| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,421 | 3,499 | 6,221 | |
| 2020 | R | 2,509 | 3,708 | 6,513 | |
| 2016 | R | 1,548 | 2,570 | 4,723 | |
| 2012 | R | 2,084 | 3,064 | 5,375 | |
| 2008 | R | 2,101 | 3,981 | 6,275 | |
| 2004 | R | 1,855 | 3,873 | 5,940 | |
| 2000 | R | 1,542 | 3,862 | 6,100 | |
| 1996 | R | 1,576 | 2,707 | 5,100 | |
| 1992 | R | 1,475 | 2,293 | 5,556 | |
| 1988 | R | 1,351 | 2,609 | 4,114 | |
| 1984 | R | 1,239 | 3,210 | 4,615 | |
| 1980 | R | 1,025 | 1,589 | 3,339 | |
| 1976 | R | 1,014 | 1,490 | 2,663 | |
| 1972 | R | 857 | 1,172 | 2,089 | |
| 1968 | R | 862 | 986 | 2,095 | |
| 1964 | D | 1,183 | 399 | 1,582 | |
| 1960 | D | 867 | 631 | 1,498 | |
| 1956 | — | — | — | — | |
| 1952 | — | — | — | — | |
| 1948 | — | — | — | — | |
| 1944 | — | — | — | — | |
| 1940 | — | — | — | — | |
| 1936 | — | — | — | — | |
| 1932 | — | — | — | — | |
| 1928 | — | — | — | — | |
| 1924 | — | — | — | — | |
| 1920 | — | — | — | — | |
| 1916 | — | — | — | — | |
| 1912 | — | — | — | — | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Kodiak Island Borough's economy revolves around one of the nation's largest fishing ports, and its small, dispersed population—spread across the island and roadless outer villages—has consistently leaned Republican in recent presidential cycles by double-digit margins.
The Republican margin in Kodiak Island Borough reached its widest at forty-three points in 1984. The margin in 2024 was seventeen points, in line with the county's deep historical pattern.
Kodiak Island Borough's loyalty is rooted in its place. Median household income of $86,250, a 49% non-Hispanic-white share, and a population of 12,771 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 Fairbanks North Star Borough and Wrangell City and Borough.