| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 327 | 2,318 | 2,708 | |
| 2020 | R | 318 | 2,418 | 2,781 | |
| 2016 | R | 300 | 2,233 | 2,664 | |
| 2012 | R | 382 | 2,135 | 2,565 | |
| 2008 | R | 525 | 2,105 | 2,667 | |
| 2004 | R | 557 | 2,256 | 2,847 | |
| 2000 | R | 611 | 2,057 | 2,792 | |
| 1996 | R | 758 | 2,005 | 3,024 | |
| 1992 | R | 843 | 1,579 | 3,388 | |
| 1988 | R | 960 | 2,316 | 3,315 | |
| 1984 | R | 626 | 2,813 | 3,477 | |
| 1980 | R | 748 | 2,731 | 3,667 | |
| 1976 | R | 1,264 | 2,317 | 3,675 | |
| 1972 | R | 827 | 2,919 | 3,833 | |
| 1968 | R | 844 | 2,567 | 3,759 | |
| 1964 | R | 1,804 | 2,164 | 4,000 | |
| 1960 | R | 1,004 | 3,123 | 4,145 | |
| 1956 | R | 985 | 3,117 | 4,129 | |
| 1952 | R | 884 | 3,713 | 4,631 | |
| 1948 | R | 1,223 | 2,715 | 4,094 | |
| 1944 | R | 1,098 | 3,053 | 4,197 | |
| 1940 | R | 1,563 | 3,676 | 5,290 | |
| 1936 | R | 2,154 | 3,193 | 5,358 | |
| 1932 | D | 3,007 | 2,165 | 5,327 | |
| 1928 | R | 1,332 | 3,206 | 4,595 | |
| 1924 | R | 1,376 | 2,647 | 4,815 | |
| 1920 | R | 1,230 | 2,862 | 4,172 | |
| 1916 | D | 2,912 | 2,271 | 5,428 | |
| 1912 | D | 1,257 | 594 | 3,175 | |
| 1908 | R | 1,490 | 1,762 | 3,372 | |
| 1904 | R | 811 | 2,147 | 3,233 | |
| 1900 | R | 1,511 | 1,691 | 3,236 | |
| 1896 | D | 1,507 | 1,374 | 2,909 | |
| 1892 | R | 0 | 1,469 | 2,829 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Phillips County, anchored by the small city of Phillipsburg, posted a 73.7-point Republican presidential margin in 2024 — among the widest in a state already defined by its heavily rural, GOP-dominant northwest quadrant.
The Republican margin in Phillips County reached its widest at seventy-six points in 2020. The margin in 2024 was seventy-four points, in line with the county's deep historical pattern.
Phillips County's loyalty is rooted in its place. Median household income of $62,123, a 93% 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 Dickinson County and Brown County.
