| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,314 | 2,600 | 3,996 | |
| 2020 | R | 1,446 | 2,528 | 4,040 | |
| 2016 | R | 1,305 | 2,293 | 3,860 | |
| 2012 | D | 1,974 | 1,938 | 3,984 | |
| 2008 | D | 2,160 | 1,912 | 4,192 | |
| 2004 | D | 2,390 | 2,093 | 4,541 | |
| 2000 | D | 2,244 | 1,941 | 4,453 | |
| 1996 | D | 2,420 | 1,447 | 4,465 | |
| 1992 | D | 2,342 | 1,435 | 4,968 | |
| 1988 | D | 2,805 | 2,116 | 4,983 | |
| 1984 | R | 2,685 | 2,731 | 5,497 | |
| 1980 | R | 2,457 | 2,981 | 5,903 | |
| 1976 | D | 3,647 | 2,292 | 6,065 | |
| 1972 | D | 2,845 | 2,773 | 5,726 | |
| 1968 | D | 2,937 | 2,672 | 5,828 | |
| 1964 | D | 3,934 | 2,236 | 6,180 | |
| 1960 | D | 3,253 | 3,185 | 6,449 | |
| 1956 | R | 2,826 | 3,276 | 6,108 | |
| 1952 | R | 2,753 | 3,924 | 6,705 | |
| 1948 | D | 3,690 | 2,330 | 6,100 | |
| 1944 | R | 2,779 | 3,104 | 5,900 | |
| 1940 | R | 3,106 | 3,789 | 6,923 | |
| 1936 | D | 3,243 | 2,066 | 5,996 | |
| 1932 | D | 3,992 | 1,911 | 6,000 | |
| 1928 | R | 2,245 | 3,406 | 5,710 | |
| 1924 | R | 106 | 2,860 | 5,473 | |
| 1920 | R | 653 | 4,219 | 5,127 | |
| 1916 | R | 1,047 | 1,614 | 2,867 | |
| 1912 | D | 608 | 343 | 2,538 | |
| 1908 | R | 661 | 1,894 | 2,738 | |
| 1904 | R | 243 | 1,886 | 2,265 | |
| 1900 | R | 642 | 1,924 | 2,692 | |
| 1896 | R | 932 | 1,620 | 2,641 | |
| 1892 | D | 1,164 | 457 | 2,225 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Lac qui Parle sits along the South Dakota border in Minnesota's agricultural southwest, where a shrinking population and deep-rooted farming heritage have pushed presidential margins steadily rightward over the past two decades, reaching R+32.2 in 2024.
The Republican margin in Lac qui Parle County reached its widest at seventy-three points in 1904. The margin in 2024 was thirty-two points, in line with the county's deep historical pattern.
Lac qui Parle County's loyalty is rooted in its place. Median household income of $74,432, a 93% non-Hispanic-white share, and a population of 6,682 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 Big Stone County and Belmont County.
