| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 6,315 | 21,615 | 28,170 | |
| 2020 | R | 6,524 | 20,879 | 27,745 | |
| 2016 | R | 4,681 | 17,727 | 23,297 | |
| 2012 | R | 4,338 | 17,274 | 21,879 | |
| 2008 | R | 5,570 | 16,752 | 22,556 | |
| 2004 | R | 4,557 | 16,538 | 21,246 | |
| 2000 | R | 4,002 | 14,637 | 19,228 | |
| 1996 | R | 4,192 | 11,173 | 16,775 | |
| 1992 | R | 3,707 | 8,787 | 16,358 | |
| 1988 | R | 3,587 | 11,207 | 14,937 | |
| 1984 | R | 3,102 | 11,829 | 14,974 | |
| 1980 | R | 3,387 | 9,090 | 12,855 | |
| 1976 | R | 3,767 | 6,021 | 9,978 | |
| 1972 | R | 1,511 | 6,039 | 7,760 | |
| 1968 | R | 1,878 | 3,692 | 6,643 | |
| 1964 | D | 2,894 | 2,706 | 5,608 | |
| 1960 | R | 1,323 | 3,252 | 4,596 | |
| 1956 | R | 1,025 | 3,555 | 4,594 | |
| 1952 | R | 1,337 | 3,683 | 5,029 | |
| 1948 | R | 1,505 | 1,520 | 3,204 | |
| 1944 | D | 1,377 | 1,358 | 2,943 | |
| 1940 | D | 1,634 | 1,112 | 2,756 | |
| 1936 | D | 1,586 | 994 | 2,589 | |
| 1932 | D | 2,165 | 623 | 2,804 | |
| 1928 | R | 570 | 1,575 | 2,147 | |
| 1924 | R | 735 | 892 | 1,809 | |
| 1920 | D | 612 | 464 | 1,149 | |
| 1916 | D | 621 | 272 | 927 | |
| 1912 | D | 577 | 126 | 892 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Kerr County's rugged Hill Country terrain and retirement-destination growth have reinforced a Republican lean that has deepened every presidential cycle, with the 2024 margin of R+54.3 ranking among the widest in the Texas midsize-county tier.
The Republican margin in Kerr County reached its widest at fifty-nine points in 2012. The margin in 2024 was fifty-four points, in line with the county's deep historical pattern.
Kerr County's loyalty is rooted in its place. Median household income of $69,395, a 74% non-Hispanic-white share, and a population of 53,489 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 Gillespie County and Kendall County.
