Mumford is an unincorporated community in Robertson County, Texas, United States. It is part of the Bryan-College Station metropolitan area. Its elevation is 259 feet (79 m), and it is located at 30°44′4″N 96°33′54″W﻿ / ﻿30.73444°N 96.565°W﻿ / 30.73444; -96.565 (30.7343621, -96.5649690). Although Mumford is unincorporated, it has a post office, with the ZIP code of 77867; the ZCTA for ZIP Code 77867 had a population of 176 at the 2000 census. Located on the eastern bank of the Brazos River, the community is named for an early resident of the area, Jesse Mumford, who established a ferry over the Brazos in the vicinity in 1855. A post office was established in Mumford in 1878, and the community continued to expand through the rest of the nineteenth century. Its fortunes declined after a devastating flood in 1899, which destroyed most of the community; Mumford never attained its pre-flood prosperity. Some businesses remain in the community, which also includes a post office, an elementary school (part of the Mumford Independent School District), and a cemetery.