| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,921 | 7,081 | 9,093 | |
| 2020 | R | 2,213 | 6,789 | 9,110 | |
| 2016 | R | 1,778 | 5,796 | 7,739 | |
| 2012 | R | 2,208 | 5,288 | 7,563 | |
| 2008 | R | 2,516 | 5,079 | 7,652 | |
| 2004 | R | 2,752 | 5,028 | 7,818 | |
| 2000 | R | 2,768 | 4,212 | 7,075 | |
| 1996 | D | 3,236 | 2,691 | 6,646 | |
| 1992 | D | 3,188 | 2,358 | 7,060 | |
| 1988 | D | 3,476 | 3,257 | 6,763 | |
| 1984 | R | 3,228 | 4,063 | 7,305 | |
| 1980 | D | 3,403 | 2,835 | 6,319 | |
| 1976 | D | 3,825 | 2,045 | 5,900 | |
| 1972 | R | 1,452 | 2,949 | 4,423 | |
| 1968 | D | 2,796 | 1,485 | 5,683 | |
| 1964 | D | 3,777 | 1,478 | 5,263 | |
| 1960 | D | 3,472 | 2,023 | 5,511 | |
| 1956 | D | 3,067 | 2,097 | 5,171 | |
| 1952 | D | 4,132 | 2,485 | 6,627 | |
| 1948 | D | 3,289 | 688 | 4,532 | |
| 1944 | D | 4,299 | 239 | 5,058 | |
| 1940 | D | 4,784 | 559 | 5,345 | |
| 1936 | D | 3,857 | 196 | 4,058 | |
| 1932 | D | 4,416 | 215 | 4,635 | |
| 1928 | D | 2,608 | 1,642 | 4,250 | |
| 1924 | D | 4,868 | 523 | 5,434 | |
| 1920 | D | 2,165 | 408 | 3,390 | |
| 1916 | D | 2,188 | 225 | 2,526 | |
| 1912 | D | 1,667 | 153 | 2,127 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Limestone County's 2024 presidential margin of R+56.9 places it among Texas's most heavily one-sided rural counties, reflecting a broader shift in small agricultural communities away from competitive voting patterns over the past two decades.
The unraveling was not abrupt. The Democratic margin in Limestone County peaked at ninety-one points in 1932; it narrowed steadily over the late twentieth century. The 2000 election delivered the county to the Republican party for the first time in many years, by a margin of twenty points. By 2024, the margin had widened further.
The economic and demographic context is severe. Limestone County's median household income of $60,573 is among the lowest of any county in the United States; 17% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of McCurtain County and Trinity County.