| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,974 | 4,446 | 6,543 | |
| 2020 | R | 1,985 | 4,272 | 6,371 | |
| 2016 | R | 1,732 | 3,628 | 5,816 | |
| 2012 | R | 2,569 | 3,171 | 5,888 | |
| 2008 | R | 2,625 | 3,074 | 5,847 | |
| 2004 | R | 2,614 | 3,325 | 5,994 | |
| 2000 | R | 2,493 | 2,840 | 5,469 | |
| 1996 | D | 2,552 | 2,034 | 5,140 | |
| 1992 | D | 2,234 | 1,962 | 5,453 | |
| 1988 | D | 2,910 | 2,005 | 4,983 | |
| 1984 | R | 2,517 | 2,783 | 5,363 | |
| 1980 | R | 1,866 | 3,214 | 5,514 | |
| 1976 | D | 2,873 | 2,644 | 5,641 | |
| 1972 | R | 2,258 | 3,655 | 6,022 | |
| 1968 | R | 2,063 | 3,346 | 5,751 | |
| 1964 | D | 3,962 | 2,169 | 6,146 | |
| 1960 | R | 2,896 | 4,046 | 6,949 | |
| 1956 | R | 2,981 | 4,283 | 7,270 | |
| 1952 | R | 2,281 | 5,377 | 7,671 | |
| 1948 | D | 3,392 | 3,389 | 6,891 | |
| 1944 | R | 2,899 | 4,042 | 6,977 | |
| 1940 | R | 3,489 | 4,733 | 8,255 | |
| 1936 | R | 3,619 | 4,155 | 8,070 | |
| 1932 | D | 3,099 | 2,637 | 5,812 | |
| 1928 | R | 2,235 | 4,772 | 7,034 | |
| 1924 | R | 840 | 4,314 | 7,183 | |
| 1920 | R | 1,647 | 5,338 | 7,099 | |
| 1916 | R | 1,805 | 2,316 | 4,188 | |
| 1912 | D | 1,390 | 1,258 | 4,097 | |
| 1908 | R | 1,532 | 2,560 | 4,167 | |
| 1904 | R | 1,032 | 2,857 | 4,050 | |
| 1900 | R | 1,824 | 2,806 | 4,714 | |
| 1896 | R | 2,220 | 2,541 | 4,825 | |
| 1892 | R | 1,540 | 2,295 | 4,183 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Guthrie County's small-town and agricultural landscape has tracked a steady rightward shift over the past decade, with its 11,000-plus residents delivering one of Iowa's wider presidential margins in 2024.
The Republican margin in Guthrie County reached its widest at fifty-two points in 1920. The margin in 2024 was thirty-eight points, in line with the county's deep historical pattern.
Guthrie County's loyalty is rooted in its place. Median household income of $77,711, a 93% non-Hispanic-white share, and a population of 10,688 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 Madison County and Lucas County.
