| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 85,347 | 106,986 | 198,558 | |
| 2020 | D | 105,841 | 104,145 | 215,987 | |
| 2016 | D | 81,647 | 78,494 | 174,406 | |
| 2012 | D | 77,724 | 73,459 | 155,816 | |
| 2008 | D | 80,279 | 77,497 | 161,512 | |
| 2004 | R | 58,829 | 85,407 | 145,624 | |
| 2000 | R | 56,448 | 67,188 | 128,267 | |
| 1996 | D | 53,738 | 52,403 | 117,007 | |
| 1992 | D | 52,415 | 47,275 | 128,005 | |
| 1988 | R | 44,685 | 51,648 | 97,315 | |
| 1984 | R | 37,459 | 55,665 | 93,985 | |
| 1980 | R | 33,683 | 41,595 | 84,186 | |
| 1976 | D | 38,448 | 32,937 | 73,465 | |
| 1972 | R | 35,005 | 39,521 | 76,867 | |
| 1968 | D | 31,316 | 29,573 | 65,063 | |
| 1964 | D | 43,078 | 21,973 | 65,128 | |
| 1960 | D | 30,302 | 30,213 | 60,890 | |
| 1956 | D | 28,040 | 26,695 | 54,927 | |
| 1952 | R | 22,271 | 28,090 | 50,913 | |
| 1948 | R | 18,350 | 18,564 | 38,371 | |
| 1944 | D | 15,537 | 14,297 | 30,271 | |
| 1940 | D | 16,494 | 14,803 | 31,746 | |
| 1936 | D | 15,341 | 8,613 | 24,302 | |
| 1932 | D | 12,336 | 7,614 | 21,042 | |
| 1928 | R | 5,063 | 10,753 | 16,019 | |
| 1924 | R | 1,274 | 7,569 | 13,312 | |
| 1920 | R | 3,055 | 7,038 | 11,423 | |
| 1916 | D | 5,490 | 4,401 | 11,687 | |
| 1912 | D | 3,127 | 0 | 7,900 | |
| 1908 | R | 1,390 | 1,663 | 3,580 | |
| 1904 | R | 1,110 | 1,437 | 2,743 | |
| 1900 | D | 1,270 | 1,058 | 2,415 | |
| 1896 | D | 1,398 | 1,007 | 2,461 | |
| 1892 | D | 1,369 | 992 | 2,550 | |
| 1888 | D | 1,315 | 903 | 2,314 | |
| 1884 | D | 1,424 | 979 | 2,479 | |
| 1880 | D | 1,161 | 752 | 1,913 | |
| 1876 | D | 1,097 | 801 | 1,898 |
Stanislaus anchors California's agricultural heartland, where a large Latino working-class population and a dominant farming economy have combined to produce Republican presidential margins that have widened each cycle since 2012.
The Democratic margin in Stanislaus County has rarely exceeded forty points in modern history; the Republican margin has rarely exceeded forty-seven points. 2024 delivered the county to the Republican candidate by eleven points.
Stanislaus County's demographics resemble the country more than they resemble most counties. A 43% non-Hispanic-white share, a 14% poverty rate, and a median household income of $81,468 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of Fresno County and Early County.
