| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 11,493 | 12,898 | 24,874 | |
| 2020 | R | 11,426 | 12,188 | 24,189 | |
| 2016 | R | 8,688 | 10,783 | 21,564 | |
| 2012 | D | 11,818 | 9,637 | 22,051 | |
| 2008 | D | 12,019 | 9,762 | 22,236 | |
| 2004 | D | 10,592 | 10,237 | 21,131 | |
| 2000 | R | 7,301 | 8,346 | 17,217 | |
| 1996 | D | 8,006 | 5,806 | 15,848 | |
| 1992 | D | 7,210 | 5,204 | 15,987 | |
| 1988 | D | 7,566 | 6,652 | 14,380 | |
| 1984 | D | 7,481 | 7,414 | 14,998 | |
| 1980 | D | 7,432 | 6,481 | 15,537 | |
| 1976 | D | 7,540 | 5,214 | 13,285 | |
| 1972 | R | 5,194 | 5,947 | 11,393 | |
| 1968 | D | 5,034 | 3,912 | 9,565 | |
| 1964 | D | 5,967 | 3,184 | 9,166 | |
| 1960 | D | 4,653 | 4,482 | 9,157 | |
| 1956 | R | 3,807 | 3,974 | 7,797 | |
| 1952 | R | 4,092 | 4,817 | 8,962 | |
| 1948 | D | 6,020 | 3,126 | 9,580 | |
| 1944 | D | 5,490 | 2,705 | 8,256 | |
| 1940 | D | 7,036 | 3,511 | 10,713 | |
| 1936 | D | 6,507 | 2,182 | 8,957 | |
| 1932 | D | 4,386 | 2,318 | 7,222 | |
| 1928 | R | 2,221 | 4,062 | 6,522 | |
| 1924 | R | 323 | 2,960 | 6,404 | |
| 1920 | R | 1,427 | 4,518 | 7,375 | |
| 1916 | D | 1,912 | 1,331 | 4,028 | |
| 1912 | D | 790 | 490 | 3,025 | |
| 1908 | R | 648 | 1,882 | 2,969 | |
| 1904 | R | 234 | 1,953 | 2,371 | |
| 1900 | R | 767 | 1,339 | 2,158 | |
| 1896 | D | 213 | 202 | 421 | |
| 1892 | D | 57 | 44 | 127 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Beltrami County sits in Minnesota's lake-dense north country and is home to the Leech Lake Band of Ojibwe, whose reservation shapes local demographics and voting patterns in ways that have kept presidential margins narrower than surrounding rural counties.
The Democratic margin in Beltrami County has rarely exceeded forty-eight points in modern history; the Republican margin has rarely exceeded seventy-three points. 2024 delivered the county to the Republican candidate by six points.
Beltrami County's demographics resemble the country more than they resemble most counties. A 71% non-Hispanic-white share, a 16% poverty rate, and a median household income of $68,975 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of Mason County and Gogebic County.