There are 4 US Post Offices in Clay County serving a total of 13,253 residents equating to 3,313 residents per post office. It's estimated that approximately 21,153 packages are handled across the 4 county post offices annually. Clay County is a county of the U.S. state of Alabama. As of the 2010 census the population was 13,932. Its county seat is Ashland. Its name is in honor of Henry Clay, famous American statesman, member of the United States Senate from Kentucky and United States Secretary of State in the 19th century. It was the last dry county in Alabama with no wet cities within its boundaries, until a vote on March 1, 2016 approved the sale of alcohol in Lineville and Ashland."