| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,313 | 5,877 | 7,275 | |
| 2020 | R | 1,308 | 5,744 | 7,157 | |
| 2016 | R | 1,237 | 5,347 | 6,830 | |
| 2012 | R | 1,608 | 4,704 | 6,443 | |
| 2008 | R | 2,084 | 4,467 | 6,665 | |
| 2004 | R | 1,913 | 4,743 | 6,691 | |
| 2000 | R | 2,176 | 3,764 | 6,065 | |
| 1996 | R | 2,129 | 2,603 | 5,465 | |
| 1992 | R | 2,018 | 2,566 | 6,088 | |
| 1988 | R | 1,936 | 3,502 | 5,446 | |
| 1984 | R | 1,614 | 4,197 | 5,811 | |
| 1980 | R | 2,284 | 3,430 | 5,834 | |
| 1976 | R | 2,462 | 3,077 | 5,555 | |
| 1972 | R | 1,395 | 3,963 | 5,358 | |
| 1968 | R | 1,687 | 3,210 | 5,483 | |
| 1964 | R | 2,624 | 2,758 | 5,382 | |
| 1960 | R | 2,271 | 3,453 | 5,724 | |
| 1956 | R | 2,552 | 3,239 | 5,791 | |
| 1952 | R | 2,416 | 3,658 | 6,081 | |
| 1948 | D | 2,787 | 2,594 | 5,385 | |
| 1944 | R | 2,327 | 3,237 | 5,577 | |
| 1940 | R | 2,922 | 3,627 | 6,556 | |
| 1936 | R | 3,210 | 3,238 | 6,466 | |
| 1932 | D | 3,767 | 2,331 | 6,114 | |
| 1928 | R | 2,310 | 3,496 | 5,839 | |
| 1924 | R | 2,601 | 3,138 | 5,902 | |
| 1920 | R | 2,405 | 3,535 | 5,994 | |
| 1916 | R | 1,675 | 1,748 | 3,476 | |
| 1912 | D | 1,612 | 1,375 | 3,306 | |
| 1908 | D | 1,763 | 1,691 | 3,550 | |
| 1904 | D | 1,763 | 1,756 | 3,675 | |
| 1900 | D | 1,876 | 1,684 | 3,738 | |
| 1896 | D | 2,096 | 1,580 | 3,707 | |
| 1892 | D | 1,340 | 1,326 | 3,330 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Moniteau's 2024 presidential margin of R+62.7 places it among Missouri's most one-sided counties, reflecting the broader rural consolidation that has reshaped the state's electoral map over the past two decades.
The Republican margin in Moniteau County reached its widest at sixty-three points in 2024. The margin in 2024 was sixty-three points, in line with the county's deep historical pattern.
Moniteau County's loyalty is rooted in its place. Median household income of $65,715, a 89% non-Hispanic-white share, and a population of 15,262 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 Osage County and Barry County.
