| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 261 | 2,126 | 2,404 | |
| 2020 | R | 284 | 1,987 | 2,292 | |
| 2016 | R | 206 | 1,697 | 1,952 | |
| 2012 | R | 217 | 1,667 | 1,892 | |
| 2008 | R | 342 | 1,487 | 1,843 | |
| 2004 | R | 324 | 1,482 | 1,816 | |
| 2000 | R | 328 | 1,313 | 1,666 | |
| 1996 | R | 521 | 898 | 1,563 | |
| 1992 | R | 467 | 790 | 1,613 | |
| 1988 | R | 551 | 1,061 | 1,617 | |
| 1984 | R | 442 | 1,333 | 1,784 | |
| 1980 | R | 608 | 1,011 | 1,651 | |
| 1976 | R | 759 | 846 | 1,632 | |
| 1972 | R | 266 | 971 | 1,243 | |
| 1968 | R | 463 | 640 | 1,368 | |
| 1964 | D | 862 | 520 | 1,383 | |
| 1960 | R | 550 | 699 | 1,253 | |
| 1956 | R | 484 | 821 | 1,307 | |
| 1952 | R | 525 | 1,077 | 1,605 | |
| 1948 | D | 851 | 303 | 1,250 | |
| 1944 | D | 880 | 225 | 1,247 | |
| 1940 | D | 1,117 | 219 | 1,336 | |
| 1936 | D | 681 | 151 | 833 | |
| 1932 | D | 890 | 121 | 1,014 | |
| 1928 | R | 157 | 660 | 821 | |
| 1924 | D | 465 | 223 | 707 | |
| 1920 | D | 299 | 150 | 491 | |
| 1916 | D | 223 | 13 | 249 | |
| 1912 | D | 133 | 19 | 192 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Kimble County, anchored by the small ranching hub of Junction, recorded an R+77.6 margin in 2024 — among the widest in a state not short of landslide counties. Its sparse, rural character and single-industry economy have long produced some of the most uniform voting patterns in Texas.
The unraveling was not abrupt. The Democratic margin in Kimble County peaked at eighty-four points in 1916; it narrowed steadily over the late twentieth century. The 1968 election delivered the county to the Republican party for the first time in many years, by a margin of thirteen points. By 2024, the margin had widened further.
The economic and demographic context is severe. Kimble County's median household income of $69,455 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 Lampasas County and Cooke County.