There are 9 US Post Offices in Lee County serving a total of 23,699 residents equating to 2,633 residents per post office. It's estimated that approximately 37,826 packages are handled across the 9 county post offices annually. Lee County is the westernmost county in the U.S. Commonwealth of Virginia. As of the 2015 estimate, the population was 24,742. Its county seat is Jonesville."