| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,284 | 5,983 | 8,397 | |
| 2020 | R | 2,696 | 6,275 | 9,090 | |
| 2016 | R | 2,543 | 5,653 | 8,742 | |
| 2012 | R | 3,850 | 4,937 | 8,923 | |
| 2008 | D | 4,625 | 4,329 | 9,097 | |
| 2004 | R | 4,132 | 5,042 | 9,258 | |
| 2000 | R | 3,960 | 4,612 | 8,878 | |
| 1996 | D | 4,031 | 3,477 | 8,505 | |
| 1992 | D | 3,660 | 3,464 | 9,059 | |
| 1988 | D | 5,088 | 3,938 | 9,107 | |
| 1984 | R | 4,838 | 4,872 | 9,814 | |
| 1980 | R | 3,810 | 5,568 | 10,262 | |
| 1976 | D | 5,190 | 4,653 | 10,046 | |
| 1972 | R | 4,393 | 5,841 | 10,358 | |
| 1968 | R | 4,392 | 5,350 | 10,089 | |
| 1964 | D | 6,893 | 3,776 | 10,674 | |
| 1960 | R | 5,806 | 6,278 | 12,084 | |
| 1956 | R | 5,514 | 6,680 | 12,204 | |
| 1952 | R | 4,330 | 7,765 | 12,105 | |
| 1948 | D | 6,039 | 4,186 | 10,353 | |
| 1944 | D | 5,488 | 4,918 | 10,433 | |
| 1940 | D | 6,502 | 5,639 | 12,165 | |
| 1936 | D | 8,071 | 3,569 | 11,863 | |
| 1932 | D | 6,925 | 3,075 | 10,148 | |
| 1928 | R | 4,736 | 4,878 | 9,686 | |
| 1924 | R | 1,369 | 3,806 | 8,747 | |
| 1920 | R | 1,682 | 6,018 | 7,769 | |
| 1916 | R | 1,748 | 2,647 | 4,439 | |
| 1912 | D | 1,813 | 857 | 4,586 | |
| 1908 | R | 1,826 | 2,612 | 4,482 | |
| 1904 | R | 1,352 | 3,001 | 4,412 | |
| 1900 | R | 1,777 | 3,122 | 4,951 | |
| 1896 | R | 1,861 | 2,930 | 4,859 | |
| 1892 | R | 1,513 | 1,801 | 3,401 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Kossuth covers more square miles than any other Iowa county, yet holds fewer than 18,000 residents — a density that mirrors its agricultural economy and helps explain the 44-point Republican margin it delivered in 2024.
The Republican margin in Kossuth County reached its widest at fifty-six points in 1920. The margin in 2024 was forty-four points, in line with the county's deep historical pattern.
Kossuth County's loyalty is rooted in its place. Median household income of $67,697, a 93% non-Hispanic-white share, and a population of 14,516 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 Hardin County and Wright County.
