| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 954 | 2,308 | 3,316 | |
| 2020 | R | 1,182 | 2,433 | 3,696 | |
| 2016 | R | 1,092 | 1,892 | 3,300 | |
| 2012 | R | 1,310 | 1,592 | 2,986 | |
| 2008 | R | 1,165 | 1,712 | 2,913 | |
| 2004 | R | 1,146 | 1,899 | 3,067 | |
| 2000 | R | 1,216 | 1,619 | 2,960 | |
| 1996 | D | 1,755 | 1,159 | 3,393 | |
| 1992 | D | 1,695 | 1,451 | 3,993 | |
| 1988 | D | 1,733 | 1,526 | 3,302 | |
| 1984 | D | 1,963 | 1,801 | 3,785 | |
| 1980 | D | 2,043 | 1,537 | 3,782 | |
| 1976 | D | 2,601 | 1,532 | 4,247 | |
| 1972 | D | 2,013 | 1,758 | 3,858 | |
| 1968 | D | 2,434 | 1,026 | 3,751 | |
| 1964 | D | 3,147 | 1,132 | 4,279 | |
| 1960 | D | 3,069 | 1,313 | 4,386 | |
| 1956 | D | 2,711 | 1,784 | 4,495 | |
| 1952 | D | 3,019 | 1,377 | 4,396 | |
| 1948 | D | 2,069 | 680 | 2,961 | |
| 1944 | D | 1,956 | 739 | 2,704 | |
| 1940 | D | 2,175 | 619 | 2,803 | |
| 1936 | D | 1,526 | 218 | 1,771 | |
| 1932 | D | 1,558 | 377 | 1,954 | |
| 1928 | D | 935 | 685 | 1,628 | |
| 1924 | D | 768 | 404 | 1,348 | |
| 1920 | D | 1,131 | 905 | 2,036 | |
| 1916 | D | 1,492 | 672 | 2,234 | |
| 1912 | D | 652 | 109 | 1,174 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Greenlee County, anchored by the copper-mining town of Clifton, delivers some of Arizona's widest presidential margins — its small, resource-economy electorate has voted Republican by double digits in every cycle since 2000.
The unraveling was not abrupt. The Democratic margin in Greenlee County peaked at seventy-four points in 1936; it narrowed steadily over the late twentieth century. The 2000 election delivered the county to the Republican party for the first time in many years, by a margin of fourteen points. By 2024, the margin had widened further.
The economic and demographic context is severe. Greenlee County's median household income of $71,164 is among the lowest of any county in the United States; 8% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Bent County and Lanier County.