| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 3,635 | 15,597 | 19,381 | |
| 2020 | R | 3,955 | 15,110 | 19,227 | |
| 2016 | R | 3,369 | 13,201 | 16,977 | |
| 2012 | R | 3,813 | 12,262 | 16,212 | |
| 2008 | R | 4,630 | 11,884 | 16,655 | |
| 2004 | R | 4,678 | 11,525 | 16,301 | |
| 2000 | R | 5,041 | 9,835 | 15,080 | |
| 1996 | R | 5,693 | 6,458 | 13,400 | |
| 1992 | R | 5,322 | 5,598 | 14,466 | |
| 1988 | R | 6,128 | 7,858 | 14,045 | |
| 1984 | R | 4,747 | 8,634 | 13,423 | |
| 1980 | R | 5,163 | 5,970 | 11,330 | |
| 1976 | D | 5,499 | 4,172 | 9,715 | |
| 1972 | R | 2,233 | 5,826 | 8,065 | |
| 1968 | D | 3,447 | 2,828 | 9,471 | |
| 1964 | D | 4,809 | 3,362 | 8,181 | |
| 1960 | R | 3,296 | 3,642 | 6,982 | |
| 1956 | R | 2,710 | 4,181 | 6,914 | |
| 1952 | R | 3,462 | 4,637 | 8,109 | |
| 1948 | D | 3,242 | 1,199 | 5,198 | |
| 1944 | D | 4,342 | 467 | 5,474 | |
| 1940 | D | 5,281 | 688 | 5,976 | |
| 1936 | D | 3,749 | 289 | 4,040 | |
| 1932 | D | 4,354 | 259 | 4,627 | |
| 1928 | R | 1,747 | 1,814 | 3,561 | |
| 1924 | R | 374 | 562 | 1,191 | |
| 1920 | D | 2,355 | 323 | 3,926 | |
| 1916 | D | 1,984 | 501 | 2,677 | |
| 1912 | D | 1,737 | 444 | 2,590 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Anderson County delivered a 61.8-point Republican margin in 2024, reflecting the deep-red shift that has consolidated across rural East Texas over the past two decades. Its county seat, Palestine, anchors a sparse, timber-belt economy.
The Democratic margin in Anderson County peaked at eighty-nine points in 1932. By 1980 the county had flipped, voting Republican for the first time in many years. The 2024 margin was sixty-two points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Anderson County's median household income of $62,068 sits well below state and national norms, and 17% 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 Grayson County and Eastland County.