| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 64,817 | 80,984 | 147,345 | |
| 2020 | R | 56,682 | 71,230 | 129,352 | |
| 2016 | R | 39,333 | 62,611 | 105,823 | |
| 2012 | R | 39,975 | 52,119 | 93,222 | |
| 2008 | R | 40,299 | 47,939 | 89,070 | |
| 2004 | R | 30,098 | 47,003 | 77,752 | |
| 2000 | R | 29,739 | 34,620 | 66,287 | |
| 1996 | D | 23,191 | 22,187 | 52,012 | |
| 1992 | R | 19,174 | 20,440 | 52,565 | |
| 1988 | R | 16,504 | 27,129 | 43,775 | |
| 1984 | R | 13,629 | 28,337 | 42,092 | |
| 1980 | R | 15,973 | 19,472 | 37,379 | |
| 1976 | D | 18,552 | 17,153 | 36,068 | |
| 1972 | R | 11,630 | 21,964 | 34,004 | |
| 1968 | R | 11,671 | 15,618 | 33,066 | |
| 1964 | D | 17,971 | 14,305 | 32,373 | |
| 1960 | R | 15,472 | 16,392 | 32,093 | |
| 1956 | R | 13,697 | 16,621 | 30,430 | |
| 1952 | R | 15,054 | 17,257 | 32,521 | |
| 1948 | R | 11,522 | 13,636 | 25,282 | |
| 1944 | R | 10,678 | 11,895 | 22,646 | |
| 1940 | D | 13,206 | 11,853 | 25,059 | |
| 1936 | D | 12,799 | 11,996 | 24,832 | |
| 1932 | D | 12,618 | 10,632 | 23,302 | |
| 1928 | R | 7,163 | 12,884 | 20,101 | |
| 1924 | R | 8,668 | 10,120 | 19,013 | |
| 1920 | R | 8,448 | 9,747 | 18,195 | |
| 1916 | R | 5,649 | 6,032 | 11,745 | |
| 1912 | D | 5,551 | 4,466 | 11,374 | |
| 1908 | R | 5,013 | 5,870 | 11,023 | |
| 1904 | R | 4,407 | 5,915 | 10,473 | |
| 1900 | R | 4,364 | 4,961 | 9,458 | |
| 1896 | R | 3,826 | 4,541 | 8,588 | |
| 1892 | D | 4,279 | 4,147 | 8,526 | |
| 1888 | R | 3,982 | 4,046 | 8,139 | |
| 1884 | D | 4,447 | 3,018 | 7,475 | |
| 1880 | D | 3,993 | 3,373 | 7,449 | |
| 1876 | D | 3,490 | 2,763 | 6,253 |
Retiree migration to Sussex County's coastal communities has reshaped its electorate over two decades, and the county delivered an R+11.0 margin in 2024 — its widest Republican gap in recent cycles.
The Republican margin in Sussex County reached its widest at thirty-five points in 1984. The margin in 2024 was eleven points, in line with the county's deep historical pattern.
Sussex County's loyalty is rooted in its place. Median household income of $81,497, a 74% non-Hispanic-white share, and a population of 255,626 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 Worcester County and Warren County.
