All-Transactions House Price Index for Montana was 817.53000 Index 1980 Q1=100 in January of 2026, according to the United States Federal Reserve. Historically, All-Transactions House Price Index for Montana reached a record high of 817.53000 in January of 2026 and a record low of 53.86000 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 Montana - last updated from the United States Federal Reserve on June of 2026.