| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 8,797 | 4,302 | 13,567 | |
| 2020 | D | 9,174 | 4,007 | 13,483 | |
| 2016 | D | 7,367 | 3,702 | 12,028 | |
| 2012 | D | 6,651 | 4,775 | 11,629 | |
| 2008 | D | 6,575 | 4,691 | 11,398 | |
| 2004 | D | 5,395 | 5,045 | 10,546 | |
| 2000 | R | 4,361 | 4,762 | 9,556 | |
| 1996 | R | 3,909 | 4,319 | 8,745 | |
| 1992 | R | 3,884 | 4,333 | 9,693 | |
| 1988 | R | 3,430 | 5,576 | 9,101 | |
| 1984 | R | 3,263 | 6,234 | 9,538 | |
| 1980 | R | 2,614 | 4,475 | 8,004 | |
| 1976 | R | 3,464 | 4,174 | 7,823 | |
| 1972 | R | 4,148 | 12,463 | 16,916 | |
| 1968 | R | 2,153 | 2,963 | 6,084 | |
| 1964 | R | 4,539 | 7,900 | 12,724 | |
| 1960 | — | — | — | — | |
| 1956 | — | — | — | — | |
| 1952 | — | — | — | — | |
| 1948 | — | — | — | — | |
| 1944 | — | — | — | — | |
| 1940 | — | — | — | — | |
| 1936 | — | — | — | — | |
| 1932 | — | — | — | — | |
| 1928 | — | — | — | — | |
| 1924 | — | — | — | — | |
| 1920 | — | — | — | — | |
| 1916 | — | — | — | — | |
| 1912 | — | — | — | — | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Fairfax City, one of Virginia's independent cities, recorded a 33-point Democratic margin in 2024, reflecting the broader leftward shift seen across the dense, education-heavy Washington suburbs over the past decade.
The Democratic margin in Fairfax city reached its widest at thirty-eight points in 2020. The margin in 2024 was thirty-three points — still decisive.
Fairfax city's loyalty is rooted in its place. Median household income of $132,348, a 53% non-Hispanic-white share, and a population of 25,026 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 Fairfax County and Albemarle County.
