| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 201,759 | 118,917 | 328,159 | |
| 2020 | D | 246,105 | 129,815 | 382,055 | |
| 2016 | D | 208,992 | 116,344 | 337,383 | |
| 2012 | D | 232,443 | 135,649 | 371,616 | |
| 2008 | D | 256,297 | 145,458 | 404,180 | |
| 2004 | D | 216,945 | 158,137 | 377,282 | |
| 2000 | D | 190,404 | 141,756 | 336,755 | |
| 1996 | D | 179,663 | 136,315 | 326,380 | |
| 1992 | D | 191,322 | 153,310 | 366,110 | |
| 1988 | R | 149,759 | 157,457 | 308,988 | |
| 1984 | R | 165,947 | 169,717 | 337,302 | |
| 1980 | D | 159,240 | 140,157 | 308,517 | |
| 1976 | D | 147,893 | 128,646 | 279,601 | |
| 1972 | R | 81,089 | 161,922 | 247,882 | |
| 1968 | D | 81,486 | 73,416 | 231,898 | |
| 1964 | D | 111,496 | 100,527 | 212,023 | |
| 1960 | R | 86,270 | 87,191 | 176,607 | |
| 1956 | R | 62,051 | 65,690 | 135,025 | |
| 1952 | D | 71,779 | 65,170 | 137,099 | |
| 1948 | D | 23,854 | 14,566 | 65,176 | |
| 1944 | D | 48,625 | 10,839 | 59,544 | |
| 1940 | D | 57,664 | 7,312 | 65,074 | |
| 1936 | D | 61,504 | 2,113 | 63,698 | |
| 1932 | D | 38,320 | 6,332 | 45,209 | |
| 1928 | D | 18,040 | 11,969 | 30,090 | |
| 1924 | D | 13,696 | 7,369 | 23,067 | |
| 1920 | D | 15,986 | 8,597 | 24,843 | |
| 1916 | D | 10,967 | 4,515 | 15,684 | |
| 1912 | D | 6,732 | 589 | 10,500 | |
| 1908 | D | 7,411 | 3,069 | 10,756 | |
| 1904 | D | 8,686 | 2,563 | 11,483 | |
| 1900 | D | 5,143 | 2,961 | 8,229 | |
| 1896 | D | 5,830 | 5,122 | 11,209 | |
| 1892 | D | 6,307 | 1,110 | 7,723 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Home to Memphis, Shelby County delivers some of the widest Democratic margins in Tennessee, driven by a majority-Black electorate and a dense urban core that consistently offsets Republican gains statewide.
The Democratic margin in Shelby County has been steady. It reached its modern peak at ninety-three points in 1936; the 2024 margin was twenty-five points, still in line with the county's long pattern.
Shelby County's political identity is inseparable from its demographic profile: a 34% non-Hispanic-white share, a median household income of $63,767, and the full diversity of a major metropolitan center. The county's voting pattern resembles other major urban centers most closely — Monterey County and Ingham County.
