| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 6,373 | 9,285 | 15,745 | |
| 2020 | D | 8,332 | 6,881 | 15,346 | |
| 2016 | D | 10,397 | 2,816 | 13,588 | |
| 2012 | D | 8,303 | 2,171 | 10,563 | |
| 2008 | D | 8,554 | 2,316 | 10,939 | |
| 2004 | D | 5,948 | 4,025 | 10,034 | |
| 2000 | D | 5,995 | 3,143 | 9,229 | |
| 1996 | D | 5,307 | 1,050 | 6,586 | |
| 1992 | D | 4,540 | 2,002 | 7,339 | |
| 1988 | D | 4,395 | 1,592 | 6,003 | |
| 1984 | D | 3,063 | 1,783 | 4,861 | |
| 1980 | D | 2,932 | 1,370 | 4,367 | |
| 1976 | D | 2,840 | 924 | 3,802 | |
| 1972 | D | 1,710 | 1,477 | 3,197 | |
| 1968 | D | 1,570 | 771 | 2,506 | |
| 1964 | D | 2,113 | 545 | 2,661 | |
| 1960 | D | 1,498 | 639 | 2,139 | |
| 1956 | D | 820 | 721 | 1,560 | |
| 1952 | D | 962 | 839 | 1,802 | |
| 1948 | D | 695 | 270 | 994 | |
| 1944 | D | 787 | 302 | 1,122 | |
| 1940 | D | 875 | 166 | 1,045 | |
| 1936 | D | 890 | 166 | 1,096 | |
| 1932 | D | 847 | 199 | 1,056 | |
| 1928 | R | 180 | 311 | 491 | |
| 1924 | R | 199 | 261 | 491 | |
| 1920 | R | 173 | 296 | 475 | |
| 1916 | R | 192 | 246 | 441 | |
| 1912 | D | 186 | 143 | 409 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Maverick County, anchored by Eagle Pass on the Rio Grande, is over 95% Hispanic and long voted heavily Democratic — yet its 2024 presidential margin of R+18.5 marks a dramatic rightward movement that analysts are still working to explain.
The Democratic margin in Maverick County peaked at sixty-eight points in 1940. By 2024 the county had flipped, voting Republican for the first time in many years. The 2024 margin was eighteen points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Maverick County's median household income of $49,568 sits well below state and national norms, and 23% 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 Willacy County and Hidalgo County.