| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 2,495 | 9,354 | 12,073 | |
| 2020 | R | 2,552 | 9,499 | 12,267 | |
| 2016 | R | 2,306 | 8,528 | 11,332 | |
| 2012 | R | 3,460 | 7,096 | 10,805 | |
| 2008 | R | 4,954 | 6,267 | 11,395 | |
| 2004 | R | 3,333 | 7,361 | 10,783 | |
| 2000 | R | 3,605 | 6,393 | 10,158 | |
| 1996 | R | 3,605 | 4,858 | 9,915 | |
| 1992 | R | 3,306 | 4,696 | 10,164 | |
| 1988 | R | 3,724 | 5,852 | 9,629 | |
| 1984 | R | 3,707 | 6,957 | 10,725 | |
| 1980 | R | 4,363 | 6,980 | 11,812 | |
| 1976 | R | 5,433 | 5,674 | 11,265 | |
| 1972 | R | 3,742 | 7,146 | 10,937 | |
| 1968 | R | 3,956 | 5,743 | 11,298 | |
| 1964 | D | 6,528 | 5,412 | 12,026 | |
| 1960 | R | 5,342 | 7,434 | 12,834 | |
| 1956 | R | 5,720 | 7,302 | 13,061 | |
| 1952 | R | 6,078 | 7,118 | 13,351 | |
| 1948 | D | 5,965 | 5,654 | 11,905 | |
| 1944 | R | 5,721 | 6,688 | 12,553 | |
| 1940 | R | 7,255 | 7,768 | 15,114 | |
| 1936 | D | 8,235 | 6,335 | 14,683 | |
| 1932 | D | 8,151 | 5,343 | 13,818 | |
| 1928 | R | 5,358 | 7,103 | 12,641 | |
| 1924 | R | 5,349 | 5,955 | 12,189 | |
| 1920 | R | 5,612 | 6,129 | 12,716 | |
| 1916 | D | 3,435 | 3,102 | 7,244 | |
| 1912 | D | 3,297 | 1,494 | 7,307 | |
| 1908 | D | 4,204 | 3,766 | 8,601 | |
| 1904 | R | 3,565 | 4,005 | 8,342 | |
| 1900 | D | 4,114 | 3,873 | 8,399 | |
| 1896 | D | 4,482 | 3,823 | 8,393 | |
| 1892 | D | 3,558 | 3,105 | 7,256 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Clay County's R+56.9 margin in 2024 places it among Indiana's most Republican-leaning counties, reflecting a rural, working-class electorate that has shifted decisively rightward over the past two decades.
The Republican margin in Clay County reached its widest at fifty-seven points in 2024. The margin in 2024 was fifty-seven points, in line with the county's deep historical pattern.
Clay County's loyalty is rooted in its place. Median household income of $70,010, a 95% non-Hispanic-white share, and a population of 26,409 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 Owen County and Carroll County.
