| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,641 | 6,314 | 8,142 | |
| 2020 | R | 2,041 | 6,816 | 9,013 | |
| 2016 | R | 1,790 | 6,504 | 8,779 | |
| 2012 | R | 2,790 | 5,467 | 8,502 | |
| 2008 | D | 4,529 | 3,632 | 8,366 | |
| 2004 | D | 5,933 | 4,207 | 10,198 | |
| 2000 | D | 5,656 | 3,353 | 9,141 | |
| 1996 | D | 6,048 | 1,917 | 8,922 | |
| 1992 | D | 6,576 | 2,021 | 9,658 | |
| 1988 | D | 6,539 | 2,786 | 9,345 | |
| 1984 | D | 7,121 | 4,656 | 11,821 | |
| 1980 | D | 7,515 | 4,164 | 12,000 | |
| 1976 | D | 8,528 | 3,072 | 11,600 | |
| 1972 | R | 5,342 | 5,985 | 11,327 | |
| 1968 | D | 6,391 | 2,970 | 10,287 | |
| 1964 | D | 8,609 | 2,467 | 11,076 | |
| 1960 | D | 8,058 | 4,104 | 12,162 | |
| 1956 | D | 7,126 | 5,196 | 12,322 | |
| 1952 | D | 8,209 | 4,100 | 12,309 | |
| 1948 | D | 6,769 | 2,909 | 9,697 | |
| 1944 | D | 6,366 | 3,449 | 9,815 | |
| 1940 | D | 7,904 | 4,128 | 12,032 | |
| 1936 | D | 7,697 | 3,477 | 11,174 | |
| 1932 | D | 5,973 | 3,555 | 9,593 | |
| 1928 | D | 4,805 | 4,000 | 8,835 | |
| 1924 | D | 3,326 | 3,010 | 7,284 | |
| 1920 | R | 2,529 | 2,674 | 5,315 | |
| 1916 | R | 1,397 | 1,504 | 3,006 | |
| 1912 | D | 1,119 | 416 | 2,476 | |
| 1908 | D | 1,031 | 994 | 2,090 | |
| 1904 | D | 912 | 784 | 1,713 | |
| 1900 | R | 767 | 956 | 1,723 | |
| 1896 | D | 813 | 678 | 1,496 | |
| 1892 | D | 782 | 541 | 1,329 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Boone County, once a union-heavy coal stronghold that backed Democratic presidential candidates for decades, has shifted dramatically over the past four election cycles — posting an R+57.4 margin in 2024 that ranks among the most lopsided results in the state.
The unraveling was not abrupt. The Democratic margin in Boone County peaked at fifty-five points in 1964; it narrowed steadily over the late twentieth century. The 2012 election delivered the county to the Republican party for the first time in many years, by a margin of thirty-one points. By 2024, the margin had widened further.
The economic and demographic context is severe. Boone County's median household income of $57,093 is among the lowest of any county in the United States; 16% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of McDowell County and Floyd County.