Earth was established by William E. Halsell, who laid out the townsite in 1924. Originally Halsell named the town Fairlawn but in 1925 it was later renamed Earth when it was learned that there was already a town in Texas by the name of Fairlawn. To find a new name the townspeople sent in suggestions.
The name Earth, which was submitted by Ora Hume (O.H.) Reeves was agreed upon as the best name for the town.
Earth is a small town with a total area of 1.2 square miles and inhabited by a population of 1,109 people as of 2000.