| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 789 | 3,708 | 4,535 | |
| 2020 | R | 786 | 3,706 | 4,532 | |
| 2016 | R | 745 | 3,480 | 4,361 | |
| 2012 | R | 1,154 | 3,072 | 4,304 | |
| 2008 | R | 1,535 | 2,955 | 4,538 | |
| 2004 | R | 1,568 | 3,155 | 4,741 | |
| 2000 | R | 1,620 | 2,880 | 4,581 | |
| 1996 | D | 2,080 | 1,839 | 4,515 | |
| 1992 | D | 2,100 | 1,774 | 5,378 | |
| 1988 | R | 2,330 | 2,811 | 5,149 | |
| 1984 | R | 1,980 | 3,495 | 5,475 | |
| 1980 | R | 2,130 | 3,291 | 5,583 | |
| 1976 | D | 3,114 | 2,936 | 6,077 | |
| 1972 | R | 1,927 | 4,100 | 6,027 | |
| 1968 | R | 2,473 | 3,680 | 6,798 | |
| 1964 | D | 4,069 | 2,994 | 7,063 | |
| 1960 | R | 3,296 | 4,555 | 7,851 | |
| 1956 | R | 3,432 | 4,751 | 8,183 | |
| 1952 | R | 3,146 | 5,410 | 8,568 | |
| 1948 | R | 3,401 | 4,212 | 7,618 | |
| 1944 | R | 3,283 | 5,127 | 8,430 | |
| 1940 | R | 4,446 | 6,000 | 10,457 | |
| 1936 | R | 5,141 | 5,432 | 10,605 | |
| 1932 | D | 5,072 | 3,894 | 9,003 | |
| 1928 | R | 3,735 | 5,875 | 9,624 | |
| 1924 | R | 4,502 | 4,907 | 9,613 | |
| 1920 | R | 4,075 | 5,609 | 9,780 | |
| 1916 | R | 2,822 | 2,978 | 5,879 | |
| 1912 | D | 2,648 | 1,519 | 5,658 | |
| 1908 | R | 2,753 | 3,015 | 5,849 | |
| 1904 | R | 2,673 | 3,032 | 5,868 | |
| 1900 | D | 3,300 | 3,192 | 6,605 | |
| 1896 | D | 3,555 | 3,363 | 6,983 | |
| 1892 | D | 2,969 | 2,896 | 6,227 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Carroll County's 2024 presidential margin of R+64.5 reflects a broader shift in Missouri's agricultural heartland, where small-town and farming communities have moved sharply toward Republican candidates over the past decade.
The Republican margin in Carroll County reached its widest at sixty-four points in 2020. The margin in 2024 was sixty-four points, in line with the county's deep historical pattern.
Carroll County's loyalty is rooted in its place. Median household income of $62,154, a 94% non-Hispanic-white share, and a population of 8,411 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 Grundy County and Vernon County.
