| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 412 | 1,888 | 2,355 | |
| 2020 | R | 486 | 1,958 | 2,485 | |
| 2016 | R | 436 | 1,791 | 2,332 | |
| 2012 | R | 588 | 1,637 | 2,265 | |
| 2008 | R | 622 | 1,612 | 2,260 | |
| 2004 | R | 582 | 1,717 | 2,325 | |
| 2000 | R | 564 | 1,573 | 2,220 | |
| 1996 | R | 706 | 1,284 | 2,185 | |
| 1992 | R | 692 | 1,075 | 2,303 | |
| 1988 | R | 923 | 1,317 | 2,278 | |
| 1984 | R | 651 | 1,689 | 2,367 | |
| 1980 | R | 640 | 1,488 | 2,354 | |
| 1976 | D | 1,173 | 1,142 | 2,373 | |
| 1972 | R | 687 | 1,480 | 2,266 | |
| 1968 | R | 723 | 1,237 | 2,175 | |
| 1964 | D | 1,243 | 1,012 | 2,260 | |
| 1960 | R | 862 | 1,455 | 2,318 | |
| 1956 | R | 887 | 1,535 | 2,423 | |
| 1952 | R | 789 | 1,670 | 2,466 | |
| 1948 | R | 932 | 1,076 | 2,049 | |
| 1944 | R | 761 | 1,455 | 2,233 | |
| 1940 | R | 919 | 1,168 | 2,151 | |
| 1936 | D | 1,602 | 941 | 2,603 | |
| 1932 | D | 1,453 | 903 | 2,592 | |
| 1928 | R | 705 | 1,440 | 2,210 | |
| 1924 | R | 397 | 1,076 | 2,169 | |
| 1920 | R | 480 | 1,191 | 1,783 | |
| 1916 | D | 795 | 532 | 1,394 | |
| 1912 | D | 448 | 266 | 1,189 | |
| 1908 | R | 401 | 508 | 935 | |
| 1904 | R | 140 | 444 | 651 | |
| 1900 | R | 275 | 347 | 646 | |
| 1896 | D | 334 | 196 | 532 | |
| 1892 | R | 0 | 266 | 541 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
A sparsely populated High Plains county where agriculture defines both the economy and the political culture, Phillips has delivered Republican presidential margins exceeding 60 points in recent cycles, making it among the state's most lopsided jurisdictions.
The Democratic margin in Phillips County peaked at twenty-six points in 1896. By 1980 the county had flipped, voting Republican for the first time in many years. The 2024 margin was sixty-three points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Phillips County's median household income of $64,674 sits well below state and national norms, and 17% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country. The county's voting pattern over the last decade is most similar to that of DeWitt County and Yuma County.