All-Transactions House Price Index for Warren County, NJ was 204.85000 Index 2000=100 in January of 2023, according to the United States Federal Reserve. Historically, All-Transactions House Price Index for Warren County, NJ reached a record high of 204.85000 in January of 2023 and a record low of 23.77000 in January of 1976. Trading Economics provides the current actual value, an historical data chart and related indicators for All-Transactions House Price Index for Warren County, NJ - last updated from the United States Federal Reserve on May of 2024.