| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 340,726 | 258,254 | 607,092 | |
| 2020 | D | 395,014 | 245,398 | 647,403 | |
| 2016 | D | 329,894 | 195,216 | 546,275 | |
| 2012 | D | 273,665 | 188,589 | 466,359 | |
| 2008 | D | 273,009 | 186,832 | 462,711 | |
| 2004 | D | 193,354 | 192,539 | 388,044 | |
| 2000 | D | 140,236 | 134,531 | 280,155 | |
| 1996 | R | 105,539 | 106,059 | 231,126 | |
| 1992 | R | 82,683 | 108,788 | 237,011 | |
| 1988 | R | 54,023 | 117,237 | 172,770 | |
| 1984 | R | 48,752 | 122,068 | 170,985 | |
| 1980 | R | 48,767 | 87,454 | 143,219 | |
| 1976 | R | 58,442 | 70,451 | 130,437 | |
| 1972 | R | 23,840 | 94,516 | 118,777 | |
| 1968 | R | 22,548 | 50,874 | 100,669 | |
| 1964 | R | 38,248 | 48,884 | 87,132 | |
| 1960 | R | 19,729 | 48,244 | 67,973 | |
| 1956 | R | 14,532 | 37,482 | 52,014 | |
| 1952 | R | 12,141 | 29,813 | 41,954 | |
| 1948 | R | 10,063 | 11,971 | 25,652 | |
| 1944 | D | 12,008 | 8,826 | 20,834 | |
| 1940 | D | 12,821 | 8,198 | 21,019 | |
| 1936 | D | 7,314 | 4,394 | 11,708 | |
| 1932 | D | 4,877 | 3,522 | 8,399 | |
| 1928 | R | 2,616 | 6,524 | 9,315 | |
| 1924 | D | 1,883 | 1,653 | 4,108 | |
| 1920 | D | 2,035 | 1,447 | 3,668 | |
| 1916 | D | 1,261 | 415 | 1,757 | |
| 1912 | D | 1,256 | 228 | 1,843 | |
| 1908 | D | 952 | 485 | 1,609 | |
| 1904 | D | 874 | 315 | 1,247 | |
| 1900 | D | 857 | 402 | 1,385 | |
| 1896 | D | 1,086 | 565 | 1,740 | |
| 1892 | D | 1,142 | 0 | 1,240 | |
| 1888 | — | — | — | — | |
| 1884 | D | 1,867 | 1,110 | 2,977 | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Orange County anchors Florida's I-4 corridor and has trended consistently Democratic since 2008, driven by rapid population growth among Latino and college-educated residents around the Orlando metro core.
The 2000 election was the turning point, when the Democratic candidate carried the county by two points. The 2024 margin was fourteen points, in line with the county's new direction.
The demographics suggest why. A population of 1,471,937, a 42% non-Hispanic-white share, and a median household income of $79,719 situate the county in the broader realignment patterns of recent cycles. The county's voting pattern over the last decade is most similar to that of Prince William County and Lake County.
