Income Inequality in McPherson County, KS was 10.49541 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in McPherson County, KS reached a record high of 10.87729 in January of 2018 and a record low of 8.72144 in January of 2015. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in McPherson County, KS - last updated from the United States Federal Reserve on May of 2024.