There are 11 US Post Offices in Caroline County serving a total of 34,181 residents equating to 3,107 residents per post office. It's estimated that approximately 54,557 packages are handled across the 11 county post offices annually. Caroline County is a rural county located in the U.S. state of Maryland on its Eastern Shore. As of the 2010 census, the population was 33,066. Its county seat is Denton. Caroline County is bordered by Queen Anne's County to the north, Talbot County to the west, Dorchester County to the south, Kent County, Delaware, to the east, and Sussex County, Delaware, to the southeast.