Resident Population in Cumberland County, VA was 9.87800 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Cumberland County, VA reached a record high of 10.02800 in January of 2010 and a record low of 6.17900 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Cumberland County, VA - last updated from the United States Federal Reserve on May of 2024.