Income Inequality in Northumberland County, VA was 20.52494 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Northumberland County, VA reached a record high of 20.52494 in January of 2022 and a record low of 9.83037 in January of 2012. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Northumberland County, VA - last updated from the United States Federal Reserve on May of 2024.