Per Capita Personal Income in Knox County, IL was 46991.00000 $ in January of 2022, according to the United States Federal Reserve. Historically, Per Capita Personal Income in Knox County, IL reached a record high of 47519.00000 in January of 2021 and a record low of 3642.00000 in January of 1969. Trading Economics provides the current actual value, an historical data chart and related indicators for Per Capita Personal Income in Knox County, IL - last updated from the United States Federal Reserve on May of 2024.