All-Transactions House Price Index for Union County, SD was 231.79000 Index 2000=100 in January of 2023, according to the United States Federal Reserve. Historically, All-Transactions House Price Index for Union County, SD reached a record high of 231.79000 in January of 2023 and a record low of 67.11000 in January of 1992. Trading Economics provides the current actual value, an historical data chart and related indicators for All-Transactions House Price Index for Union County, SD - last updated from the United States Federal Reserve on May of 2024.