Income Inequality in Frederick County, MD was 10.06918 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Frederick County, MD reached a record high of 10.65160 in January of 2018 and a record low of 8.69325 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Frederick County, MD - last updated from the United States Federal Reserve on May of 2024.