There are 8 US Post Offices in Houston County serving a total of 46,869 residents equating to 5,859 residents per post office. It's estimated that approximately 74,808 packages are handled across the 8 county post offices annually. Houston County is a county located in the southeastern corner of the U.S. state of Alabama. As of the 2010 census the population was 101,547. Its county seat is Dothan. Houston County is part of the Dothan, Alabama metropolitan area."