There are 9 US Post Offices in Hanover County serving a total of 98,503 residents equating to 10,945 residents per post office. It's estimated that approximately 157,222 packages are handled across the 9 county post offices annually. Hanover County is located in the Commonwealth of Virginia. As of the 2010 census, the population was 99,863. Its county seat is Hanover Courthouse. Hanover County is included in the Greater Richmond Region."