Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The city of Dover is the capital and second largest city in the U.S. state of Delaware. It is also the county seat of Kent County, and the principal city of the Dover, Delaware Metropolitan Statistical Area which encompasses all of Kent County. It is located on the St. Jones River in the Delaware River coastal plain. It was named by William Penn for Dover in Kent, England. As of 2007, the city had an estimated population of 35,811.