Warren Township High School
| Warren Township High School (WTHS) | |
|---|---|
| Address | |
Almond Campus: 34090 Almond Road O'Plaine Campus: 500 N. O'Plaine Road , , 60031 United States | |
| Coordinates | 42°22′02″N 87°54′55″W / 42.3672440°N 87.9153525°W |
| Information | |
| School type | Public high school |
| Founded | 1917 |
| School district | Warren Township High School District 121 (WTHS) |
| CEEB code | 142175 |
| Principal | O'Plaine Campus: Michele Bertola Almond Campus: Rob Parrott |
| Faculty | 296 |
| Grades | 9-12 |
| Enrollment | 3,687 (2023-2024) |
| Student to teacher ratio | 20:1 |
| Language | English |
| Campuses | Two (O'Plaine and Almond) |
| Color(s) | Royal blue and gold |
| Athletics conference | Illinois North Suburban |
| Mascot | Blue Devil |
| Team name | Blue Devils |
| Website | www.d121.org |
Warren Township High School (WTHS), or Warren, is a public four-year high school located in Gurnee, a northern suburb of Chicago, in Lake County, in Illinois. Because of 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.