| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,816 | 12,457 | 15,415 | |
| 2020 | R | 2,951 | 11,447 | 14,586 | |
| 2016 | R | 2,320 | 9,637 | 12,274 | |
| 2012 | R | 2,252 | 9,265 | 11,649 | |
| 2008 | R | 2,821 | 8,786 | 11,721 | |
| 2004 | R | 2,582 | 8,072 | 10,702 | |
| 2000 | R | 2,407 | 6,661 | 9,227 | |
| 1996 | R | 2,719 | 4,669 | 8,001 | |
| 1992 | R | 2,278 | 4,015 | 7,890 | |
| 1988 | R | 2,593 | 4,524 | 7,160 | |
| 1984 | R | 1,941 | 4,872 | 6,834 | |
| 1980 | R | 1,893 | 3,734 | 5,753 | |
| 1976 | R | 2,313 | 2,686 | 5,033 | |
| 1972 | R | 1,043 | 3,084 | 4,154 | |
| 1968 | R | 1,299 | 1,971 | 4,354 | |
| 1964 | D | 2,365 | 1,545 | 3,915 | |
| 1960 | R | 1,725 | 1,978 | 3,738 | |
| 1956 | R | 1,215 | 2,501 | 3,726 | |
| 1952 | R | 1,445 | 2,964 | 4,413 | |
| 1948 | R | 1,252 | 1,260 | 2,865 | |
| 1944 | D | 1,316 | 619 | 3,184 | |
| 1940 | D | 1,404 | 1,400 | 2,807 | |
| 1936 | D | 1,635 | 290 | 1,929 | |
| 1932 | D | 2,806 | 142 | 2,955 | |
| 1928 | D | 2,129 | 466 | 2,597 | |
| 1924 | D | 2,601 | 457 | 3,627 | |
| 1920 | R | 538 | 568 | 2,890 | |
| 1916 | D | 960 | 673 | 1,643 | |
| 1912 | D | 1,161 | 244 | 1,496 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Austin County, west of Houston in the post-oak belt, has delivered lopsided Republican margins for decades, with 2024's R+62.7 result reflecting a predominantly white, small-town electorate with deep roots in ranching and German immigrant heritage.
The Republican margin in Austin County reached its widest at sixty-three points in 2024. The margin in 2024 was sixty-three points, in line with the county's deep historical pattern.
Austin County's loyalty is rooted in its place. Median household income of $75,789, a 67% non-Hispanic-white share, and a population of 31,170 together describe a community whose political habits are deeply settled. The county's voting pattern over the last decade is most similar to that of Carson County and Harper County.
