| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 384,501 | 426,626 | 823,312 | |
| 2020 | D | 411,567 | 409,741 | 834,697 | |
| 2016 | R | 288,392 | 345,921 | 668,514 | |
| 2012 | R | 253,071 | 348,920 | 610,890 | |
| 2008 | R | 274,880 | 348,420 | 628,553 | |
| 2004 | R | 207,286 | 349,462 | 560,141 | |
| 2000 | R | 173,758 | 286,921 | 472,389 | |
| 1996 | R | 170,431 | 208,312 | 409,644 | |
| 1992 | R | 156,230 | 183,387 | 471,396 | |
| 1988 | R | 151,310 | 242,660 | 396,237 | |
| 1984 | R | 120,147 | 248,050 | 368,862 | |
| 1980 | R | 121,068 | 173,466 | 305,066 | |
| 1976 | R | 122,287 | 124,433 | 248,631 | |
| 1972 | R | 69,187 | 151,596 | 221,138 | |
| 1968 | R | 79,705 | 81,786 | 190,747 | |
| 1964 | D | 97,092 | 56,593 | 154,158 | |
| 1960 | R | 59,385 | 72,813 | 132,986 | |
| 1956 | R | 43,922 | 66,329 | 111,197 | |
| 1952 | R | 45,968 | 63,680 | 109,842 | |
| 1948 | D | 36,325 | 17,157 | 60,739 | |
| 1944 | D | 36,791 | 4,113 | 51,065 | |
| 1940 | D | 36,062 | 7,474 | 43,589 | |
| 1936 | D | 29,791 | 3,781 | 33,762 | |
| 1932 | D | 27,836 | 5,251 | 33,513 | |
| 1928 | R | 9,208 | 20,481 | 29,689 | |
| 1924 | D | 13,673 | 5,859 | 22,151 | |
| 1920 | D | 12,431 | 3,486 | 17,108 | |
| 1916 | D | 10,269 | 1,550 | 12,213 | |
| 1912 | D | 7,222 | 548 | 8,939 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Home to Fort Worth and a fast-growing suburban population, Tarrant County has narrowed its Republican presidential margin from double digits a decade ago to 5.1 points in 2024, reflecting demographic shifts common to large Texas metros.
The county's recent history is a story of close margins. The Democratic margin reached seventy-seven points in 1936; the Republican margin reached thirty-eight points in 1928. Most other elections have been decided by single-digit points.
Tarrant County's demographics — a population of 2,167,390, a 48% non-Hispanic-white share, a median household income of $84,207 — situate the county close to national averages on several dimensions. The county's voting pattern over the last decade is most similar to that of Denton County and Placer County.
