All-Transactions House Price Index for Illinois was 478.58000 Index 1980 Q1=100 in October of 2023, according to the United States Federal Reserve. Historically, All-Transactions House Price Index for Illinois reached a record high of 479.38000 in July of 2023 and a record low of 62.24000 in April of 1975. Trading Economics provides the current actual value, an historical data chart and related indicators for All-Transactions House Price Index for Illinois - last updated from the United States Federal Reserve on March of 2024.