| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 616 | 2,651 | 3,292 | |
| 2020 | R | 613 | 2,581 | 3,237 | |
| 2016 | R | 605 | 2,304 | 3,043 | |
| 2012 | R | 937 | 1,988 | 2,999 | |
| 2008 | R | 1,235 | 1,964 | 3,292 | |
| 2004 | R | 1,201 | 2,085 | 3,312 | |
| 2000 | R | 1,271 | 1,771 | 3,105 | |
| 1996 | D | 1,493 | 1,361 | 3,291 | |
| 1992 | D | 1,519 | 1,272 | 3,724 | |
| 1988 | D | 1,872 | 1,554 | 3,433 | |
| 1984 | R | 1,600 | 2,047 | 3,647 | |
| 1980 | R | 1,720 | 2,005 | 3,869 | |
| 1976 | D | 2,249 | 1,772 | 4,035 | |
| 1972 | R | 1,642 | 2,984 | 4,626 | |
| 1968 | R | 2,189 | 2,286 | 4,691 | |
| 1964 | D | 3,198 | 1,677 | 4,875 | |
| 1960 | R | 2,439 | 2,888 | 5,327 | |
| 1956 | R | 2,662 | 3,020 | 5,682 | |
| 1952 | R | 2,508 | 3,429 | 5,937 | |
| 1948 | D | 3,410 | 2,633 | 6,044 | |
| 1944 | D | 3,022 | 2,970 | 6,000 | |
| 1940 | D | 3,689 | 3,446 | 7,154 | |
| 1936 | D | 4,173 | 3,115 | 7,306 | |
| 1932 | D | 3,677 | 1,877 | 5,563 | |
| 1928 | R | 2,735 | 3,506 | 6,256 | |
| 1924 | D | 3,555 | 3,318 | 7,222 | |
| 1920 | R | 3,374 | 3,442 | 6,929 | |
| 1916 | D | 2,404 | 1,823 | 4,308 | |
| 1912 | D | 2,268 | 1,268 | 4,181 | |
| 1908 | D | 2,236 | 1,882 | 4,206 | |
| 1904 | D | 2,157 | 2,060 | 4,391 | |
| 1900 | D | 2,459 | 2,185 | 4,809 | |
| 1896 | D | 2,906 | 2,000 | 4,953 | |
| 1892 | D | 2,003 | 1,607 | 4,248 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Gentry County, tucked into Missouri's northwest corner, recorded an R+61.8 margin in 2024, reflecting the deep Republican consolidation that has reshaped small-population agricultural counties across the western Plains fringe over the past decade.
The Democratic margin in Gentry County peaked at thirty-two points in 1932. By 2000 the county had flipped, voting Republican for the first time in many years. The 2024 margin was sixty-two points, the most Republican-leaning result in the county's modern history.
The economic context is the key. Gentry County's median household income of $55,848 sits well below state and national norms, and 18% 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 Pike County and Marion County.