| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 5,683 | 21,571 | 27,878 | |
| 2020 | R | 4,892 | 18,989 | 25,104 | |
| 2016 | R | 2,450 | 11,561 | 17,831 | |
| 2012 | R | 2,148 | 14,200 | 16,811 | |
| 2008 | R | 3,258 | 12,518 | 16,450 | |
| 2004 | R | 2,267 | 12,815 | 15,446 | |
| 2000 | R | 1,789 | 10,106 | 12,594 | |
| 1996 | R | 1,887 | 6,550 | 9,391 | |
| 1992 | R | 1,537 | 5,616 | 9,378 | |
| 1988 | R | 1,736 | 6,038 | 7,868 | |
| 1984 | R | 1,342 | 6,856 | 8,251 | |
| 1980 | R | 1,242 | 6,207 | 7,804 | |
| 1976 | R | 1,700 | 4,757 | 6,833 | |
| 1972 | R | 1,098 | 5,085 | 6,648 | |
| 1968 | R | 1,157 | 3,337 | 5,011 | |
| 1964 | R | 2,053 | 2,522 | 4,575 | |
| 1960 | R | 1,738 | 3,079 | 4,818 | |
| 1956 | R | 1,311 | 3,321 | 4,632 | |
| 1952 | R | 1,596 | 3,175 | 4,771 | |
| 1948 | R | 1,596 | 2,289 | 3,911 | |
| 1944 | R | 1,677 | 1,930 | 3,621 | |
| 1940 | R | 1,915 | 2,060 | 3,998 | |
| 1936 | D | 1,844 | 1,396 | 3,289 | |
| 1932 | R | 1,358 | 1,599 | 3,163 | |
| 1928 | R | 682 | 1,823 | 2,528 | |
| 1924 | R | 485 | 1,429 | 2,150 | |
| 1920 | R | 561 | 1,399 | 2,010 | |
| 1916 | D | 1,156 | 825 | 2,061 | |
| 1912 | R | 544 | 695 | 1,398 | |
| 1908 | R | 488 | 712 | 1,276 | |
| 1904 | R | 442 | 741 | 1,262 | |
| 1900 | D | 708 | 628 | 1,338 | |
| 1896 | D | 806 | 205 | 1,011 | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Iron County, anchored by Cedar City and Southern Utah University, posts presidential margins above 55 points Republican — an outlier even within a state that already leans heavily red in rural areas.
The Republican margin in Iron County reached its widest at seventy-two points in 2012. The margin in 2024 was fifty-seven points, in line with the county's deep historical pattern.
Iron County's loyalty is rooted in its place. Median household income of $66,247, a 87% non-Hispanic-white share, and a population of 62,252 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 Garfield County and Washington County.
