| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,914 | 7,725 | 9,735 | |
| 2020 | R | 1,924 | 7,442 | 9,487 | |
| 2016 | R | 1,768 | 6,760 | 8,821 | |
| 2012 | R | 2,773 | 5,733 | 8,688 | |
| 2008 | R | 3,565 | 5,451 | 9,149 | |
| 2004 | R | 3,053 | 5,657 | 8,771 | |
| 2000 | R | 3,235 | 4,460 | 7,881 | |
| 1996 | R | 3,006 | 3,059 | 7,133 | |
| 1992 | D | 2,906 | 2,819 | 7,770 | |
| 1988 | R | 2,604 | 3,958 | 6,582 | |
| 1984 | R | 2,169 | 4,392 | 6,561 | |
| 1980 | R | 2,460 | 3,577 | 6,182 | |
| 1976 | R | 2,738 | 2,831 | 5,595 | |
| 1972 | R | 1,685 | 4,021 | 5,706 | |
| 1968 | R | 1,649 | 2,906 | 5,059 | |
| 1964 | R | 2,468 | 2,742 | 5,210 | |
| 1960 | R | 1,979 | 3,239 | 5,218 | |
| 1956 | R | 2,131 | 3,163 | 5,294 | |
| 1952 | R | 1,750 | 3,390 | 5,147 | |
| 1948 | R | 1,862 | 2,365 | 4,238 | |
| 1944 | R | 1,735 | 2,896 | 4,641 | |
| 1940 | R | 2,376 | 3,166 | 5,556 | |
| 1936 | R | 2,585 | 2,993 | 5,596 | |
| 1932 | D | 2,768 | 2,000 | 4,807 | |
| 1928 | R | 1,432 | 3,017 | 4,458 | |
| 1924 | R | 1,842 | 2,489 | 4,397 | |
| 1920 | R | 1,834 | 2,911 | 4,780 | |
| 1916 | R | 1,368 | 1,578 | 2,967 | |
| 1912 | R | 1,163 | 1,239 | 2,725 | |
| 1908 | R | 1,315 | 1,663 | 3,007 | |
| 1904 | R | 1,262 | 1,624 | 2,921 | |
| 1900 | R | 1,390 | 1,434 | 2,877 | |
| 1896 | D | 1,628 | 1,366 | 3,005 | |
| 1892 | D | 1,143 | 1,088 | 2,518 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Morgan County's resort economy around Lake of the Ozarks draws seasonal tourism while its permanent population votes in near-uniform Republican margins, posting a 59.7-point gap in the 2024 presidential race.
The Democratic margin in Morgan County peaked at sixteen points in 1932. By 1996 the county had flipped, voting Republican for the first time in many years. The 2024 margin was sixty points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Morgan County's median household income of $53,412 sits well below state and national norms, and 18% 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 Cumberland County and Montgomery County.