Lake Forest Academy is a co-educational college preparatory school for boarding and day students in grades 9 through 12. The school is located on the North Shore in Lake Forest, Illinois, United States, about 30 miles north of Chicago. As of the 2019–2020 school year, the school enrolled 435 students, with the students coming from 13 states and 35 countries. This school is among the most selective boarding schools in the United States. The current head of school is Christopher O. Tennyson. The school is accredited by the National Association of Independent Schools (NAIS), Independent Schools Association of the Central States (ISACS), and the Secondary School Admission Test Board (SSATB).

Lake Forest is a city located in Lake County, Illinois, United States. Per the 2020 census, the population was 19,367. The city is along the shore of Lake Michigan, and is a part of the Chicago metropolitan area and the North Shore. Lake Forest was founded with Lake Forest College and was laid out as a town in 1857, a stop for travelers making their way south to Chicago. The Lake Forest City Hall, designed by Charles Sumner Frost, was completed in 1898. It originally housed the fire department, the Lake Forest Library, and city offices.