Hawthorn Woods is a village in Fremont and Ela townships in Lake County, Illinois, United States. Per the 2020 census, the population was 9,062. The village is located approximately 40 miles northwest of downtown Chicago. Hawthorn Woods was officially incorporated in 1958. Major transportation arteries include Midlothian Road, Old McHenry Road, Algonquin Road, Half Day Road, and the Elgin, Joliet and Eastern Railway.