The first Texas Legislature enacted a bill on March 30, 1846, creating Dallas County. According to archival records, the following persons have served as Dallas County Treasurer.
| Pauline Medrano | 2015 |
| Joe Wells | 2007-2014 |
| Lisa Hembry | 2003-2006 |
| Bill Melton | 1977-2002 |
| Warren G. Harding | 1951-1977 |
| Lester Manning | 1949-1950 |
| Tom Goforth | 1941-1948 |
| J. R. McFarland | 1934-1940 |
| Amanda Rankin | 1929-1933 |
| Ed Russell | 1925-1928 |
| S. S. Fitzhugh | 1921-1924 |
| Blanche Elliott | 1919-1920 |
| B. M. Bond | 1913-1919 |
| H. L. Erwin | 1908-1912 |
| K. Hall | 1901-1908 |
| Ed Prather | 1896-1900 |
| W. N. Coe | 1890-1896 |
| Henry H. Smith | 1884-1890 |
| J. T. Downes | 1883-1884 |
| J.M. Berryman | 1878-1882 |
| M. V. Cole | 1873-1878 |
| Henry Ball | 1870-1872 |
| A. J. Gauffe | 1868-1869 |
| James Sheppard | 1866-1868 |
| James P. Thomas | 1862-1866 |
| Ed W. Hunt | 1858-1862 |
| Robert J. West | 1855-1858 |
| A. D. Rice | 1852-1854 |
| J. B. McPherson | 1852 |
| Wesley Morgan | 1851 |
| Perry Dokan | 1851 |
| William M. Lenard | 1849-1851 |
| Charles G. Newton | 1847-1849 |
| James B. Bryan | 1846-1847 |
