| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 3,622 | 5,625 | 9,509 | |
| 2020 | R | 4,088 | 5,950 | 10,280 | |
| 2016 | R | 3,122 | 5,185 | 8,877 | |
| 2012 | R | 3,498 | 5,140 | 9,038 | |
| 2008 | R | 4,100 | 5,298 | 9,677 | |
| 2004 | R | 3,251 | 5,215 | 8,658 | |
| 2000 | R | 2,816 | 4,727 | 8,074 | |
| 1996 | R | 2,920 | 3,976 | 7,949 | |
| 1992 | D | 3,023 | 2,982 | 8,287 | |
| 1988 | R | 2,998 | 3,768 | 6,910 | |
| 1984 | R | 2,399 | 3,989 | 6,518 | |
| 1980 | R | 1,889 | 3,082 | 5,608 | |
| 1976 | D | 2,093 | 2,012 | 4,317 | |
| 1972 | R | 1,487 | 2,122 | 3,779 | |
| 1968 | R | 1,187 | 1,496 | 2,997 | |
| 1964 | D | 1,704 | 1,264 | 2,968 | |
| 1960 | R | 1,338 | 1,599 | 2,963 | |
| 1956 | R | 1,031 | 1,577 | 2,615 | |
| 1952 | R | 969 | 1,941 | 2,946 | |
| 1948 | R | 983 | 1,378 | 2,467 | |
| 1944 | D | 1,203 | 965 | 2,185 | |
| 1940 | D | 1,935 | 1,035 | 3,003 | |
| 1936 | D | 1,907 | 621 | 2,563 | |
| 1932 | D | 1,386 | 560 | 2,038 | |
| 1928 | R | 517 | 656 | 1,192 | |
| 1924 | R | 168 | 344 | 855 | |
| 1920 | R | 320 | 484 | 874 | |
| 1916 | D | 802 | 451 | 1,377 | |
| 1912 | D | 689 | 0 | 1,170 | |
| 1908 | D | 480 | 352 | 955 | |
| 1904 | D | 486 | 461 | 1,075 | |
| 1900 | D | 717 | 505 | 1,238 | |
| 1896 | D | 829 | 563 | 1,419 | |
| 1892 | D | 526 | 404 | 1,012 | |
| 1888 | D | 664 | 526 | 1,208 | |
| 1884 | D | 618 | 474 | 1,109 | |
| 1880 | D | 598 | 432 | 1,030 | |
| 1876 | D | 554 | 364 | 918 |
Mariposa's small, rural population—anchored by tourism and resource industries near Yosemite National Park—has backed Republican presidential candidates by double digits in each of the last four cycles, with the 2024 margin reaching R+21.
The Republican margin in Mariposa County reached its widest at thirty-three points in 1952. The margin in 2024 was twenty-one points, in line with the county's deep historical pattern.
Mariposa County's loyalty is rooted in its place. Median household income of $68,412, a 77% non-Hispanic-white share, and a population of 17,082 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 Flathead County and Ravalli County.
