Income Inequality in Yamhill County, OR was 13.74207 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Yamhill County, OR reached a record high of 13.74207 in January of 2022 and a record low of 10.89866 in January of 2011. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Yamhill County, OR - last updated from the United States Federal Reserve on May of 2024.