| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 144,765 | 79,913 | 232,232 | |
| 2020 | D | 181,452 | 65,698 | 248,402 | |
| 2016 | D | 163,917 | 49,043 | 220,542 | |
| 2012 | D | 153,108 | 42,369 | 197,694 | |
| 2008 | D | 154,140 | 55,360 | 211,312 | |
| 2004 | D | 127,447 | 60,646 | 189,554 | |
| 2000 | D | 118,206 | 43,804 | 167,361 | |
| 1996 | D | 116,121 | 38,288 | 166,009 | |
| 1992 | D | 99,799 | 66,505 | 185,057 | |
| 1988 | D | 98,507 | 84,334 | 184,463 | |
| 1984 | R | 94,304 | 112,834 | 208,244 | |
| 1980 | D | 95,622 | 91,207 | 198,688 | |
| 1976 | D | 116,241 | 92,636 | 212,730 | |
| 1972 | R | 87,977 | 136,895 | 227,600 | |
| 1968 | D | 124,939 | 91,324 | 244,560 | |
| 1964 | D | 200,051 | 69,515 | 272,009 | |
| 1960 | D | 174,754 | 113,972 | 291,292 | |
| 1956 | R | 107,098 | 183,919 | 297,585 | |
| 1952 | D | 161,469 | 153,583 | 324,280 | |
| 1948 | D | 182,979 | 111,113 | 304,653 | |
| 1944 | D | 191,354 | 117,087 | 309,135 | |
| 1940 | D | 208,429 | 107,552 | 316,508 | |
| 1936 | D | 233,390 | 65,110 | 300,559 | |
| 1932 | D | 184,676 | 66,937 | 257,019 | |
| 1928 | D | 153,009 | 99,972 | 254,071 | |
| 1924 | D | 91,094 | 80,892 | 193,952 | |
| 1920 | R | 62,637 | 101,759 | 170,793 | |
| 1916 | D | 44,663 | 42,518 | 89,205 | |
| 1912 | D | 40,517 | 8,763 | 77,104 | |
| 1908 | R | 39,637 | 41,967 | 85,796 | |
| 1904 | D | 38,021 | 36,683 | 78,613 | |
| 1900 | D | 38,025 | 32,341 | 72,628 | |
| 1896 | R | 28,133 | 33,626 | 64,033 | |
| 1892 | D | 32,237 | 23,307 | 56,410 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Hudson County lines the western bank of the Hudson River directly across from Manhattan, and its dense urban core — anchored by Jersey City and Bayonne — consistently produces some of New Jersey's largest Democratic margins, reaching D+28 in 2024.
The Democratic margin in Hudson County has been steady. It reached its modern peak at fifty-six points in 2012; the 2024 margin was twenty-eight points, still in line with the county's long pattern.
Hudson County's political identity is inseparable from its demographic profile: a 32% non-Hispanic-white share, a median household income of $91,795, and the full diversity of a major metropolitan center. The county's voting pattern resembles other major urban centers most closely — Essex County and Broward County.
