Housing Inventory: Average Listing Price in Lake County, IL was 792012.00000 U.S. $ in March of 2026, according to the United States Federal Reserve. Historically, Housing Inventory: Average Listing Price in Lake County, IL reached a record high of 896805.00000 in May of 2024 and a record low of 536750.00000 in November of 2019. Trading Economics provides the current actual value, an historical data chart and related indicators for Housing Inventory: Average Listing Price in Lake County, IL - last updated from the United States Federal Reserve on May of 2026.