| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 405 | 1,815 | 2,253 | |
| 2020 | R | 442 | 1,893 | 2,374 | |
| 2016 | R | 419 | 1,796 | 2,383 | |
| 2012 | R | 673 | 1,654 | 2,379 | |
| 2008 | R | 841 | 1,468 | 2,377 | |
| 2004 | R | 858 | 1,654 | 2,561 | |
| 2000 | R | 661 | 1,610 | 2,410 | |
| 1996 | R | 962 | 1,192 | 2,542 | |
| 1992 | R | 888 | 1,171 | 2,916 | |
| 1988 | R | 1,317 | 1,901 | 3,241 | |
| 1984 | R | 1,036 | 2,426 | 3,506 | |
| 1980 | R | 746 | 2,660 | 3,599 | |
| 1976 | R | 1,742 | 1,941 | 3,767 | |
| 1972 | R | 1,297 | 2,519 | 3,910 | |
| 1968 | R | 1,265 | 2,266 | 3,782 | |
| 1964 | D | 2,314 | 1,875 | 4,189 | |
| 1960 | R | 1,885 | 2,641 | 4,535 | |
| 1956 | R | 1,434 | 2,912 | 4,355 | |
| 1952 | R | 1,016 | 3,709 | 4,762 | |
| 1948 | R | 1,492 | 2,385 | 3,986 | |
| 1944 | R | 1,557 | 2,529 | 4,106 | |
| 1940 | R | 1,878 | 3,335 | 5,232 | |
| 1936 | D | 3,114 | 1,263 | 5,298 | |
| 1932 | D | 3,823 | 1,062 | 4,939 | |
| 1928 | R | 2,123 | 2,364 | 4,512 | |
| 1924 | R | 138 | 1,644 | 3,703 | |
| 1920 | R | 456 | 3,202 | 3,736 | |
| 1916 | R | 810 | 1,226 | 2,093 | |
| 1912 | D | 494 | 356 | 1,510 | |
| 1908 | R | 535 | 1,243 | 1,826 | |
| 1904 | R | 209 | 1,330 | 1,644 | |
| 1900 | R | 388 | 966 | 1,382 | |
| 1896 | R | 317 | 584 | 909 | |
| 1892 | R | 0 | 157 | 309 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Wells County's 2024 presidential margin of R+62.6 reflects the overwhelmingly rural, agricultural character common to the state's interior counties, where small-town populations have shifted decisively toward Republican candidates over the past two decades.
The Republican margin in Wells County reached its widest at seventy-four points in 1920. The margin in 2024 was sixty-three points, in line with the county's deep historical pattern.
Wells County's loyalty is rooted in its place. Median household income of $66,114, a 95% non-Hispanic-white share, and a population of 3,890 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 McKenzie County and Sherman County.
