Sussex County is a rural county located in the southeast of the Commonwealth of Virginia. As of the 2020 census, the population was 10,829. Its county seat is Sussex. It was formed in 1754 from Surry County. The county is named after the county of Sussex, England.

Surry County is a county in the southeastern part of the Commonwealth of Virginia. As of the 2020 census, the population was 6,561.