| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 27,130 | 59,539 | 88,919 | |
| 2020 | R | 30,000 | 60,789 | 92,930 | |
| 2016 | R | 22,301 | 51,778 | 81,024 | |
| 2012 | R | 25,819 | 48,067 | 76,501 | |
| 2008 | R | 28,867 | 49,588 | 80,390 | |
| 2004 | R | 24,339 | 52,249 | 77,731 | |
| 2000 | R | 20,127 | 43,278 | 66,544 | |
| 1996 | R | 20,848 | 34,736 | 62,961 | |
| 1992 | R | 21,605 | 28,190 | 68,359 | |
| 1988 | R | 21,171 | 32,402 | 54,585 | |
| 1984 | R | 19,298 | 33,041 | 53,127 | |
| 1980 | R | 15,364 | 27,547 | 47,418 | |
| 1976 | D | 19,200 | 17,273 | 37,854 | |
| 1972 | D | 17,214 | 16,618 | 35,603 | |
| 1968 | D | 14,510 | 11,821 | 29,230 | |
| 1964 | D | 19,142 | 9,178 | 28,350 | |
| 1960 | D | 14,691 | 9,462 | 24,301 | |
| 1956 | D | 11,239 | 8,833 | 20,149 | |
| 1952 | R | 7,386 | 9,507 | 17,013 | |
| 1948 | D | 7,177 | 5,010 | 12,623 | |
| 1944 | D | 5,798 | 4,023 | 9,843 | |
| 1940 | D | 8,662 | 3,909 | 12,733 | |
| 1936 | D | 5,236 | 2,159 | 7,510 | |
| 1932 | D | 4,170 | 1,382 | 5,782 | |
| 1928 | R | 2,025 | 2,301 | 4,408 | |
| 1924 | R | 598 | 1,951 | 4,651 | |
| 1920 | R | 1,028 | 2,108 | 3,396 | |
| 1916 | D | 2,828 | 2,008 | 5,398 | |
| 1912 | D | 2,040 | 0 | 4,684 | |
| 1908 | R | 1,389 | 1,891 | 3,972 | |
| 1904 | R | 935 | 1,891 | 3,432 | |
| 1900 | D | 1,948 | 1,681 | 3,761 | |
| 1896 | D | 1,936 | 1,210 | 3,222 | |
| 1892 | R | 1,137 | 1,234 | 2,885 | |
| 1888 | R | 1,394 | 1,490 | 2,939 | |
| 1884 | R | 1,042 | 1,173 | 2,276 | |
| 1880 | D | 877 | 868 | 1,755 | |
| 1876 | D | 641 | 625 | 1,226 |
Shasta County, anchored by Redding in the northern Sacramento Valley, has delivered Republican presidential margins exceeding 30 points in each of the last three cycles, making it a consistent outlier within a heavily Democratic state.
The Democratic margin in Shasta County peaked at forty-eight points in 1932. By 1980 the county had flipped, voting Republican for the first time in many years. The 2024 margin was thirty-six points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Shasta County's median household income of $72,636 sits well below state and national norms, and 13% 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 Fergus County and Lemhi County.
