| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 23,811 | 22,179 | 47,053 | |
| 2020 | D | 23,218 | 20,629 | 45,037 | |
| 2016 | D | 20,021 | 19,459 | 43,031 | |
| 2012 | R | 19,903 | 20,006 | 41,009 | |
| 2008 | D | 21,031 | 19,028 | 40,653 | |
| 2004 | R | 14,128 | 17,070 | 31,515 | |
| 2000 | R | 11,720 | 13,991 | 27,160 | |
| 1996 | D | 10,867 | 10,517 | 24,298 | |
| 1992 | D | 10,658 | 10,606 | 24,935 | |
| 1988 | R | 8,909 | 12,326 | 21,444 | |
| 1984 | R | 7,202 | 12,428 | 19,765 | |
| 1980 | R | 7,455 | 8,222 | 17,344 | |
| 1976 | R | 7,539 | 7,971 | 15,742 | |
| 1972 | R | 2,804 | 6,381 | 9,309 | |
| 1968 | R | 2,700 | 7,098 | 11,547 | |
| 1964 | R | 973 | 1,019 | 1,995 | |
| 1960 | R | 2,157 | 4,270 | 6,445 | |
| 1956 | R | 1,848 | 4,598 | 6,559 | |
| 1952 | R | 1,600 | 3,881 | 5,491 | |
| 1948 | R | 1,126 | 2,070 | 3,473 | |
| 1944 | R | 1,652 | 1,936 | 3,607 | |
| 1940 | D | 2,168 | 1,890 | 4,075 | |
| 1936 | R | 1,832 | 1,852 | 3,713 | |
| 1932 | D | 1,805 | 1,522 | 3,405 | |
| 1928 | R | 967 | 1,861 | 2,828 | |
| 1924 | D | 1,142 | 964 | 2,169 | |
| 1920 | R | 969 | 1,160 | 2,157 | |
| 1916 | R | 765 | 891 | 1,667 | |
| 1912 | D | 684 | 349 | 1,596 | |
| 1908 | R | 734 | 795 | 1,547 | |
| 1904 | R | 650 | 725 | 1,418 | |
| 1900 | R | 1,102 | 1,391 | 2,588 | |
| 1896 | R | 1,317 | 1,594 | 2,979 | |
| 1892 | D | 1,286 | 1,128 | 2,783 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Montgomery County's political lean tracks closely with Virginia Tech's enrollment cycles — a mid-size Appalachian county that voted D+3.5 in 2024, bucking the otherwise reliably red terrain of southwestern Virginia.
The Democratic margin in Montgomery County has rarely exceeded twenty-one points in modern history; the Republican margin has rarely exceeded forty-two points. 2024 delivered the county to the Democratic candidate by three points.
Montgomery County's demographics resemble the country more than they resemble most counties. A 82% non-Hispanic-white share, a 24% poverty rate, and a median household income of $72,715 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of Newton County and Riverside County.
