Mount Pleasant was founded May 11, 1848, to serve as county seat for Titus County, which was created by a legislative act on May 11, 1846. Until after the Civil War, Titus County also included the territory of present-day Franklin and Morris Counties. High waters along the creeks and the Sulphur River often halted travel in the early years. In the 21st century, Titus County comprises the Mount Pleasant Micropolitan Statistical Area, named for the county seat.