White to Non-White Racial Dissimilarity (5-year estimate) Index for Montague County, TX was 36.59% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Montague County, TX reached a record high of 36.88 in January of 2019 and a record low of 17.60 in January of 2015. 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 Montague County, TX - last updated from the United States Federal Reserve on May of 2024.