White to Non-White Racial Dissimilarity (5-year estimate) Index for San Patricio County, TX was 30.96% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for San Patricio County, TX reached a record high of 38.21 in January of 2009 and a record low of 29.39 in January of 2021. 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 Patricio County, TX - last updated from the United States Federal Reserve on May of 2024.