| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 666 | 1,694 | 2,423 | |
| 2020 | R | 673 | 1,750 | 2,490 | |
| 2016 | R | 571 | 1,565 | 2,288 | |
| 2012 | R | 824 | 1,499 | 2,379 | |
| 2008 | R | 965 | 1,407 | 2,439 | |
| 2004 | R | 1,040 | 1,544 | 2,629 | |
| 2000 | D | 1,268 | 818 | 2,167 | |
| 1996 | D | 1,091 | 981 | 2,404 | |
| 1992 | D | 1,060 | 908 | 2,676 | |
| 1988 | D | 991 | 971 | 1,974 | |
| 1984 | R | 961 | 1,578 | 2,556 | |
| 1980 | R | 925 | 1,674 | 2,800 | |
| 1976 | D | 1,534 | 1,175 | 2,723 | |
| 1972 | D | 1,665 | 1,421 | 3,097 | |
| 1968 | D | 1,425 | 1,237 | 2,815 | |
| 1964 | D | 2,205 | 968 | 3,173 | |
| 1960 | D | 1,600 | 1,403 | 3,003 | |
| 1956 | D | 1,894 | 1,317 | 3,211 | |
| 1952 | R | 1,392 | 1,578 | 2,970 | |
| 1948 | D | 1,646 | 1,056 | 2,744 | |
| 1944 | D | 1,412 | 1,002 | 2,414 | |
| 1940 | D | 1,835 | 1,352 | 3,187 | |
| 1936 | D | 2,274 | 982 | 3,317 | |
| 1932 | D | 2,465 | 797 | 3,315 | |
| 1928 | D | 1,599 | 1,431 | 3,080 | |
| 1924 | R | 650 | 1,060 | 2,856 | |
| 1920 | R | 671 | 1,036 | 2,030 | |
| 1916 | R | 729 | 975 | 1,750 | |
| 1912 | D | 842 | 0 | 1,570 | |
| 1908 | D | 823 | 753 | 1,609 | |
| 1904 | R | 608 | 693 | 1,343 | |
| 1900 | D | 716 | 644 | 1,366 | |
| 1896 | D | 668 | 441 | 1,114 | |
| 1892 | R | 200 | 538 | 1,222 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Brule County sits along the Missouri River in central South Dakota, where a sparse, agriculture-driven population has delivered Republican presidential margins exceeding 40 points in recent cycles, consistent with broader trends across the state's rural interior.
The Republican margin in Brule County reached its widest at forty-three points in 2016. The margin in 2024 was forty-two points, in line with the county's deep historical pattern.
Brule County's loyalty is rooted in its place. Median household income of $73,720, a 82% non-Hispanic-white share, and a population of 5,283 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 Alleghany County and Edmunds County.
