Resident Population in Northampton County, VA was 12.02100 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Northampton County, VA reached a record high of 15.40000 in January of 1978 and a record low of 11.78900 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Northampton County, VA - last updated from the United States Federal Reserve on May of 2024.