| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 496 | 2,499 | 3,040 | |
| 2020 | R | 499 | 2,653 | 3,226 | |
| 2016 | R | 414 | 2,299 | 2,905 | |
| 2012 | R | 615 | 2,138 | 2,806 | |
| 2008 | R | 742 | 2,042 | 2,836 | |
| 2004 | R | 546 | 2,309 | 2,895 | |
| 2000 | R | 575 | 2,196 | 2,862 | |
| 1996 | R | 806 | 1,695 | 2,941 | |
| 1992 | R | 604 | 1,589 | 3,165 | |
| 1988 | R | 976 | 2,160 | 3,150 | |
| 1984 | R | 690 | 2,508 | 3,215 | |
| 1980 | R | 769 | 2,598 | 3,603 | |
| 1976 | R | 1,329 | 2,035 | 3,437 | |
| 1972 | R | 883 | 2,406 | 3,289 | |
| 1968 | R | 934 | 2,179 | 3,404 | |
| 1964 | D | 1,905 | 1,893 | 3,798 | |
| 1960 | R | 1,547 | 2,809 | 4,356 | |
| 1956 | R | 1,277 | 3,021 | 4,298 | |
| 1952 | R | 1,283 | 3,453 | 4,736 | |
| 1948 | R | 1,778 | 2,235 | 4,013 | |
| 1944 | R | 1,665 | 2,865 | 4,530 | |
| 1940 | R | 2,014 | 3,334 | 5,348 | |
| 1936 | D | 3,095 | 2,728 | 6,025 | |
| 1932 | D | 4,360 | 1,862 | 6,291 | |
| 1928 | R | 2,260 | 3,816 | 6,099 | |
| 1924 | R | 1,782 | 2,013 | 5,537 | |
| 1920 | R | 1,461 | 3,108 | 4,711 | |
| 1916 | D | 2,005 | 1,225 | 3,308 | |
| 1912 | D | 1,360 | 570 | 2,953 | |
| 1908 | D | 1,583 | 1,580 | 3,215 | |
| 1904 | R | 471 | 1,823 | 2,861 | |
| 1900 | R | 1,336 | 1,524 | 2,915 | |
| 1896 | D | 1,366 | 1,099 | 2,500 | |
| 1892 | D | 887 | 188 | 2,117 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Boone County's 2024 presidential margin of R+66 points reflects a broader consolidation of rural Nebraska toward one party over the past decade, with a shrinking and aging agricultural population amplifying that shift.
The Republican margin in Boone County reached its widest at sixty-seven points in 2020. The margin in 2024 was sixty-six points, in line with the county's deep historical pattern.
Boone County's loyalty is rooted in its place. Median household income of $74,947, a 94% non-Hispanic-white share, and a population of 5,356 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 Pierce County and Kimball County.
