| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 920 | 1,661 | 2,649 | |
| 2020 | R | 945 | 1,418 | 2,454 | |
| 2016 | R | 838 | 1,210 | 2,359 | |
| 2012 | D | 1,343 | 1,009 | 2,425 | |
| 2008 | D | 1,371 | 998 | 2,433 | |
| 2004 | R | 1,199 | 1,352 | 2,602 | |
| 2000 | R | 1,080 | 1,488 | 2,719 | |
| 1996 | D | 1,199 | 920 | 2,435 | |
| 1992 | D | 1,166 | 1,102 | 2,903 | |
| 1988 | D | 1,459 | 1,362 | 2,858 | |
| 1984 | R | 1,222 | 1,706 | 2,973 | |
| 1980 | R | 974 | 1,883 | 3,142 | |
| 1976 | D | 1,715 | 1,696 | 3,456 | |
| 1972 | R | 1,355 | 2,056 | 3,435 | |
| 1968 | R | 1,286 | 1,943 | 3,383 | |
| 1964 | D | 2,063 | 1,647 | 3,717 | |
| 1960 | R | 1,806 | 2,324 | 4,131 | |
| 1956 | R | 1,808 | 2,361 | 4,174 | |
| 1952 | R | 1,265 | 3,051 | 4,347 | |
| 1948 | R | 1,595 | 1,772 | 3,485 | |
| 1944 | R | 1,639 | 2,044 | 3,712 | |
| 1940 | R | 1,986 | 2,579 | 4,589 | |
| 1936 | D | 2,385 | 1,303 | 4,298 | |
| 1932 | D | 3,025 | 1,445 | 4,563 | |
| 1928 | R | 1,505 | 2,613 | 4,145 | |
| 1924 | R | 303 | 1,862 | 4,084 | |
| 1920 | R | 802 | 3,010 | 3,894 | |
| 1916 | D | 1,121 | 1,093 | 2,286 | |
| 1912 | R | 490 | 495 | 1,586 | |
| 1908 | R | 581 | 1,308 | 1,937 | |
| 1904 | R | 253 | 1,257 | 1,578 | |
| 1900 | R | 499 | 924 | 1,472 | |
| 1896 | R | 579 | 766 | 1,356 | |
| 1892 | R | 0 | 566 | 1,145 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Ransom County's roughly 5,900 residents are spread across southeastern North Dakota's Sheyenne River valley, where farming communities have backed Republican presidential candidates by wide margins in recent cycles.
The county's recent history is a story of close margins. The Democratic margin reached thirty-five points in 1932; the Republican margin reached sixty-four points in 1904. Most other elections have been decided by single-digit points.
Ransom County's demographics — a population of 5,643, a 92% non-Hispanic-white share, a median household income of $75,736 — situate the county close to national averages on several dimensions. The county's voting pattern over the last decade is most similar to that of Sargent County and Bremer County.
