| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 3,524 | 6,741 | 10,446 | |
| 2020 | R | 3,607 | 6,258 | 10,025 | |
| 2016 | R | 3,134 | 5,516 | 9,231 | |
| 2012 | R | 4,412 | 4,533 | 9,142 | |
| 2008 | D | 4,595 | 4,589 | 9,410 | |
| 2004 | R | 4,539 | 4,768 | 9,452 | |
| 2000 | D | 3,830 | 3,755 | 8,260 | |
| 1996 | D | 3,810 | 2,327 | 7,404 | |
| 1992 | D | 3,400 | 2,151 | 7,559 | |
| 1988 | D | 3,863 | 3,011 | 6,942 | |
| 1984 | D | 3,943 | 3,422 | 7,416 | |
| 1980 | D | 3,677 | 3,396 | 7,670 | |
| 1976 | D | 4,308 | 2,476 | 6,949 | |
| 1972 | R | 2,687 | 3,241 | 6,032 | |
| 1968 | D | 3,094 | 2,254 | 5,657 | |
| 1964 | D | 3,874 | 2,000 | 5,890 | |
| 1960 | R | 2,980 | 3,097 | 6,113 | |
| 1956 | R | 2,733 | 2,762 | 5,504 | |
| 1952 | R | 2,577 | 3,384 | 6,050 | |
| 1948 | D | 3,277 | 2,466 | 6,007 | |
| 1944 | D | 2,743 | 2,720 | 5,509 | |
| 1940 | R | 3,610 | 3,744 | 7,470 | |
| 1936 | D | 3,806 | 2,466 | 6,611 | |
| 1932 | D | 2,945 | 2,341 | 5,743 | |
| 1928 | R | 1,428 | 3,951 | 5,636 | |
| 1924 | R | 212 | 2,720 | 5,068 | |
| 1920 | R | 613 | 2,933 | 4,181 | |
| 1916 | R | 877 | 1,122 | 2,427 | |
| 1912 | D | 413 | 362 | 2,083 | |
| 1908 | R | 389 | 1,205 | 1,798 | |
| 1904 | R | 191 | 1,327 | 1,639 | |
| 1900 | R | 262 | 988 | 1,278 | |
| 1896 | R | 344 | 855 | 1,231 | |
| 1892 | D | 445 | 217 | 711 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Aitkin's economy revolves around tourism, timber, and seasonal residents, and its predominantly white, non-college electorate has shifted the presidential margin from competitive to R+30 territory since the early 2000s.
The Republican margin in Aitkin County reached its widest at sixty-nine points in 1904. The margin in 2024 was thirty-one points, in line with the county's deep historical pattern.
Aitkin County's loyalty is rooted in its place. Median household income of $60,833, a 93% non-Hispanic-white share, and a population of 16,056 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 Pine County and Jefferson County.
