 The Leithton Subdivision of the Canadian National Railway (Formerly the Western Subdivision of the Elgin, Joliet and Eastern Railway) runs through Knollwood, crossing Route 43 at grade.This line was built in the late 1880s as part of the short-lived Waukegan and Southwestern Railway, before it was acquired by the Elgin, Joliet and Eastern in 1891.Knollwood residents are served by Lake Bluff School District 65, and Lake Forest High School District 115.