin in 2024 while absorbing an influx of out-of-state transplants that continues to reshape its electorate.
The Democratic margin in York County reached its widest at forty-four points in 1964. The margin in 2024 was ten points — still decisive.
York County's loyalty is rooted in its place. Median household income of $88,333, a 91% non-Hispanic-white share, and a population of 216,731 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 Merrimack County and Sagadahoc County.
