Income Inequality in Jefferson Parish, LA was 17.14348 Ratio in January of 2023, according to the United States Federal Reserve. Historically, Income Inequality in Jefferson Parish, LA reached a record high of 17.14348 in January of 2023 and a record low of 13.72062 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Jefferson Parish, LA - last updated from the United States Federal Reserve on September of 2025.