Unemployment Rate in Prince William County, VA was 3.20% in April of 2026, according to the United States Federal Reserve. Historically, Unemployment Rate in Prince William County, VA reached a record high of 11.10 in April of 2020 and a record low of 1.40 in December of 2000. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Prince William County, VA - last updated from the United States Federal Reserve on June of 2026.