| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 346 | 2,126 | 2,507 | |
| 2020 | R | 339 | 2,325 | 2,699 | |
| 2016 | R | 275 | 2,031 | 2,419 | |
| 2012 | R | 361 | 2,038 | 2,460 | |
| 2008 | R | 468 | 2,068 | 2,588 | |
| 2004 | R | 534 | 2,121 | 2,710 | |
| 2000 | R | 597 | 2,016 | 2,775 | |
| 1996 | R | 650 | 1,864 | 2,787 | |
| 1992 | R | 771 | 1,249 | 3,090 | |
| 1988 | R | 1,012 | 1,938 | 3,007 | |
| 1984 | R | 699 | 2,604 | 3,349 | |
| 1980 | R | 725 | 2,275 | 3,187 | |
| 1976 | R | 1,412 | 1,664 | 3,137 | |
| 1972 | R | 904 | 2,457 | 3,425 | |
| 1968 | R | 1,012 | 2,252 | 3,574 | |
| 1964 | R | 1,923 | 1,985 | 3,924 | |
| 1960 | R | 1,639 | 2,840 | 4,490 | |
| 1956 | R | 1,238 | 3,059 | 4,316 | |
| 1952 | R | 1,105 | 3,331 | 4,482 | |
| 1948 | R | 1,636 | 2,197 | 3,882 | |
| 1944 | R | 1,166 | 2,361 | 3,549 | |
| 1940 | R | 1,650 | 2,590 | 4,273 | |
| 1936 | D | 2,235 | 2,150 | 4,385 | |
| 1932 | D | 2,229 | 2,005 | 4,322 | |
| 1928 | R | 1,044 | 2,583 | 3,652 | |
| 1924 | R | 930 | 2,442 | 3,699 | |
| 1920 | R | 843 | 2,143 | 3,064 | |
| 1916 | D | 2,394 | 1,621 | 4,234 | |
| 1912 | D | 865 | 545 | 2,258 | |
| 1908 | R | 1,003 | 1,280 | 2,409 | |
| 1904 | R | 495 | 1,266 | 1,964 | |
| 1900 | R | 925 | 927 | 1,881 | |
| 1896 | D | 971 | 817 | 1,812 | |
| 1892 | R | 0 | 847 | 1,692 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Rooks County, anchored by the small city of Stockton, returned an R+71.2 margin in 2024 — among the widest in the state — reflecting the deep Republican alignment common across Kansas's sparsely populated High Plains counties.
The Republican margin in Rooks County reached its widest at seventy-four points in 2020. The margin in 2024 was seventy-one points, in line with the county's deep historical pattern.
Rooks County's loyalty is rooted in its place. Median household income of $62,500, a 92% non-Hispanic-white share, and a population of 4,813 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 Smith County and Lincoln County.
