Warrenton High School is a secondary school located in Warrenton in Warren County, Missouri. It is part of the Warren County R-3 School District. The current building was built in 1996. Prior to that period, the high school was housed in the current Black Hawk Middle School/Daniel Boone Building. Warrenton High School officially had 1006 students enrolled for the 2008-2009 academic year, according to the Missouri Department of Elementary and Secondary Education,.It was not until 2005 that the school was officially called "Warrenton High School" by the district. Prior to that time there was a very-often-brought-up (and sometimes heated) debate as to whether the school's official name was "Warrenton High School" or "Warren Co. R-3 High School." This confusion is still present, as MSHSAA officially calls all sports teams "Warren County." Following the tradition of students, however, district superintendent John Long decided to call the school "Warrenton High School" officially as of '05.Warrenton High School's colors are red and white (but its uniforms are often trimmed in black in accordance with prevailing trends, much to the chagrin of a small yet vocal minority of alumni and one faculty member). Its mascot is the Warrior. Prior to 1967, the school's colors were maroon and white. However, according to the story which is told, in 1967, the then-new basketball uniforms came in red and white instead, and the school voted to change its colors.
