| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 577 | 2,037 | 2,681 | |
| 2020 | R | 591 | 1,941 | 2,586 | |
| 2016 | R | 415 | 1,556 | 2,183 | |
| 2012 | R | 577 | 1,413 | 2,060 | |
| 2008 | R | 728 | 1,517 | 2,320 | |
| 2004 | R | 555 | 1,468 | 2,063 | |
| 2000 | R | 336 | 1,476 | 1,909 | |
| 1996 | R | 537 | 1,053 | 1,949 | |
| 1992 | R | 457 | 754 | 1,937 | |
| 1988 | R | 643 | 1,107 | 1,799 | |
| 1984 | R | 540 | 1,381 | 1,956 | |
| 1980 | R | 590 | 1,189 | 1,897 | |
| 1976 | R | 639 | 809 | 1,478 | |
| 1972 | R | 293 | 963 | 1,421 | |
| 1968 | R | 360 | 844 | 1,431 | |
| 1964 | D | 750 | 689 | 1,439 | |
| 1960 | R | 724 | 799 | 1,523 | |
| 1956 | R | 542 | 842 | 1,384 | |
| 1952 | R | 517 | 933 | 1,452 | |
| 1948 | D | 647 | 603 | 1,274 | |
| 1944 | D | 721 | 642 | 1,364 | |
| 1940 | D | 929 | 779 | 1,711 | |
| 1936 | D | 770 | 434 | 1,296 | |
| 1932 | D | 854 | 325 | 1,249 | |
| 1928 | R | 374 | 521 | 905 | |
| 1924 | R | 208 | 422 | 999 | |
| 1920 | R | 390 | 682 | 1,072 | |
| 1916 | R | 645 | 667 | 1,444 | |
| 1912 | R | 417 | 598 | 1,502 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Adams County's sparse mountain terrain anchors a voter base that delivered a 54-point Republican presidential margin in 2024, among the widest in a state already tilted heavily in that direction.
The Democratic margin in Adams County peaked at forty-two points in 1932. By 1968 the county had flipped, voting Republican for the first time in many years. The 2024 margin was fifty-four points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Adams County's median household income of $61,808 sits well below state and national norms, and 18% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country. The county's voting pattern over the last decade is most similar to that of Meagher County and Judith Basin County.