There are 6 US Post Offices in Crockett County serving a total of 14,808 residents equating to 2,468 residents per post office. It's estimated that approximately 23,635 packages are handled across the 6 county post offices annually. Crockett County is a county located in the U.S. state of Tennessee. As of the 2010 census, the population was 14,586. Its county seat is Alamo. Crockett County is included in the Jackson, TN Metropolitan Statistical Area."