| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 5,515 | 7,462 | 13,314 | |
| 2020 | R | 6,055 | 7,550 | 13,988 | |
| 2016 | R | 4,649 | 6,552 | 12,472 | |
| 2012 | R | 5,111 | 6,470 | 11,875 | |
| 2008 | R | 5,924 | 6,698 | 12,911 | |
| 2004 | R | 5,234 | 7,951 | 13,440 | |
| 2000 | R | 5,190 | 6,652 | 12,455 | |
| 1996 | R | 4,884 | 6,612 | 13,221 | |
| 1992 | R | 4,811 | 5,090 | 14,656 | |
| 1988 | R | 5,314 | 6,820 | 12,334 | |
| 1984 | R | 4,188 | 9,796 | 14,121 | |
| 1980 | R | 4,680 | 8,431 | 14,551 | |
| 1976 | R | 5,634 | 7,062 | 13,428 | |
| 1972 | R | 3,720 | 9,157 | 13,143 | |
| 1968 | R | 4,020 | 6,558 | 11,446 | |
| 1964 | D | 6,197 | 5,184 | 11,462 | |
| 1960 | R | 4,755 | 7,470 | 12,266 | |
| 1956 | R | 3,831 | 8,021 | 11,911 | |
| 1952 | R | 3,944 | 8,544 | 12,568 | |
| 1948 | R | 5,708 | 5,941 | 11,876 | |
| 1944 | R | 4,984 | 5,710 | 10,799 | |
| 1940 | R | 6,170 | 6,918 | 13,219 | |
| 1936 | D | 7,340 | 6,005 | 13,425 | |
| 1932 | D | 6,365 | 6,044 | 12,756 | |
| 1928 | R | 2,761 | 8,753 | 11,595 | |
| 1924 | R | 2,750 | 6,290 | 10,974 | |
| 1920 | R | 3,303 | 5,492 | 8,990 | |
| 1916 | D | 5,584 | 4,215 | 10,464 | |
| 1912 | D | 2,363 | 962 | 5,525 | |
| 1908 | R | 2,562 | 2,973 | 5,844 | |
| 1904 | R | 1,461 | 3,450 | 5,554 | |
| 1900 | R | 2,865 | 3,083 | 6,079 | |
| 1896 | D | 3,276 | 2,860 | 6,229 | |
| 1892 | R | 0 | 2,623 | 5,344 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Lyon County anchors the Flint Hills with Emporia State University at its core, a combination that has historically kept its Republican margins narrower than surrounding rural counties, though 2024's R+14.7 result signals a widening gap.
The Republican margin in Lyon County reached its widest at fifty-two points in 1928. The margin in 2024 was fifteen points, in line with the county's deep historical pattern.
Lyon County's loyalty is rooted in its place. Median household income of $59,912, a 72% non-Hispanic-white share, and a population of 32,186 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 Geary County and Yuba County.
