There are 11 US Post Offices in Navarro County serving a total of 43,356 residents equating to 3,941 residents per post office. It's estimated that approximately 69,201 packages are handled across the 11 county post offices annually. Navarro County is a county located in the U.S. state of Texas. As of the 2010 census, the population was 47,735. Its county seat is Corsicana. The county is named for Jos\u00e9 Antonio Navarro, a Tejano leader in the Texas Revolution who signed the Texas Declaration of Independence. Navarro County comprises the Coriscana, TX Micropolitan Statistical Area, which is also included in the Dallas-Fort Worth, TX Combined Statistical Area."