| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 934 | 3,371 | 4,396 | |
| 2020 | R | 964 | 3,489 | 4,565 | |
| 2016 | R | 727 | 3,050 | 4,068 | |
| 2012 | R | 898 | 2,903 | 3,906 | |
| 2008 | R | 1,121 | 3,054 | 4,232 | |
| 2004 | R | 1,093 | 3,259 | 4,408 | |
| 2000 | R | 1,196 | 2,700 | 4,040 | |
| 1996 | R | 1,118 | 2,369 | 4,090 | |
| 1992 | R | 1,021 | 1,824 | 4,298 | |
| 1988 | R | 1,246 | 2,581 | 3,870 | |
| 1984 | R | 1,037 | 3,063 | 4,139 | |
| 1980 | R | 938 | 2,491 | 3,602 | |
| 1976 | R | 1,549 | 2,145 | 3,783 | |
| 1972 | R | 782 | 2,667 | 3,523 | |
| 1968 | R | 933 | 2,223 | 3,525 | |
| 1964 | R | 1,594 | 1,998 | 3,606 | |
| 1960 | R | 1,263 | 2,925 | 4,197 | |
| 1956 | R | 1,247 | 3,286 | 4,549 | |
| 1952 | R | 1,239 | 3,731 | 4,989 | |
| 1948 | R | 1,796 | 2,945 | 4,812 | |
| 1944 | R | 1,660 | 3,461 | 5,144 | |
| 1940 | R | 2,272 | 4,164 | 6,480 | |
| 1936 | R | 2,662 | 3,900 | 6,578 | |
| 1932 | D | 3,389 | 2,707 | 6,184 | |
| 1928 | R | 1,514 | 4,342 | 5,883 | |
| 1924 | R | 1,631 | 3,552 | 5,686 | |
| 1920 | R | 1,785 | 3,370 | 5,249 | |
| 1916 | D | 3,121 | 2,799 | 6,142 | |
| 1912 | D | 1,581 | 681 | 3,636 | |
| 1908 | R | 1,729 | 2,094 | 3,923 | |
| 1904 | R | 1,280 | 2,164 | 3,644 | |
| 1900 | R | 2,066 | 2,159 | 4,279 | |
| 1896 | D | 2,194 | 2,000 | 4,270 | |
| 1892 | R | 0 | 1,886 | 3,721 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Coffey County, a rural stretch of east-central Kansas anchored by Burlington, delivered over 77% of its 2024 presidential vote to the Republican nominee — a margin consistent with decades of lopsided results in sparsely populated Great Plains counties.
The Republican margin in Coffey County reached its widest at fifty-seven points in 2016. The margin in 2024 was fifty-five points, in line with the county's deep historical pattern.
Coffey County's loyalty is rooted in its place. Median household income of $70,346, a 92% non-Hispanic-white share, and a population of 8,308 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 Brown County and Norton County.