Leander High School performed excellent to earn a State accountability rating of A (90-100) based on three domains: student achievement, school progress and closing the gaps. Scores are scaled from 0 to 100 to align with letter grades. The school scored 92 in student achievement, 79 in school progress and 85 in closing performance gaps. It scored 90 overall in post-secondary readiness, a broad term that refers to student preparedness to undertake multiple pathways after graduation, or specifically, their preparedness for college education.

On the other hand, Glenn High School earned a State accountability rating of B. The school posted 83 in student achievement, 73 in school progress, 92 in closing performance gaps and 86 overall in post-secondary readiness.

A distinction designation acknowledges districts and campuses for outstanding achievement based on the outcomes of several performance indicators. Distinction designations are awarded for achievement in several areas and are based on performance relative to a group of campuses of similar type, size, grade span, and student demographics.

Distinction Designations for Leander High School and Glenn High School are not applicable as neither one earned a recognition for outstanding achievement in seven categories.

Based on Racial/Ethnic Groups, Whites or Caucasians comprise the biggest group at Leander High School. They make up for 46.06% of student population, followed by Hispanics (32.07%), Asians (10.38%), Two or More Races (6.24%), African Americans (4.60%) and Native Americans (0.56%).

The student population at Glenn High School is also predominantly by Whites or Caucasians at 38.59%, followed by Hispanics (37.50%), Asians (8.70%), African Americans (8.05%), Two or More Races (6.47%) and Native Americans (0.35%).

Based on household incomes, the Leander High School’s economically disadvantaged students is slightly lower at 19.39% compared to 23.52% at Glenn High School.

In terms of Limited English Proficiency (LEP), a term used in the United States that refers to a person who is not fluent in the English Language, mainly because it is not their native language, Leander High School has a slightly higher number of English Language Learners comprising 10.38% of its student population compared to 10.08% at Glenn High School.

Leander High School’s bilingual students comprise 10.28%, gifted and talented students, 20.19%, while 15.68% are in the special education program. Glenn High School bilingual students comprise 9.78%, gifted and talented students, 14.08%, and 15.91% are in the special education program.

Leander High School's 148 teachers have been working at the campus for an average of 8.8 years with individual teaching experience averaging nearly 14.5 years. Glenn High School's 142 teachers have been working at the campus for an average of 6.9 years with individual teaching experience averaging close to 13.4 years.

Of its teaching staff, Leander High School has 13 teachers serving the school for over 30 years, has 27 teachers serving the school for 20-30 years, 42 teachers have worked for 11-20 years, 29 teachers have worked for 6-10 years, while 35 teachers have been serving the school for over 1-5 years, including two beginning teachers. Glenn High School has nine teachers serving the school for over 30 years, has 13 teachers serving the school for 20-30 years, 48 teachers have worked for 11-20 years, 34 teachers have worked for 6-10 years, while 35 teachers have been serving the school for over 1-5 years, including three beginning teachers.

In both schools, female teachers outnumber the male teachers. Leander High School employs 89 female teachers and 58 male teachers. Of its teaching staff, 36 special education teachers are being assisted by 22 teachers aides or paraprofessionals. The school also employs six staff members in the school administration department and nine more working as school support staff.

On the other hand, Glenn High School employs 85 female teachers and 56 male teachers. Of its teaching staff, 32 special education teachers are being assisted by 17 teachers aides or paraprofessionals. The school also employs eight staff members in the school administration department and eight more working as school support staff.