Sussex County is located in the southern part of the U.S. state of Delaware, on the Delmarva Peninsula. As of the 2020 census, the population was 237,378, making it the state's second most populated county only behind New Castle and ahead of Kent. The county seat is Georgetown.

Kent County is a county located in the central part of the U.S. state of Delaware. As of the 2020 census, the population was 181,851, making it the least populous county in Delaware. The county seat is Dover, the state capital of Delaware. It is named for Kent, an English county.