| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 242,385 | 269,447 | 516,981 | |
| 2020 | D | 277,450 | 276,209 | 559,715 | |
| 2016 | R | 233,701 | 239,201 | 492,403 | |
| 2012 | D | 239,104 | 213,258 | 457,702 | |
| 2008 | D | 248,299 | 210,066 | 463,282 | |
| 2004 | R | 225,460 | 225,686 | 455,357 | |
| 2000 | D | 200,657 | 184,849 | 398,526 | |
| 1996 | D | 184,748 | 152,155 | 376,272 | |
| 1992 | D | 160,528 | 159,121 | 422,851 | |
| 1988 | R | 152,420 | 211,049 | 365,370 | |
| 1984 | R | 128,574 | 240,612 | 369,249 | |
| 1980 | R | 138,428 | 185,728 | 345,003 | |
| 1976 | R | 141,879 | 150,003 | 295,569 | |
| 1972 | R | 77,197 | 179,541 | 257,116 | |
| 1968 | R | 68,209 | 109,235 | 211,258 | |
| 1964 | D | 98,381 | 80,414 | 178,795 | |
| 1960 | R | 58,054 | 101,779 | 159,833 | |
| 1956 | R | 28,113 | 74,314 | 102,427 | |
| 1952 | R | 22,365 | 55,691 | 78,056 | |
| 1948 | R | 15,724 | 24,900 | 44,524 | |
| 1944 | D | 19,574 | 14,340 | 33,914 | |
| 1940 | D | 18,941 | 13,327 | 32,268 | |
| 1936 | D | 12,072 | 8,183 | 20,255 | |
| 1932 | D | 9,670 | 7,024 | 16,694 | |
| 1928 | R | 3,439 | 10,545 | 14,151 | |
| 1924 | R | 2,633 | 2,872 | 6,043 | |
| 1920 | D | 2,848 | 2,529 | 5,819 | |
| 1916 | D | 1,503 | 555 | 2,428 | |
| 1912 | D | 853 | 87 | 1,418 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Pinellas County, home to St. Petersburg and Clearwater, delivered margins within 5 points of the national result in four consecutive presidential cycles before moving to R+5.2 in 2024, reflecting broader suburban realignment along Florida's Gulf Coast.
The Democratic margin in Pinellas County has rarely exceeded fifty-four points in modern history; the Republican margin has rarely exceeded fifty points. 2024 delivered the county to the Republican candidate by five points.
Pinellas County's demographics resemble the country more than they resemble most counties. A 74% non-Hispanic-white share, a 12% poverty rate, and a median household income of $72,646 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of St. Lucie County and Montgomery County.
