| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,487 | 2,557 | 4,084 | |
| 2020 | R | 1,533 | 2,438 | 4,010 | |
| 2016 | R | 1,275 | 2,081 | 3,513 | |
| 2012 | R | 1,784 | 1,790 | 3,632 | |
| 2008 | D | 1,914 | 1,464 | 3,432 | |
| 2004 | D | 1,956 | 1,884 | 3,879 | |
| 2000 | R | 1,620 | 1,734 | 3,507 | |
| 1996 | D | 1,725 | 1,260 | 3,531 | |
| 1992 | D | 1,762 | 1,273 | 3,891 | |
| 1988 | D | 2,090 | 1,599 | 3,715 | |
| 1984 | D | 1,967 | 1,667 | 3,653 | |
| 1980 | D | 1,941 | 1,811 | 4,021 | |
| 1976 | D | 2,399 | 1,340 | 3,800 | |
| 1972 | R | 1,648 | 1,723 | 3,451 | |
| 1968 | D | 1,913 | 1,137 | 3,315 | |
| 1964 | D | 2,514 | 963 | 3,480 | |
| 1960 | D | 2,873 | 1,290 | 4,170 | |
| 1956 | D | 2,226 | 1,930 | 4,176 | |
| 1952 | D | 2,662 | 1,733 | 4,416 | |
| 1948 | D | 2,665 | 1,281 | 4,209 | |
| 1944 | D | 2,894 | 1,345 | 4,268 | |
| 1940 | D | 3,525 | 1,672 | 5,269 | |
| 1936 | D | 3,319 | 902 | 4,341 | |
| 1932 | D | 2,338 | 891 | 3,523 | |
| 1928 | D | 1,724 | 1,274 | 3,132 | |
| 1924 | R | 84 | 1,058 | 2,634 | |
| 1920 | R | 268 | 1,714 | 2,206 | |
| 1916 | R | 475 | 672 | 1,230 | |
| 1912 | R | 347 | 473 | 1,183 | |
| 1908 | R | 314 | 1,134 | 1,534 | |
| 1904 | R | 246 | 1,250 | 1,541 | |
| 1900 | R | 356 | 1,318 | 1,716 | |
| 1896 | R | 472 | 1,288 | 1,788 | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Iron County's sparse population is anchored by logging and tourism along the Montreal River corridor, and its presidential margins have widened steadily rightward over the past three cycles, reaching R+26 in 2024.
The Republican margin in Iron County reached its widest at sixty-six points in 1920. The margin in 2024 was twenty-six points, in line with the county's deep historical pattern.
Iron County's loyalty is rooted in its place. Median household income of $60,625, a 93% non-Hispanic-white share, and a population of 6,210 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 Chippewa County and Ste. Genevieve County.
