White to Non-White Racial Dissimilarity (5-year estimate) Index for Linn County, IA was 30.99% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Linn County, IA reached a record high of 33.21 in January of 2021 and a record low of 27.83 in January of 2016. 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 Linn County, IA - last updated from the United States Federal Reserve on May of 2024.