| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 135 | 301 | 467 | |
| 2020 | R | 202 | 355 | 583 | |
| 2016 | R | 141 | 240 | 440 | |
| 2012 | R | 236 | 296 | 555 | |
| 2008 | R | 203 | 446 | 672 | |
| 2004 | R | 129 | 411 | 551 | |
| 2000 | R | 117 | 451 | 619 | |
| 1996 | R | 239 | 251 | 538 | |
| 1992 | R | 165 | 299 | 594 | |
| 1988 | R | 152 | 322 | 487 | |
| 1984 | R | 121 | 367 | 506 | |
| 1980 | R | 140 | 206 | 437 | |
| 1976 | R | 106 | 199 | 311 | |
| 1972 | R | 86 | 181 | 277 | |
| 1968 | R | 120 | 160 | 316 | |
| 1964 | D | 281 | 61 | 342 | |
| 1960 | D | 169 | 72 | 240 | |
| 1956 | — | — | — | — | |
| 1952 | — | — | — | — | |
| 1948 | — | — | — | — | |
| 1944 | — | — | — | — | |
| 1940 | — | — | — | — | |
| 1936 | — | — | — | — | |
| 1932 | — | — | — | — | |
| 1928 | — | — | — | — | |
| 1924 | — | — | — | — | |
| 1920 | — | — | — | — | |
| 1916 | — | — | — | — | |
| 1912 | — | — | — | — | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Despite a population dominated by Alaska Native and Filipino cannery workers, Aleutians East has shifted toward wide Republican margins in recent cycles, reflecting broader rural Alaska trends that cut across its unusually diverse demographic mix.
The Democratic margin in Aleutians East Borough peaked at sixty-four points in 1964. By 1968 the county had flipped, voting Republican for the first time in many years. The 2024 margin was thirty-six points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Aleutians East Borough's median household income of $65,365 sits well below state and national norms, and 13% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country. The county's voting pattern over the last decade is most similar to that of Yakima County and Chugach Census Area.