There are 16 US Post Offices in Kent County serving a total of 122,611 residents equating to 7,663 residents per post office. It's estimated that approximately 195,701 packages are handled across the 16 county post offices annually. Kent County is a county located in the central part of the U.S. state of Delaware. As of the 2010 census, the population was 162,310. The county seat is Dover, the state capital. It is named for Kent, an English county. Kent County comprises the Dover, DE Metropolitan Statistical Area, which is included in the Philadelphia-Reading-Camden, PA-NJ-DE-MD Combined Statistical Area.