White to Non-White Racial Dissimilarity (5-year estimate) Index for Marion County, TX was 29.30% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Marion County, TX reached a record high of 41.01 in January of 2021 and a record low of 15.49 in January of 2012. Trading Economics provides the current actual value, an historical data chart and related indicators for White to Non-White Racial Dissimilarity (5-year estimate) Index for Marion County, TX - last updated from the United States Federal Reserve on May of 2024.