Eastland is a city in Eastland County, Texas, United States. The population was 3,769 at the 2000 census. It is the county seat of Eastland County. During the 1920s, Eastland, like nearby Cisco, Ranger, and Desdemona, were petroleum boomtowns. Eastland is known for the legend of Old Rip, a horned toad that lived many years sealed in the cornerstone of the previous Eastland courthouse built in 1897.