| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 528 | 1,717 | 2,298 | |
| 2020 | R | 609 | 1,699 | 2,350 | |
| 2016 | R | 570 | 1,366 | 2,080 | |
| 2012 | R | 941 | 1,175 | 2,171 | |
| 2008 | R | 1,054 | 1,088 | 2,218 | |
| 2004 | R | 961 | 1,406 | 2,412 | |
| 2000 | D | 1,245 | 926 | 2,224 | |
| 1996 | D | 1,090 | 955 | 2,349 | |
| 1992 | D | 880 | 778 | 2,423 | |
| 1988 | R | 1,246 | 1,251 | 2,528 | |
| 1984 | R | 941 | 1,537 | 2,490 | |
| 1980 | R | 891 | 1,657 | 2,744 | |
| 1976 | D | 1,465 | 1,177 | 2,652 | |
| 1972 | D | 1,370 | 1,357 | 2,736 | |
| 1968 | R | 1,076 | 1,398 | 2,625 | |
| 1964 | D | 1,524 | 1,317 | 2,841 | |
| 1960 | R | 1,173 | 1,907 | 3,080 | |
| 1956 | R | 1,363 | 1,698 | 3,061 | |
| 1952 | R | 879 | 2,279 | 3,158 | |
| 1948 | R | 1,324 | 1,357 | 2,719 | |
| 1944 | R | 1,180 | 1,910 | 3,090 | |
| 1940 | R | 1,166 | 2,304 | 3,470 | |
| 1936 | R | 1,440 | 1,595 | 3,153 | |
| 1932 | D | 1,658 | 1,131 | 2,812 | |
| 1928 | R | 999 | 1,869 | 2,902 | |
| 1924 | R | 168 | 1,362 | 2,258 | |
| 1920 | R | 159 | 1,569 | 2,243 | |
| 1916 | D | 908 | 584 | 1,530 | |
| 1912 | D | 441 | 0 | 1,415 | |
| 1908 | R | 425 | 1,022 | 1,578 | |
| 1904 | R | 279 | 1,348 | 1,678 | |
| 1900 | R | 604 | 1,052 | 1,676 | |
| 1896 | R | 668 | 698 | 1,370 | |
| 1892 | R | 126 | 441 | 1,007 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Deuel County sits along the Minnesota border in South Dakota's glaciated lake country, where a sparse, agriculture-dependent population has delivered some of the state's most lopsided presidential margins across recent election cycles.
The Republican margin in Deuel County reached its widest at sixty-four points in 1904. The margin in 2024 was fifty-two points, in line with the county's deep historical pattern.
Deuel County's loyalty is rooted in its place. Median household income of $83,112, a 95% non-Hispanic-white share, and a population of 4,328 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 Jerauld County and Kingsbury County.
