| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 6,355 | 22,668 | 29,438 | |
| 2020 | R | 6,020 | 20,083 | 26,516 | |
| 2016 | R | 3,643 | 15,700 | 20,283 | |
| 2012 | R | 3,043 | 14,508 | 17,783 | |
| 2008 | R | 3,599 | 12,971 | 16,746 | |
| 2004 | R | 2,532 | 11,434 | 14,072 | |
| 2000 | R | 1,901 | 8,788 | 11,073 | |
| 1996 | R | 2,092 | 5,940 | 8,781 | |
| 1992 | R | 1,374 | 4,162 | 7,354 | |
| 1988 | R | 1,446 | 4,875 | 6,398 | |
| 1984 | R | 938 | 4,568 | 5,522 | |
| 1980 | R | 1,075 | 3,890 | 5,086 | |
| 1976 | R | 1,190 | 2,543 | 3,793 | |
| 1972 | R | 484 | 2,681 | 3,183 | |
| 1968 | R | 538 | 1,569 | 2,471 | |
| 1964 | R | 970 | 1,200 | 2,173 | |
| 1960 | R | 549 | 1,544 | 2,100 | |
| 1956 | R | 341 | 1,519 | 1,873 | |
| 1952 | R | 370 | 1,786 | 2,164 | |
| 1948 | R | 511 | 1,207 | 1,789 | |
| 1944 | R | 309 | 1,337 | 1,762 | |
| 1940 | R | 421 | 1,321 | 1,744 | |
| 1936 | R | 405 | 693 | 1,104 | |
| 1932 | D | 1,185 | 416 | 1,609 | |
| 1928 | R | 377 | 663 | 1,042 | |
| 1924 | R | 136 | 689 | 1,232 | |
| 1920 | R | 142 | 846 | 1,159 | |
| 1916 | R | 232 | 590 | 831 | |
| 1912 | D | 200 | 119 | 505 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Kendall County, anchored by Boerne in the San Antonio exurbs, has delivered Republican presidential margins above 50 points in recent cycles, reflecting its fast-growing, affluent, and predominantly white suburban-rural electorate.
The Republican margin in Kendall County reached its widest at sixty-nine points in 1972. The margin in 2024 was fifty-five points, in line with the county's deep historical pattern.
Kendall County's loyalty is rooted in its place. Median household income of $114,962, a 75% non-Hispanic-white share, and a population of 48,567 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 Randall County and Kerr County.
