| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 16,338 | 23,738 | 41,023 | |
| 2020 | R | 18,123 | 24,545 | 43,594 | |
| 2016 | R | 15,922 | 21,924 | 40,105 | |
| 2012 | D | 19,712 | 19,369 | 40,005 | |
| 2008 | D | 25,040 | 18,121 | 43,706 | |
| 2004 | R | 18,426 | 20,988 | 39,744 | |
| 2000 | R | 17,570 | 18,021 | 36,228 | |
| 1996 | D | 17,974 | 15,751 | 38,499 | |
| 1992 | D | 18,050 | 15,834 | 42,161 | |
| 1988 | R | 19,192 | 21,929 | 41,293 | |
| 1984 | R | 18,429 | 26,259 | 44,973 | |
| 1980 | R | 19,261 | 24,133 | 46,527 | |
| 1976 | D | 24,684 | 23,555 | 48,610 | |
| 1972 | R | 18,898 | 29,730 | 48,957 | |
| 1968 | R | 20,328 | 20,814 | 46,664 | |
| 1964 | D | 27,606 | 19,001 | 46,751 | |
| 1960 | D | 25,105 | 24,940 | 50,178 | |
| 1956 | R | 24,680 | 25,253 | 50,068 | |
| 1952 | D | 25,841 | 25,806 | 51,878 | |
| 1948 | D | 25,906 | 19,049 | 45,564 | |
| 1944 | D | 24,649 | 21,493 | 46,223 | |
| 1940 | D | 29,308 | 23,177 | 52,684 | |
| 1936 | D | 33,018 | 17,278 | 50,738 | |
| 1932 | D | 25,886 | 18,310 | 45,187 | |
| 1928 | R | 18,509 | 22,962 | 41,968 | |
| 1924 | R | 12,999 | 19,545 | 37,059 | |
| 1920 | R | 15,739 | 18,668 | 37,114 | |
| 1916 | D | 11,165 | 8,934 | 22,496 | |
| 1912 | D | 7,256 | 3,103 | 18,060 | |
| 1908 | D | 10,685 | 10,223 | 22,342 | |
| 1904 | R | 6,625 | 10,327 | 18,332 | |
| 1900 | R | 7,472 | 7,992 | 16,023 | |
| 1896 | R | 7,558 | 8,020 | 15,672 | |
| 1892 | D | 6,599 | 6,159 | 12,928 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Vigo County, home to Terre Haute and Indiana State University, voted with the presidential winner in nearly every election for decades before breaking that pattern; its R+18.1 margin in 2024 reflects a broader working-class realignment across the Midwest.
The county's recent history is a story of close margins. The Democratic margin reached thirty-one points in 1936; the Republican margin reached twenty-two points in 1972. Most other elections have been decided by single-digit points.
Vigo County's demographics — a population of 106,109, a 85% non-Hispanic-white share, a median household income of $52,976 — situate the county close to national averages on several dimensions. The county's voting pattern over the last decade is most similar to that of Shiawassee County and Oneida County.
