| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,441 | 4,501 | 7,033 | |
| 2020 | R | 2,493 | 4,216 | 6,789 | |
| 2016 | R | 2,004 | 3,675 | 5,960 | |
| 2012 | R | 2,687 | 3,224 | 6,012 | |
| 2008 | D | 3,080 | 2,947 | 6,162 | |
| 2004 | R | 3,215 | 3,224 | 6,511 | |
| 2000 | D | 3,014 | 2,967 | 6,188 | |
| 1996 | D | 3,232 | 2,014 | 6,059 | |
| 1992 | D | 3,648 | 1,971 | 7,000 | |
| 1988 | D | 3,774 | 2,866 | 6,674 | |
| 1984 | D | 3,559 | 3,468 | 7,056 | |
| 1980 | D | 3,742 | 3,507 | 7,732 | |
| 1976 | D | 4,401 | 3,224 | 7,718 | |
| 1972 | R | 3,512 | 3,630 | 7,376 | |
| 1968 | D | 4,130 | 3,292 | 7,772 | |
| 1964 | D | 6,011 | 2,399 | 8,423 | |
| 1960 | D | 5,232 | 3,919 | 9,165 | |
| 1956 | R | 4,490 | 4,955 | 9,458 | |
| 1952 | D | 4,597 | 4,564 | 9,216 | |
| 1948 | D | 4,125 | 3,659 | 8,212 | |
| 1944 | D | 4,537 | 3,945 | 8,546 | |
| 1940 | D | 4,808 | 4,766 | 9,661 | |
| 1936 | D | 5,216 | 3,834 | 9,130 | |
| 1932 | R | 3,416 | 4,347 | 8,116 | |
| 1928 | R | 2,262 | 4,103 | 6,415 | |
| 1924 | R | 247 | 2,802 | 4,307 | |
| 1920 | R | 497 | 3,515 | 4,245 | |
| 1916 | R | 877 | 2,139 | 3,167 | |
| 1912 | R | 218 | 1,031 | 2,279 | |
| 1908 | R | 260 | 2,055 | 2,400 | |
| 1904 | R | 139 | 1,620 | 1,790 | |
| 1900 | R | 257 | 1,561 | 1,839 | |
| 1896 | R | 236 | 1,048 | 1,315 | |
| 1892 | R | 587 | 918 | 1,549 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Iron County sits in Michigan's sparsely populated Upper Peninsula, where the logging and mining economy that once drew immigrant labor has given way to an aging, rural electorate that has shifted decisively rightward over the past four presidential elections.
The Republican margin in Iron County reached its widest at eighty-three points in 1904. The margin in 2024 was twenty-nine points, in line with the county's deep historical pattern.
Iron County's loyalty is rooted in its place. Median household income of $55,940, a 91% non-Hispanic-white share, and a population of 11,667 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 Braxton County and Brooke County.