Income Inequality in Billings County, ND was 11.85018 Ratio in January of 2024, according to the United States Federal Reserve. Historically, Income Inequality in Billings County, ND reached a record high of 19.14346 in January of 2014 and a record low of 9.63809 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Billings County, ND - last updated from the United States Federal Reserve on April of 2026.