All-Transactions House Price Index for Williamson County, TX was 324.98000 Index 2000=100 in January of 2023, according to the United States Federal Reserve. Historically, All-Transactions House Price Index for Williamson County, TX reached a record high of 339.47000 in January of 2022 and a record low of 27.48000 in January of 1975. Trading Economics provides the current actual value, an historical data chart and related indicators for All-Transactions House Price Index for Williamson County, TX - last updated from the United States Federal Reserve on May of 2024.