| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 86,624 | 140,457 | 228,778 | |
| 2020 | R | 90,166 | 124,987 | 216,958 | |
| 2016 | R | 71,224 | 101,944 | 178,958 | |
| 2012 | R | 66,503 | 85,627 | 153,491 | |
| 2008 | R | 70,034 | 80,721 | 151,994 | |
| 2004 | R | 61,262 | 81,318 | 143,621 | |
| 2000 | R | 49,226 | 58,023 | 110,344 | |
| 1996 | R | 41,891 | 44,136 | 96,878 | |
| 1992 | R | 33,841 | 42,725 | 100,220 | |
| 1988 | R | 26,624 | 51,187 | 78,113 | |
| 1984 | R | 20,889 | 55,793 | 76,688 | |
| 1980 | R | 21,679 | 40,535 | 65,576 | |
| 1976 | R | 24,342 | 29,300 | 54,360 | |
| 1972 | R | 8,058 | 32,664 | 40,940 | |
| 1968 | R | 8,286 | 18,247 | 34,747 | |
| 1964 | R | 13,074 | 17,147 | 30,221 | |
| 1960 | R | 8,814 | 16,462 | 25,276 | |
| 1956 | R | 5,394 | 11,904 | 17,298 | |
| 1952 | R | 4,583 | 9,055 | 13,638 | |
| 1948 | R | 2,766 | 3,371 | 7,610 | |
| 1944 | D | 4,544 | 2,218 | 6,762 | |
| 1940 | D | 5,131 | 1,983 | 7,114 | |
| 1936 | D | 3,487 | 1,455 | 4,942 | |
| 1932 | D | 2,894 | 1,280 | 4,174 | |
| 1928 | R | 1,472 | 2,705 | 4,235 | |
| 1924 | D | 1,064 | 629 | 1,933 | |
| 1920 | D | 1,790 | 884 | 2,867 | |
| 1916 | D | 1,033 | 289 | 1,548 | |
| 1912 | D | 712 | 55 | 1,036 | |
| 1908 | D | 644 | 93 | 909 | |
| 1904 | D | 592 | 91 | 855 | |
| 1900 | D | 535 | 60 | 688 | |
| 1896 | D | 480 | 135 | 635 | |
| 1892 | D | 348 | 0 | 418 | |
| 1888 | — | — | — | — | |
| 1884 | D | 670 | 216 | 886 | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Manatee's R+23.5 margin in 2024 reflects a long migration of retirees and transplants from the Midwest and Northeast, gradually transforming what was once a more competitive coastal county into a reliably Republican stronghold.
The Republican margin in Manatee County reached its widest at sixty points in 1972. The margin in 2024 was twenty-four points, in line with the county's deep historical pattern.
Manatee County's loyalty is rooted in its place. Median household income of $78,457, a 72% non-Hispanic-white share, and a population of 429,792 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 Madison County and Brevard County.
