| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 10,725 | 18,491 | 30,072 | |
| 2020 | R | 11,230 | 17,676 | 29,796 | |
| 2016 | R | 7,910 | 13,170 | 22,998 | |
| 2012 | R | 7,711 | 11,275 | 19,761 | |
| 2008 | R | 8,866 | 12,007 | 21,401 | |
| 2004 | R | 5,687 | 12,076 | 18,024 | |
| 2000 | R | 5,546 | 9,838 | 16,127 | |
| 1996 | R | 5,789 | 7,971 | 15,470 | |
| 1992 | R | 5,785 | 7,333 | 16,895 | |
| 1988 | R | 5,444 | 8,937 | 14,563 | |
| 1984 | R | 5,339 | 9,780 | 15,397 | |
| 1980 | R | 4,896 | 7,942 | 14,111 | |
| 1976 | D | 6,451 | 5,496 | 12,285 | |
| 1972 | R | 4,435 | 6,623 | 11,630 | |
| 1968 | R | 4,461 | 5,371 | 11,150 | |
| 1964 | D | 6,766 | 4,964 | 11,739 | |
| 1960 | R | 4,882 | 5,293 | 10,233 | |
| 1956 | R | 3,767 | 4,782 | 8,576 | |
| 1952 | R | 3,589 | 5,586 | 9,237 | |
| 1948 | D | 3,608 | 3,403 | 7,263 | |
| 1944 | D | 3,254 | 2,379 | 5,646 | |
| 1940 | D | 4,660 | 2,471 | 7,217 | |
| 1936 | D | 4,125 | 1,332 | 5,561 | |
| 1932 | D | 3,138 | 1,176 | 4,493 | |
| 1928 | R | 1,990 | 2,022 | 4,042 | |
| 1924 | R | 426 | 1,735 | 3,782 | |
| 1920 | R | 696 | 2,012 | 2,846 | |
| 1916 | D | 1,980 | 1,530 | 3,634 | |
| 1912 | D | 1,242 | 0 | 2,611 | |
| 1908 | R | 902 | 1,270 | 2,299 | |
| 1904 | R | 633 | 1,235 | 1,949 | |
| 1900 | R | 971 | 1,179 | 2,180 | |
| 1896 | R | 991 | 1,204 | 2,237 | |
| 1892 | D | 1,198 | 1,079 | 2,376 | |
| 1888 | D | 1,170 | 1,130 | 2,437 | |
| 1884 | R | 1,047 | 1,214 | 2,310 | |
| 1880 | D | 1,185 | 1,165 | 2,357 | |
| 1876 | R | 1,076 | 1,250 | 2,326 |
Yuba County, anchored by Marysville along the Feather River, has shifted steadily rightward over the past decade, delivering double-digit Republican presidential margins even as California's overall tilt deepens in the opposite direction.
The Democratic margin in Yuba County peaked at fifty points in 1936. By 1980 the county had flipped, voting Republican for the first time in many years. The 2024 margin was twenty-six points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Yuba County's median household income of $76,373 sits well below state and national norms, and 14% 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 Otero County and King George County.