| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 27,680 | 74,756 | 103,491 | |
| 2020 | R | 24,826 | 62,740 | 88,892 | |
| 2016 | R | 14,238 | 45,136 | 62,178 | |
| 2012 | R | 11,450 | 39,318 | 51,529 | |
| 2008 | R | 12,384 | 35,233 | 48,158 | |
| 2004 | R | 9,153 | 31,574 | 41,043 | |
| 2000 | R | 7,131 | 24,599 | 32,748 | |
| 1996 | R | 7,132 | 16,763 | 26,057 | |
| 1992 | R | 6,312 | 12,651 | 24,941 | |
| 1988 | R | 5,716 | 13,994 | 19,980 | |
| 1984 | R | 4,179 | 13,452 | 17,683 | |
| 1980 | R | 3,554 | 9,758 | 13,714 | |
| 1976 | R | 4,068 | 6,377 | 10,554 | |
| 1972 | R | 1,823 | 6,761 | 8,628 | |
| 1968 | R | 2,338 | 3,646 | 6,710 | |
| 1964 | D | 3,644 | 2,223 | 5,875 | |
| 1960 | R | 1,845 | 3,082 | 4,941 | |
| 1956 | R | 1,140 | 3,397 | 4,557 | |
| 1952 | R | 1,252 | 3,350 | 4,606 | |
| 1948 | R | 1,212 | 1,752 | 3,074 | |
| 1944 | R | 787 | 2,021 | 2,989 | |
| 1940 | R | 851 | 1,852 | 2,706 | |
| 1936 | D | 1,611 | 554 | 2,171 | |
| 1932 | D | 2,211 | 176 | 2,402 | |
| 1928 | D | 1,893 | 508 | 2,403 | |
| 1924 | D | 330 | 312 | 2,465 | |
| 1920 | R | 181 | 765 | 1,820 | |
| 1916 | R | 432 | 743 | 1,213 | |
| 1912 | D | 602 | 157 | 965 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Comal County, anchored by New Braunfels north of San Antonio, has absorbed rapid population growth from the metro's sprawl while maintaining some of the widest Republican presidential margins in the state, hitting R+45.5 in 2024.
The Republican margin in Comal County reached its widest at fifty-seven points in 1972. The margin in 2024 was forty-five points, in line with the county's deep historical pattern.
Comal County's loyalty is rooted in its place. Median household income of $101,889, a 71% non-Hispanic-white share, and a population of 183,826 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 Kendall County and Randall County.
