There are 5 US Post Offices in Lee County serving a total of 16,227 residents equating to 3,245 residents per post office. It's estimated that approximately 25,900 packages are handled across the 5 county post offices annually. Lee County is a county located in the U.S. state of Texas. As of the 2010 census, its population was 16,612. Its county seat is Giddings. The county is named for Robert E. Lee, the commander of the Confederate Army of Northern Virginia."