| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 5,657 | 9,500 | 15,437 | |
| 2020 | R | 5,404 | 8,446 | 14,224 | |
| 2016 | R | 4,007 | 7,341 | 12,050 | |
| 2012 | R | 4,477 | 6,604 | 11,325 | |
| 2008 | R | 4,473 | 5,888 | 10,474 | |
| 2004 | R | 2,739 | 5,124 | 7,921 | |
| 2000 | R | 2,070 | 3,590 | 5,852 | |
| 1996 | R | 1,875 | 2,597 | 4,843 | |
| 1992 | R | 1,811 | 2,570 | 5,324 | |
| 1988 | R | 1,519 | 2,587 | 4,146 | |
| 1984 | R | 1,450 | 2,356 | 3,841 | |
| 1980 | R | 1,318 | 1,784 | 3,332 | |
| 1976 | D | 1,513 | 1,383 | 2,958 | |
| 1972 | R | 1,992 | 3,372 | 5,441 | |
| 1968 | R | 730 | 829 | 2,195 | |
| 1964 | D | 786 | 699 | 1,489 | |
| 1960 | D | 717 | 685 | 1,410 | |
| 1956 | R | 563 | 655 | 1,267 | |
| 1952 | R | 503 | 577 | 1,090 | |
| 1948 | R | 248 | 316 | 720 | |
| 1944 | D | 348 | 340 | 690 | |
| 1940 | D | 515 | 167 | 683 | |
| 1936 | D | 469 | 295 | 766 | |
| 1932 | D | 475 | 203 | 682 | |
| 1928 | R | 309 | 413 | 722 | |
| 1924 | D | 280 | 206 | 503 | |
| 1920 | R | 249 | 253 | 503 | |
| 1916 | D | 223 | 217 | 443 | |
| 1912 | D | 256 | 48 | 407 | |
| 1908 | D | 296 | 198 | 495 | |
| 1904 | D | 279 | 188 | 469 | |
| 1900 | R | 480 | 643 | 1,125 | |
| 1896 | R | 582 | 681 | 1,272 | |
| 1892 | R | 722 | 731 | 1,620 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Tucked between the Potomac River and the Rappahannock, King George has shifted steadily rightward over two decades, posting a 25-point Republican presidential margin in 2024 despite modest population growth tied to nearby Dahlgren Naval Surface Warfare Center.
The Republican margin in King George County reached its widest at thirty points in 2004. The margin in 2024 was twenty-five points, in line with the county's deep historical pattern.
King George County's loyalty is rooted in its place. Median household income of $116,884, a 70% non-Hispanic-white share, and a population of 27,896 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 Bartholomew County and Montour County.
