White to Non-White Racial Dissimilarity (5-year estimate) Index for San Jacinto County, TX was 24.23% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for San Jacinto County, TX reached a record high of 24.23 in January of 2022 and a record low of 7.61 in January of 2017. 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 San Jacinto County, TX - last updated from the United States Federal Reserve on May of 2024.