White to Non-White Racial Dissimilarity (5-year estimate) Index for McNairy County, TN was 39.63% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for McNairy County, TN reached a record high of 39.63 in January of 2022 and a record low of 12.31 in January of 2018. 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 McNairy County, TN - last updated from the United States Federal Reserve on May of 2024.