| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 3,270 | 11,132 | 14,653 | |
| 2020 | R | 3,389 | 11,103 | 14,784 | |
| 2016 | R | 2,929 | 10,277 | 13,861 | |
| 2012 | R | 4,350 | 8,457 | 13,141 | |
| 2008 | R | 5,709 | 7,691 | 13,629 | |
| 2004 | R | 4,606 | 8,609 | 13,352 | |
| 2000 | R | 4,898 | 7,452 | 12,619 | |
| 1996 | R | 5,277 | 5,746 | 12,862 | |
| 1992 | D | 5,431 | 5,410 | 13,608 | |
| 1988 | R | 5,979 | 7,689 | 13,746 | |
| 1984 | R | 5,267 | 8,438 | 13,898 | |
| 1980 | R | 6,027 | 7,452 | 14,098 | |
| 1976 | D | 7,263 | 6,442 | 13,843 | |
| 1972 | R | 4,450 | 8,453 | 13,045 | |
| 1968 | R | 5,493 | 6,525 | 13,491 | |
| 1964 | D | 8,574 | 5,919 | 14,570 | |
| 1960 | R | 6,325 | 8,810 | 15,239 | |
| 1956 | R | 7,186 | 8,722 | 15,969 | |
| 1952 | R | 7,417 | 8,620 | 16,189 | |
| 1948 | D | 7,709 | 7,453 | 15,463 | |
| 1944 | R | 6,744 | 8,213 | 15,086 | |
| 1940 | R | 8,718 | 9,071 | 17,889 | |
| 1936 | D | 9,730 | 7,460 | 17,344 | |
| 1932 | D | 8,845 | 6,397 | 15,933 | |
| 1928 | R | 5,761 | 8,262 | 14,291 | |
| 1924 | R | 5,966 | 6,670 | 14,521 | |
| 1920 | R | 6,335 | 7,486 | 15,388 | |
| 1916 | D | 3,990 | 3,878 | 8,949 | |
| 1912 | D | 3,373 | 2,156 | 8,586 | |
| 1908 | D | 4,172 | 4,145 | 9,385 | |
| 1904 | R | 3,559 | 4,698 | 8,843 | |
| 1900 | R | 3,491 | 3,502 | 7,226 | |
| 1896 | R | 3,344 | 3,434 | 6,830 | |
| 1892 | R | 2,488 | 2,809 | 5,845 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Greene County's R+53.7 margin in 2024 places it among Indiana's most heavily one-sided counties, reflecting the deep rural realignment that has reshaped small coal-country communities across the southwestern part of the state.
The Republican margin in Greene County reached its widest at fifty-four points in 2024. The margin in 2024 was fifty-four points, in line with the county's deep historical pattern.
Greene County's loyalty is rooted in its place. Median household income of $62,094, a 96% non-Hispanic-white share, and a population of 31,021 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 Crawford County and Jasper County.
