| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 8,596 | 31,993 | 40,987 | |
| 2020 | R | 8,654 | 31,466 | 40,543 | |
| 2016 | R | 7,376 | 27,379 | 36,073 | |
| 2012 | R | 9,436 | 23,984 | 34,078 | |
| 2008 | R | 12,878 | 21,686 | 35,168 | |
| 2004 | R | 12,842 | 23,802 | 36,778 | |
| 2000 | R | 12,028 | 20,218 | 32,985 | |
| 1996 | R | 12,719 | 14,735 | 31,591 | |
| 1992 | R | 12,493 | 13,858 | 32,759 | |
| 1988 | R | 13,815 | 16,809 | 30,768 | |
| 1984 | R | 13,900 | 19,502 | 33,491 | |
| 1980 | R | 11,695 | 17,729 | 30,455 | |
| 1976 | R | 13,452 | 15,960 | 29,685 | |
| 1972 | R | 8,743 | 19,739 | 28,841 | |
| 1968 | R | 11,515 | 17,511 | 30,921 | |
| 1964 | D | 17,934 | 14,817 | 32,814 | |
| 1960 | R | 14,739 | 20,554 | 35,335 | |
| 1956 | R | 13,163 | 20,568 | 33,748 | |
| 1952 | R | 13,167 | 18,589 | 31,820 | |
| 1948 | R | 8,727 | 13,910 | 22,978 | |
| 1944 | R | 10,287 | 16,039 | 26,405 | |
| 1940 | R | 14,085 | 17,369 | 31,512 | |
| 1936 | R | 16,184 | 17,375 | 33,741 | |
| 1932 | R | 7,919 | 11,857 | 20,249 | |
| 1928 | R | 4,489 | 16,404 | 21,057 | |
| 1924 | R | 2,315 | 12,389 | 17,032 | |
| 1920 | R | 2,912 | 12,436 | 16,404 | |
| 1916 | R | 2,957 | 6,008 | 9,800 | |
| 1912 | D | 2,164 | 1,428 | 9,588 | |
| 1908 | R | 2,246 | 6,478 | 9,495 | |
| 1904 | R | 1,686 | 6,772 | 9,358 | |
| 1900 | R | 2,151 | 6,677 | 9,109 | |
| 1896 | R | 2,295 | 5,861 | 8,319 | |
| 1892 | R | 2,262 | 4,670 | 7,185 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Somerset County's R+57.2 margin in 2024 places it among the most lopsided presidential results in the state, reflecting a rural, post-coal economy where Democratic vote share has eroded sharply over two decades.
The Democratic margin in Somerset County peaked at nine points in 1964. By 1968 the county had flipped, voting Republican for the first time in many years. The 2024 margin was fifty-seven points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Somerset County's median household income of $61,446 sits well below state and national norms, and 11% 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 Holt County and Burke County.
