Warren Township High School, or Warren, is a public four-year high school located in Gurnee, a northern suburb of Chicago, in Lake County, in the U.S. state of Illinois. Due to the size of the student body, the school is split across two campuses: the O'Plaine Road Campus for freshmen and sophomores, and the Almond Road Campus for juniors and seniors. It is part of Warren Township High School District 121.HistorySince its formation in 1917, Warren Township High School District 121 has grown and evolved with its residents. From a one-story building on O'Plaine Road to two campuses located about 4.5 miles apart, Warren has seen graduating classes grow from about 25 students in the beginning to more than 1000 today. There are more than 4,500 students divided between two campuses, representing one comprehensive high school program for more than 61,000 residents from Gurnee, Beach Park, Gages Lake, Grandwood Park, Grayslake, Millburn, Old Mill Creek, Park City, Third Lake, Wadsworth, Waukegan, Wildwood and Lake Villa.The first high school was erected in 1917. The one-floor school first opened in the fall of 1918 with 57 pupils in attendance. Between the years 1920 and 1924, a Vocational Agriculture Building and Farm Shop (separate from the school) were constructed. In 1926, a second floor and gymnasium were added to the 1917 structure. Additions to this structure were also made in 1951, 1956, 1960, 1968, and 1974.On December 20, 1984 the high school building was destroyed by a fire. All students and staff moved to the Lake Forest West Campus where Warren Township High School existed from January 1985 to June 1987. Students and staff returned to Gurnee in August 1987 after the high school was rebuilt on the same site.
