| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 403 | 1,872 | 2,301 | |
| 2020 | R | 412 | 1,901 | 2,344 | |
| 2016 | R | 339 | 1,780 | 2,205 | |
| 2012 | R | 498 | 1,657 | 2,195 | |
| 2008 | R | 706 | 1,657 | 2,423 | |
| 2004 | R | 564 | 1,801 | 2,391 | |
| 2000 | R | 583 | 1,610 | 2,263 | |
| 1996 | R | 758 | 1,346 | 2,392 | |
| 1992 | R | 716 | 1,173 | 2,590 | |
| 1988 | R | 873 | 1,604 | 2,503 | |
| 1984 | R | 739 | 2,055 | 2,807 | |
| 1980 | R | 655 | 2,101 | 2,929 | |
| 1976 | R | 1,042 | 1,587 | 2,769 | |
| 1972 | R | 771 | 2,011 | 2,782 | |
| 1968 | R | 793 | 1,759 | 2,731 | |
| 1964 | R | 1,545 | 1,657 | 3,202 | |
| 1960 | R | 1,248 | 2,045 | 3,293 | |
| 1956 | R | 1,089 | 2,189 | 3,278 | |
| 1952 | R | 1,027 | 2,630 | 3,657 | |
| 1948 | R | 1,385 | 1,670 | 3,055 | |
| 1944 | R | 1,475 | 2,096 | 3,571 | |
| 1940 | R | 1,590 | 2,449 | 4,039 | |
| 1936 | R | 1,960 | 2,033 | 4,095 | |
| 1932 | D | 2,400 | 1,584 | 4,057 | |
| 1928 | R | 1,205 | 2,768 | 3,996 | |
| 1924 | R | 802 | 2,014 | 3,659 | |
| 1920 | R | 912 | 1,935 | 2,986 | |
| 1916 | D | 1,388 | 840 | 2,305 | |
| 1912 | D | 788 | 552 | 2,065 | |
| 1908 | D | 1,045 | 1,040 | 2,146 | |
| 1904 | R | 219 | 1,133 | 1,772 | |
| 1900 | D | 864 | 810 | 1,709 | |
| 1896 | D | 886 | 692 | 1,608 | |
| 1892 | D | 579 | 145 | 1,553 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Valley County recorded an R+63.9 margin in 2024, reflecting the deep Republican lean common across Nebraska's sparsely populated Sand Hills region, where ranching and agriculture define both the economy and the electorate.
The Republican margin in Valley County reached its widest at sixty-five points in 2016. The margin in 2024 was sixty-four points, in line with the county's deep historical pattern.
Valley County's loyalty is rooted in its place. Median household income of $61,852, a 95% non-Hispanic-white share, and a population of 4,066 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 Golden Valley County and Boyd County.
