| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 933 | 3,961 | 4,992 | |
| 2020 | R | 1,011 | 4,029 | 5,144 | |
| 2016 | R | 881 | 3,697 | 4,846 | |
| 2012 | R | 1,351 | 3,262 | 4,743 | |
| 2008 | R | 1,706 | 3,122 | 4,903 | |
| 2004 | R | 1,522 | 3,414 | 4,996 | |
| 2000 | R | 1,518 | 3,008 | 4,609 | |
| 1996 | R | 1,848 | 2,281 | 4,720 | |
| 1992 | R | 2,018 | 2,523 | 5,438 | |
| 1988 | R | 2,132 | 3,066 | 5,219 | |
| 1984 | R | 1,937 | 3,363 | 5,332 | |
| 1980 | R | 2,479 | 3,082 | 5,779 | |
| 1976 | D | 2,827 | 2,702 | 5,565 | |
| 1972 | R | 2,021 | 3,470 | 5,509 | |
| 1968 | R | 2,315 | 2,512 | 5,435 | |
| 1964 | D | 3,137 | 2,000 | 5,146 | |
| 1960 | R | 2,585 | 2,756 | 5,346 | |
| 1956 | R | 2,343 | 2,946 | 5,296 | |
| 1952 | R | 2,546 | 2,757 | 5,332 | |
| 1948 | D | 2,788 | 2,230 | 5,073 | |
| 1944 | D | 2,515 | 2,467 | 4,997 | |
| 1940 | R | 2,638 | 2,902 | 5,551 | |
| 1936 | D | 2,923 | 2,583 | 5,546 | |
| 1932 | D | 3,072 | 2,106 | 5,225 | |
| 1928 | R | 2,245 | 2,450 | 4,722 | |
| 1924 | D | 2,669 | 2,470 | 5,281 | |
| 1920 | R | 2,443 | 2,747 | 5,255 | |
| 1916 | D | 1,549 | 1,534 | 3,135 | |
| 1912 | D | 1,440 | 975 | 3,020 | |
| 1908 | D | 1,733 | 1,667 | 3,448 | |
| 1904 | R | 1,574 | 1,809 | 3,465 | |
| 1900 | R | 1,660 | 1,712 | 3,431 | |
| 1896 | D | 1,719 | 1,384 | 3,119 | |
| 1892 | D | 1,391 | 1,283 | 2,913 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Martin County's heavily rural, forested terrain and small population have long anchored it among Indiana's most one-sided presidential jurisdictions, with the 2024 margin exceeding 60 points in the Republican column.
The Republican margin in Martin County reached its widest at sixty-one points in 2024. The margin in 2024 was sixty-one points, in line with the county's deep historical pattern.
Martin County's loyalty is rooted in its place. Median household income of $68,594, a 96% non-Hispanic-white share, and a population of 9,830 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 Hampshire County and Platte County.
