| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 136,848 | 209,030 | 348,883 | |
| 2020 | R | 145,049 | 194,586 | 343,256 | |
| 2016 | R | 117,433 | 157,430 | 284,314 | |
| 2012 | R | 114,622 | 131,577 | 248,683 | |
| 2008 | R | 113,865 | 128,878 | 244,833 | |
| 2004 | R | 86,009 | 123,559 | 210,830 | |
| 2000 | R | 75,207 | 90,310 | 168,629 | |
| 1996 | R | 66,747 | 67,962 | 150,173 | |
| 1992 | R | 51,450 | 65,963 | 145,900 | |
| 1988 | R | 38,249 | 77,104 | 116,040 | |
| 1984 | R | 35,516 | 84,246 | 119,784 | |
| 1980 | R | 43,327 | 59,651 | 106,315 | |
| 1976 | D | 47,286 | 44,238 | 92,706 | |
| 1972 | R | 16,419 | 60,748 | 77,460 | |
| 1968 | R | 15,898 | 27,839 | 75,277 | |
| 1964 | R | 29,355 | 35,906 | 65,261 | |
| 1960 | R | 23,546 | 31,618 | 55,164 | |
| 1956 | R | 18,626 | 23,682 | 42,308 | |
| 1952 | R | 19,556 | 20,874 | 40,430 | |
| 1948 | D | 12,034 | 7,692 | 22,892 | |
| 1944 | D | 13,152 | 5,150 | 18,302 | |
| 1940 | D | 17,690 | 5,564 | 23,254 | |
| 1936 | D | 10,441 | 4,164 | 14,605 | |
| 1932 | D | 9,463 | 3,490 | 12,953 | |
| 1928 | R | 4,576 | 7,460 | 12,386 | |
| 1924 | D | 3,070 | 1,530 | 5,296 | |
| 1920 | D | 3,918 | 1,782 | 5,949 | |
| 1916 | D | 2,574 | 578 | 3,381 | |
| 1912 | D | 1,520 | 106 | 2,128 | |
| 1908 | D | 1,251 | 290 | 1,797 | |
| 1904 | D | 869 | 125 | 1,067 | |
| 1900 | D | 983 | 133 | 1,235 | |
| 1896 | D | 1,155 | 279 | 1,515 | |
| 1892 | D | 869 | 0 | 1,061 | |
| 1888 | — | — | — | — | |
| 1884 | D | 755 | 62 | 817 | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Polk sits between Tampa and Orlando but votes more like rural Florida, with its mix of agricultural towns, phosphate industry workers, and fast-growing exurban subdivisions producing a 20-point Republican margin in 2024.
The shift began with civil rights. 1980 marked the realignment in Polk County, by a fifteen points margin. The Republican margin reached its widest at fifty-seven points in 1972. The 2024 margin was twenty-one points.
The political shift has tracked, in Polk County, the political shift of the South more broadly. A 56% non-Hispanic-white share, a median household income of $65,978, and a 15% poverty rate describe the demographic context. The county's voting pattern over the last decade is most similar to that of Brevard County and Manatee County.
