| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 25,749 | 43,078 | 71,429 | |
| 2020 | R | 26,512 | 43,486 | 72,640 | |
| 2016 | R | 17,995 | 33,488 | 58,719 | |
| 2012 | R | 20,378 | 28,944 | 51,426 | |
| 2008 | R | 22,163 | 28,071 | 51,982 | |
| 2004 | R | 19,940 | 31,260 | 52,041 | |
| 2000 | R | 16,682 | 25,359 | 44,388 | |
| 1996 | R | 17,041 | 18,331 | 41,325 | |
| 1992 | R | 15,399 | 16,461 | 45,287 | |
| 1988 | R | 17,007 | 18,312 | 36,122 | |
| 1984 | R | 16,161 | 23,463 | 39,699 | |
| 1980 | R | 13,516 | 18,943 | 36,293 | |
| 1976 | D | 15,776 | 14,128 | 31,241 | |
| 1972 | R | 11,178 | 15,079 | 27,814 | |
| 1968 | R | 10,032 | 12,604 | 24,284 | |
| 1964 | D | 14,926 | 8,382 | 23,308 | |
| 1960 | R | 11,035 | 12,899 | 23,934 | |
| 1956 | R | 10,153 | 12,469 | 22,622 | |
| 1952 | R | 8,058 | 13,761 | 21,959 | |
| 1948 | R | 7,260 | 7,936 | 15,755 | |
| 1944 | R | 6,480 | 6,877 | 13,493 | |
| 1940 | R | 6,360 | 6,523 | 12,959 | |
| 1936 | D | 5,856 | 4,110 | 11,211 | |
| 1932 | D | 5,366 | 4,106 | 10,031 | |
| 1928 | R | 2,645 | 5,877 | 8,691 | |
| 1924 | R | 2,618 | 4,141 | 8,355 | |
| 1920 | R | 3,177 | 4,693 | 8,355 | |
| 1916 | D | 4,675 | 4,524 | 9,779 | |
| 1912 | D | 2,134 | 1,301 | 5,376 | |
| 1908 | R | 1,813 | 2,202 | 4,506 | |
| 1904 | R | 1,206 | 2,346 | 4,316 | |
| 1900 | D | 1,997 | 1,927 | 4,270 | |
| 1896 | D | 2,736 | 2,064 | 4,907 | |
| 1892 | R | 630 | 1,689 | 4,289 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Linn County sits at the valley's southern edge where agriculture and wood-products manufacturing define the economy, and it has delivered Republican presidential margins above 20 points in each of the last three cycles.
The Republican margin in Linn County reached its widest at thirty-seven points in 1928. The margin in 2024 was twenty-four points, in line with the county's deep historical pattern.
Linn County's loyalty is rooted in its place. Median household income of $76,329, a 84% non-Hispanic-white share, and a population of 130,706 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 Crook County and Powell County.
