Resident Population in Sussex County, VA was 10.75300 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Sussex County, VA reached a record high of 12.55600 in January of 1999 and a record low of 10.13400 in January of 1994. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Sussex County, VA - last updated from the United States Federal Reserve on April of 2026.