| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 17,500 | 37,580 | 56,102 | |
| 2020 | R | 17,186 | 33,279 | 51,539 | |
| 2016 | R | 12,321 | 28,244 | 43,364 | |
| 2012 | R | 14,275 | 22,156 | 37,307 | |
| 2008 | R | 15,994 | 20,841 | 37,291 | |
| 2004 | R | 12,244 | 21,293 | 33,785 | |
| 2000 | R | 8,797 | 13,619 | 23,010 | |
| 1996 | R | 8,321 | 9,859 | 20,576 | |
| 1992 | R | 7,159 | 9,134 | 20,029 | |
| 1988 | R | 6,313 | 10,761 | 17,135 | |
| 1984 | R | 6,181 | 12,887 | 19,092 | |
| 1980 | R | 6,783 | 9,955 | 17,454 | |
| 1976 | R | 8,216 | 8,935 | 17,151 | |
| 1972 | R | 4,523 | 10,954 | 15,477 | |
| 1968 | R | 4,929 | 7,223 | 14,473 | |
| 1964 | D | 8,628 | 5,457 | 14,085 | |
| 1960 | R | 7,072 | 8,369 | 15,441 | |
| 1956 | R | 5,649 | 9,071 | 14,720 | |
| 1952 | R | 7,111 | 8,149 | 15,260 | |
| 1948 | D | 6,797 | 6,042 | 12,873 | |
| 1944 | R | 5,819 | 6,151 | 11,970 | |
| 1940 | D | 8,658 | 6,562 | 15,220 | |
| 1936 | D | 8,336 | 6,585 | 14,960 | |
| 1932 | D | 7,009 | 6,370 | 13,527 | |
| 1928 | R | 3,540 | 8,477 | 12,059 | |
| 1924 | R | 4,366 | 5,427 | 10,205 | |
| 1920 | R | 4,399 | 5,259 | 9,748 | |
| 1916 | D | 2,938 | 2,802 | 5,826 | |
| 1912 | D | 2,703 | 1,349 | 5,391 | |
| 1908 | R | 2,563 | 2,675 | 5,352 | |
| 1904 | R | 2,488 | 2,548 | 5,129 | |
| 1900 | D | 2,506 | 2,287 | 4,816 | |
| 1896 | R | 2,084 | 2,497 | 4,655 | |
| 1892 | R | 2,133 | 2,259 | 4,418 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Berkeley has added residents faster than almost any other West Virginia county over the past two decades, driven by Washington D.C. commuter sprawl, yet its presidential margins have moved sharply rightward even as its population diversified.
The Republican margin in Berkeley County reached its widest at forty-two points in 1972. The margin in 2024 was thirty-six points, in line with the county's deep historical pattern.
Berkeley County's loyalty is rooted in its place. Median household income of $80,815, a 81% non-Hispanic-white share, and a population of 129,514 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 Green Lake County and Bradford County.
