| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,250 | 5,281 | 6,735 | |
| 2020 | R | 1,086 | 5,181 | 6,606 | |
| 2016 | R | 577 | 3,188 | 5,222 | |
| 2012 | R | 403 | 4,114 | 4,597 | |
| 2008 | R | 689 | 3,311 | 4,161 | |
| 2004 | R | 472 | 3,301 | 3,841 | |
| 2000 | R | 553 | 2,464 | 3,171 | |
| 1996 | R | 859 | 1,659 | 2,908 | |
| 1992 | R | 520 | 1,339 | 2,940 | |
| 1988 | R | 647 | 1,889 | 2,567 | |
| 1984 | R | 481 | 1,934 | 2,430 | |
| 1980 | R | 373 | 1,985 | 2,435 | |
| 1976 | R | 701 | 1,356 | 2,154 | |
| 1972 | R | 363 | 1,456 | 2,036 | |
| 1968 | R | 551 | 1,020 | 1,703 | |
| 1964 | D | 835 | 572 | 1,407 | |
| 1960 | R | 622 | 775 | 1,398 | |
| 1956 | R | 438 | 905 | 1,343 | |
| 1952 | R | 467 | 862 | 1,329 | |
| 1948 | D | 670 | 587 | 1,265 | |
| 1944 | D | 671 | 535 | 1,206 | |
| 1940 | D | 699 | 575 | 1,274 | |
| 1936 | D | 739 | 483 | 1,228 | |
| 1932 | D | 602 | 568 | 1,175 | |
| 1928 | R | 454 | 513 | 968 | |
| 1924 | R | 360 | 482 | 891 | |
| 1920 | R | 397 | 544 | 945 | |
| 1916 | D | 484 | 464 | 956 | |
| 1912 | R | 233 | 318 | 869 | |
| 1908 | R | 306 | 494 | 849 | |
| 1904 | R | 315 | 492 | 859 | |
| 1900 | R | 363 | 391 | 756 | |
| 1896 | D | 582 | 138 | 720 | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Morgan County's 2024 presidential margin of R+58.2 reflects a rural Wasatch Range electorate that has voted Republican by landslide margins for decades, with a small, homogeneous population of roughly 7,100 concentrated along the Weber River corridor.
The Republican margin in Morgan County reached its widest at eighty-one points in 2012. The margin in 2024 was sixty points, in line with the county's deep historical pattern.
Morgan County's loyalty is rooted in its place. Median household income of $130,929, a 94% non-Hispanic-white share, and a population of 12,802 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 Franklin County and Sanpete County.
