| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 1,338 | 3,576 | 4,982 | |
| 2020 | R | 1,519 | 3,370 | 4,958 | |
| 2016 | R | 1,398 | 3,081 | 4,760 | |
| 2012 | R | 2,139 | 2,660 | 4,887 | |
| 2008 | D | 2,428 | 2,294 | 4,806 | |
| 2004 | R | 2,482 | 2,674 | 5,191 | |
| 2000 | R | 2,326 | 2,341 | 4,823 | |
| 1996 | D | 2,371 | 1,817 | 4,703 | |
| 1992 | D | 2,374 | 1,789 | 5,379 | |
| 1988 | D | 3,377 | 2,041 | 5,463 | |
| 1984 | D | 3,018 | 2,715 | 5,810 | |
| 1980 | R | 2,463 | 3,025 | 5,968 | |
| 1976 | D | 3,182 | 2,623 | 5,904 | |
| 1972 | R | 2,845 | 3,141 | 6,066 | |
| 1968 | R | 2,874 | 3,114 | 6,223 | |
| 1964 | D | 4,441 | 2,206 | 6,647 | |
| 1960 | D | 3,695 | 3,551 | 7,249 | |
| 1956 | R | 3,624 | 3,795 | 7,421 | |
| 1952 | R | 2,993 | 4,595 | 7,597 | |
| 1948 | D | 3,858 | 2,594 | 6,601 | |
| 1944 | D | 3,726 | 2,772 | 6,533 | |
| 1940 | D | 4,482 | 3,322 | 7,822 | |
| 1936 | D | 4,515 | 2,613 | 7,333 | |
| 1932 | D | 4,094 | 2,378 | 6,568 | |
| 1928 | R | 2,843 | 3,463 | 6,355 | |
| 1924 | R | 593 | 2,943 | 5,947 | |
| 1920 | R | 1,467 | 3,904 | 5,466 | |
| 1916 | D | 1,630 | 1,594 | 3,287 | |
| 1912 | D | 1,274 | 953 | 3,145 | |
| 1908 | R | 1,340 | 1,639 | 3,103 | |
| 1904 | R | 1,081 | 1,999 | 3,157 | |
| 1900 | R | 1,477 | 1,908 | 3,440 | |
| 1896 | R | 1,547 | 1,595 | 3,190 | |
| 1892 | R | 1,101 | 1,110 | 2,382 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Palo Alto County's roughly 10,000 residents are concentrated in small agricultural towns, and its R+44.9 presidential margin in 2024 reflects a long realignment in Iowa's northwest quadrant away from its once-competitive swing-county status.
The Republican margin in Palo Alto County reached its widest at forty-five points in 2024. The margin in 2024 was forty-five points, in line with the county's deep historical pattern.
Palo Alto County's loyalty is rooted in its place. Median household income of $72,781, a 92% non-Hispanic-white share, and a population of 8,863 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 Monroe County and Mountrail County.
