| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,820 | 16,939 | 19,887 | |
| 2020 | R | 2,877 | 15,809 | 18,919 | |
| 2016 | R | 2,380 | 13,209 | 16,013 | |
| 2012 | R | 2,971 | 12,015 | 15,138 | |
| 2008 | R | 3,790 | 11,222 | 15,164 | |
| 2004 | R | 4,225 | 10,232 | 14,526 | |
| 2000 | R | 4,180 | 8,448 | 12,808 | |
| 1996 | R | 5,032 | 5,174 | 11,320 | |
| 1992 | D | 4,776 | 4,511 | 12,208 | |
| 1988 | R | 5,242 | 5,991 | 11,265 | |
| 1984 | R | 4,614 | 7,325 | 11,976 | |
| 1980 | D | 4,894 | 4,836 | 9,852 | |
| 1976 | D | 4,902 | 3,272 | 8,211 | |
| 1972 | R | 1,879 | 4,736 | 6,624 | |
| 1968 | D | 2,480 | 1,519 | 6,885 | |
| 1964 | D | 4,027 | 2,222 | 6,262 | |
| 1960 | D | 3,248 | 2,262 | 5,554 | |
| 1956 | R | 1,995 | 2,737 | 4,764 | |
| 1952 | D | 3,040 | 2,391 | 5,437 | |
| 1948 | D | 2,118 | 555 | 3,165 | |
| 1944 | D | 2,369 | 446 | 3,369 | |
| 1940 | D | 3,480 | 518 | 3,998 | |
| 1936 | D | 2,243 | 321 | 2,567 | |
| 1932 | D | 2,900 | 129 | 3,040 | |
| 1928 | D | 1,553 | 649 | 2,210 | |
| 1924 | D | 2,611 | 258 | 2,911 | |
| 1920 | D | 1,222 | 616 | 2,330 | |
| 1916 | D | 1,346 | 198 | 1,675 | |
| 1912 | D | 896 | 168 | 1,211 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Upshur County delivered a 71-point Republican margin in 2024, reflecting the deep-red realignment that has reshaped rural East Texas over the past two decades. Its economy centers on timber, agriculture, and oil-field services.
The unraveling was not abrupt. The Democratic margin in Upshur County peaked at ninety-one points in 1932; it narrowed steadily over the late twentieth century. The 1996 election delivered the county to the Republican party for the first time in many years, by a margin of one points. By 2024, the margin had widened further.
The economic and demographic context is severe. Upshur County's median household income of $66,208 is among the lowest of any county in the United States; 12% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Henderson County and Lamar County.