suburban village in Cook County and Lake County, Illinois, United States. The population was 10,327 at thecensus. Located. Articles archive from October 1, Daily Herald Daily Herald is suburban Chicago s largest daily newspaper. Daily Herald provides a local perspective with local content such Avon-Lake as the northwest Cocoa-Beach suburbs most. Chicago Weather Flooding, power outage force evacuation. Storms dropped several inches of rain on the north suburbs, causing major flooding, flight cancellations and the evacuation of Northwestern Lake Forest Hospital.