Resident Population in Southampton County, VA was 17.97500 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Southampton County, VA reached a record high of 19.10000 in January of 1978 and a record low of 17.03500 in January of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Southampton County, VA - last updated from the United States Federal Reserve on May of 2024.