| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,473 | 5,576 | 8,261 | |
| 2020 | R | 2,510 | 5,072 | 7,812 | |
| 2016 | R | 2,064 | 4,767 | 7,592 | |
| 2012 | R | 3,198 | 4,229 | 7,613 | |
| 2008 | R | 3,513 | 3,900 | 7,563 | |
| 2004 | R | 2,821 | 5,264 | 8,215 | |
| 2000 | R | 2,490 | 4,999 | 8,015 | |
| 1996 | R | 2,890 | 3,345 | 7,069 | |
| 1992 | R | 2,688 | 3,873 | 8,301 | |
| 1988 | R | 3,523 | 4,670 | 8,274 | |
| 1984 | R | 3,047 | 5,980 | 9,133 | |
| 1980 | R | 2,698 | 5,711 | 9,337 | |
| 1976 | R | 4,592 | 4,991 | 9,785 | |
| 1972 | R | 3,367 | 5,194 | 8,624 | |
| 1968 | R | 3,098 | 4,224 | 7,767 | |
| 1964 | D | 4,525 | 3,425 | 7,955 | |
| 1960 | R | 4,003 | 4,711 | 8,718 | |
| 1956 | R | 3,171 | 4,971 | 8,154 | |
| 1952 | R | 2,541 | 6,022 | 8,630 | |
| 1948 | R | 3,413 | 3,448 | 7,075 | |
| 1944 | R | 3,192 | 4,402 | 7,624 | |
| 1940 | R | 3,584 | 5,102 | 8,734 | |
| 1936 | D | 3,792 | 2,386 | 7,596 | |
| 1932 | D | 5,663 | 2,304 | 8,183 | |
| 1928 | R | 3,604 | 4,251 | 7,889 | |
| 1924 | R | 769 | 3,235 | 6,624 | |
| 1920 | R | 1,339 | 5,483 | 6,900 | |
| 1916 | R | 1,772 | 2,097 | 3,938 | |
| 1912 | D | 1,380 | 1,034 | 3,236 | |
| 1908 | R | 1,502 | 1,864 | 3,441 | |
| 1904 | R | 1,116 | 2,420 | 3,639 | |
| 1900 | R | 1,399 | 2,067 | 3,536 | |
| 1896 | R | 1,160 | 1,843 | 3,015 | |
| 1892 | R | 0 | 866 | 2,025 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Richland County's economy centers on sugar beet and small-grain agriculture along the Red River, and its presidential margins have exceeded R+35 in each of the last three cycles, reflecting the broader rural consolidation seen across the northern Plains.
The Republican margin in Richland County reached its widest at sixty points in 1920. The margin in 2024 was thirty-eight points, in line with the county's deep historical pattern.
Richland County's loyalty is rooted in its place. Median household income of $75,432, a 90% non-Hispanic-white share, and a population of 16,584 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 Wilkin County and Barnes County.
