| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 31,695 | 51,999 | 84,457 | |
| 2020 | R | 31,224 | 50,797 | 83,311 | |
| 2016 | R | 24,881 | 44,314 | 74,225 | |
| 2012 | R | 29,890 | 41,034 | 72,547 | |
| 2008 | R | 29,250 | 41,580 | 72,147 | |
| 2004 | R | 24,783 | 42,715 | 67,882 | |
| 2000 | R | 19,065 | 33,523 | 54,094 | |
| 1996 | R | 18,821 | 26,850 | 50,684 | |
| 1992 | R | 14,249 | 24,125 | 50,789 | |
| 1988 | R | 12,504 | 29,208 | 42,051 | |
| 1984 | R | 9,817 | 30,843 | 41,033 | |
| 1980 | R | 13,144 | 24,096 | 39,515 | |
| 1976 | R | 13,361 | 19,098 | 33,079 | |
| 1972 | R | 7,746 | 21,909 | 30,568 | |
| 1968 | R | 9,533 | 14,810 | 28,467 | |
| 1964 | D | 15,611 | 11,480 | 27,091 | |
| 1960 | R | 9,128 | 17,743 | 26,871 | |
| 1956 | R | 8,337 | 15,647 | 23,984 | |
| 1952 | R | 9,140 | 15,027 | 24,167 | |
| 1948 | R | 9,375 | 9,471 | 18,907 | |
| 1944 | R | 8,439 | 11,135 | 19,574 | |
| 1940 | D | 11,298 | 10,813 | 22,111 | |
| 1936 | D | 12,322 | 8,062 | 20,830 | |
| 1932 | D | 10,410 | 8,050 | 18,704 | |
| 1928 | R | 5,619 | 12,072 | 17,788 | |
| 1924 | R | 5,890 | 8,281 | 15,393 | |
| 1920 | D | 8,610 | 7,572 | 16,298 | |
| 1916 | D | 6,172 | 3,380 | 9,744 | |
| 1912 | D | 5,101 | 1,672 | 8,879 | |
| 1908 | D | 5,821 | 4,023 | 9,998 | |
| 1904 | D | 4,632 | 4,084 | 9,024 | |
| 1900 | D | 5,431 | 3,738 | 9,313 | |
| 1896 | D | 5,250 | 3,432 | 8,756 | |
| 1892 | D | 4,650 | 3,004 | 7,941 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Fairfield County sits on Columbus's southeastern fringe, and despite steady residential expansion from the metro, it has returned Republican presidential margins above 20 points in every cycle since 2000.
The Republican margin in Fairfield County reached its widest at fifty-one points in 1984. The margin in 2024 was twenty-four points, in line with the county's deep historical pattern.
Fairfield County's loyalty is rooted in its place. Median household income of $90,966, a 82% non-Hispanic-white share, and a population of 163,453 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 Northumberland County and Mobile County.
