Income Inequality in Oliver County, ND was 8.82051 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Oliver County, ND reached a record high of 11.99116 in January of 2013 and a record low of 8.03305 in January of 2021. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Oliver County, ND - last updated from the United States Federal Reserve on May of 2024.