Wylie East High School opened for the 2007–2008 school year, serving only ninth grade students. District residents were asked to present suggestions at board meetings in late 2007 on whether to pursue multiple high schools, which the district voted in favor of in January 2008. Wylie East then began the 2009–2010 school year serving ninth and tenth grade students, and the Class of 2012 became the first class to graduate. The Class of 2011 (the school's first class) went on to graduate at
Wylie High School. Due to a $21 million bond passed in May 2012, the school underwent renovations and additions worth $18 million, making Wylie East the largest campus in Wylie ISD. These renovations added career and technology classrooms, science classrooms, 500 parking spaces, a field house, a band hall, and two gymnasiums. The renovations were completed in 2022. Starting in the 2026-2027 school year, Wylie East will now have two new schools (one intermediate, one junior high) in its feeder pattern. Together with Harrison Intermediate and Burnett Junior High, the new Hampton Intermediate and Parker Junior High Schools will cleanly feed into Wylie East. McMillan Junior High, which, since its opening, had to evenly divide its 8th grade class between Wylie High and Wylie East, will now exclusively feed into Wylie High School following this new pattern. Each year the graduating class donates something significant to the school, from park benches, to a decorative rock logo, to a steel raider statue. These items are proudly displayed in front of the school to remember each graduating class. ==Athletics==