Income Inequality in Gilliam County, OR was 16.57790 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Gilliam County, OR reached a record high of 16.57790 in January of 2022 and a record low of 8.79308 in January of 2011. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Gilliam County, OR - last updated from the United States Federal Reserve on May of 2024.