| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 10,467 | 15,863 | 26,840 | |
| 2020 | R | 10,786 | 15,239 | 26,561 | |
| 2016 | R | 9,015 | 12,920 | 23,880 | |
| 2012 | D | 12,852 | 10,501 | 23,919 | |
| 2008 | D | 13,460 | 10,309 | 24,395 | |
| 2004 | D | 13,290 | 10,705 | 24,367 | |
| 2000 | D | 10,583 | 9,545 | 21,714 | |
| 1996 | D | 10,706 | 6,506 | 20,473 | |
| 1992 | D | 9,621 | 5,952 | 20,838 | |
| 1988 | D | 10,517 | 8,358 | 19,053 | |
| 1984 | D | 11,455 | 9,306 | 20,948 | |
| 1980 | D | 12,134 | 8,368 | 22,228 | |
| 1976 | D | 12,979 | 6,646 | 20,281 | |
| 1972 | D | 8,683 | 7,558 | 16,583 | |
| 1968 | D | 10,512 | 4,898 | 16,206 | |
| 1964 | D | 12,054 | 4,137 | 16,231 | |
| 1960 | D | 10,761 | 6,615 | 17,408 | |
| 1956 | D | 8,737 | 6,408 | 15,178 | |
| 1952 | D | 9,128 | 6,573 | 15,782 | |
| 1948 | D | 9,653 | 4,334 | 14,716 | |
| 1944 | D | 8,787 | 4,227 | 13,095 | |
| 1940 | D | 9,899 | 5,196 | 15,254 | |
| 1936 | D | 8,896 | 3,594 | 12,819 | |
| 1932 | D | 5,616 | 3,782 | 10,237 | |
| 1928 | R | 3,122 | 5,103 | 8,656 | |
| 1924 | R | 496 | 4,961 | 8,255 | |
| 1920 | R | 1,930 | 3,973 | 6,813 | |
| 1916 | D | 1,504 | 1,163 | 3,153 | |
| 1912 | D | 699 | 446 | 2,689 | |
| 1908 | R | 684 | 1,883 | 2,982 | |
| 1904 | R | 293 | 1,796 | 2,332 | |
| 1900 | R | 413 | 770 | 1,216 | |
| 1896 | R | 724 | 826 | 1,561 | |
| 1892 | R | 520 | 686 | 1,279 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Once reliably Democratic on the strength of mining and timber union households, Itasca County has shifted more than 30 points toward Republican presidential candidates over the past four election cycles, mirroring broader realignment across Minnesota's Iron Range.
The county's recent history is a story of close margins. The Democratic margin reached forty-nine points in 1964; the Republican margin reached sixty-four points in 1904. Most other elections have been decided by single-digit points.
Itasca County's demographics — a population of 45,275, a 89% non-Hispanic-white share, a median household income of $68,603 — situate the county close to national averages on several dimensions. The county's voting pattern over the last decade is most similar to that of Freeborn County and Swift County.
