All-Transactions House Price Index for Sweet Grass County, MT was 257.88000 Index 2000=100 in January of 2022, according to the United States Federal Reserve. Historically, All-Transactions House Price Index for Sweet Grass County, MT reached a record high of 257.88000 in January of 2022 and a record low of 82.57000 in January of 1998. Trading Economics provides the current actual value, an historical data chart and related indicators for All-Transactions House Price Index for Sweet Grass County, MT - last updated from the United States Federal Reserve on May of 2024.