There are 8 US Post Offices in Eastland County serving a total of 19,532 residents equating to 2,442 residents per post office. It's estimated that approximately 31,175 packages are handled across the 8 county post offices annually. Eastland County is a county located in West Central Texas. As of the 2010 census, its population was 18,583. The county seat is Eastland. The county was founded in 1858 and later organized in 1873. It is named for William Mosby Eastland, a soldier during the Texas Revolution and the only officer to die as a result of the so-called \"Black Bean executions\" of the ill-fated Mier Expedition. Two Eastland County communities, Cisco and Ranger, have junior colleges."