| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 13,982 | 9,917 | 24,456 | |
| 2020 | D | 13,528 | 9,755 | 24,280 | |
| 2016 | D | 10,664 | 9,304 | 21,616 | |
| 2012 | D | 11,821 | 8,429 | 20,794 | |
| 2008 | D | 12,152 | 8,721 | 21,301 | |
| 2004 | D | 11,107 | 9,497 | 21,079 | |
| 2000 | D | 8,844 | 8,052 | 18,406 | |
| 1996 | D | 8,417 | 5,346 | 16,924 | |
| 1992 | D | 6,828 | 5,917 | 18,513 | |
| 1988 | R | 6,212 | 8,825 | 15,158 | |
| 1984 | R | 5,208 | 9,222 | 14,520 | |
| 1980 | R | 5,663 | 5,946 | 13,145 | |
| 1976 | R | 5,529 | 5,988 | 11,876 | |
| 1972 | R | 3,414 | 6,463 | 9,890 | |
| 1968 | D | 5,553 | 4,126 | 9,888 | |
| 1964 | D | 7,006 | 2,733 | 9,740 | |
| 1960 | R | 3,965 | 6,386 | 10,351 | |
| 1956 | R | 2,301 | 6,201 | 8,502 | |
| 1952 | R | 2,850 | 5,799 | 8,668 | |
| 1948 | R | 2,556 | 3,745 | 6,372 | |
| 1944 | D | 4,003 | 3,883 | 7,889 | |
| 1940 | D | 4,575 | 3,504 | 8,092 | |
| 1936 | R | 3,273 | 3,707 | 7,130 | |
| 1932 | R | 2,763 | 4,220 | 7,037 | |
| 1928 | R | 1,583 | 4,605 | 6,208 | |
| 1924 | R | 1,084 | 3,518 | 4,802 | |
| 1920 | R | 1,709 | 3,857 | 5,642 | |
| 1916 | R | 1,791 | 1,828 | 3,730 | |
| 1912 | D | 1,331 | 885 | 3,497 | |
| 1908 | R | 838 | 1,776 | 2,775 | |
| 1904 | R | 754 | 1,948 | 2,918 | |
| 1900 | R | 1,025 | 2,245 | 3,481 | |
| 1896 | R | 957 | 2,725 | 3,806 | |
| 1892 | R | 1,278 | 2,265 | 3,697 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Sagadahoc, anchored by the small city of Bath and its historic shipbuilding identity, has posted double-digit Democratic presidential margins in recent cycles, standing out as one of coastal Maine's more consistent blue-leaning jurisdictions.
The Democratic margin in Sagadahoc County reached its widest at forty-four points in 1964. The margin in 2024 was seventeen points — still decisive.
Sagadahoc County's loyalty is rooted in its place. Median household income of $87,806, a 93% non-Hispanic-white share, and a population of 37,285 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 York County and Hancock County.
