All-Transactions House Price Index for Mason County, WA was 320.40000 Index 2000=100 in January of 2023, according to the United States Federal Reserve. Historically, All-Transactions House Price Index for Mason County, WA reached a record high of 320.40000 in January of 2023 and a record low of 48.99000 in January of 1984. Trading Economics provides the current actual value, an historical data chart and related indicators for All-Transactions House Price Index for Mason County, WA - last updated from the United States Federal Reserve on May of 2024.