| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,214 | 5,776 | 8,049 | |
| 2020 | R | 2,411 | 5,390 | 7,893 | |
| 2016 | R | 2,128 | 4,708 | 7,040 | |
| 2012 | R | 2,490 | 4,331 | 6,915 | |
| 2008 | R | 2,488 | 3,970 | 6,529 | |
| 2004 | R | 1,862 | 3,499 | 5,397 | |
| 2000 | R | 1,754 | 2,947 | 4,788 | |
| 1996 | R | 1,625 | 2,119 | 4,144 | |
| 1992 | R | 1,534 | 2,062 | 4,224 | |
| 1988 | R | 1,359 | 2,187 | 3,594 | |
| 1984 | R | 1,432 | 2,336 | 3,804 | |
| 1980 | R | 1,643 | 1,969 | 3,701 | |
| 1976 | D | 1,715 | 1,634 | 3,458 | |
| 1972 | R | 778 | 1,606 | 2,471 | |
| 1968 | R | 830 | 857 | 2,528 | |
| 1964 | R | 884 | 1,348 | 2,239 | |
| 1960 | R | 708 | 784 | 1,524 | |
| 1956 | R | 403 | 745 | 1,728 | |
| 1952 | R | 703 | 832 | 1,551 | |
| 1948 | D | 443 | 372 | 1,058 | |
| 1944 | D | 553 | 295 | 851 | |
| 1940 | D | 562 | 267 | 831 | |
| 1936 | D | 753 | 239 | 997 | |
| 1932 | D | 701 | 142 | 854 | |
| 1928 | D | 498 | 277 | 775 | |
| 1924 | D | 372 | 153 | 540 | |
| 1920 | D | 389 | 179 | 574 | |
| 1916 | D | 403 | 80 | 488 | |
| 1912 | D | 325 | 32 | 409 | |
| 1908 | D | 247 | 73 | 322 | |
| 1904 | D | 320 | 76 | 415 | |
| 1900 | R | 608 | 838 | 1,472 | |
| 1896 | R | 663 | 899 | 1,571 | |
| 1892 | R | 501 | 563 | 1,226 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Amelia County's R+44.4 margin in 2024 places it among Virginia's most lopsided presidential results, reflecting a sparsely populated Piedmont community where rural white voters have shifted decisively away from statewide Democratic trends over the past two decades.
The Democratic margin in Amelia County peaked at seventy-two points in 1912. By 1980 the county had flipped, voting Republican for the first time in many years. The 2024 margin was forty-four points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Amelia County's median household income of $76,717 sits well below state and national norms, and 10% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country. The county's voting pattern over the last decade is most similar to that of Choctaw County and Grayson County.