As the school matured, the demographics of the students changed. By the 1999 Lee was very overcrowded, so many students had to use air conditioning units as chairs. Around that time period, half of a given 9th grade class would no longer be present in the class once it became a 12th grade class. Around 1999, students fought in the hallways daily. The opening of Westside High School in 2000 removed the last significant numbers of White and upper income students, causing the school to refocus itself to cater to its new population. By 2013 there were 1,416 students, with almost 33% being English learners and almost 80% being classified as low income.