Garland 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 85 in student achievement, 89 in school progress and 93 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, N Garland High School also performed excellent to earn a State accountability rating of A. The school posted 92 in student achievement, 94 in school progress, 94 in closing performance gaps and 94 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.

It is in this area where the two schools differ. Garland High School’s five out of seven distinctions are in Reading/English Language Arts (ELA), Mathematics, Science, Social Studies and 25% closing performance gaps. N Garland High School's seven out of seven distinctions are in Reading/English Language Arts (ELA), Mathematics, Science, Social Studies, post-secondary, with 25% student progress and 25% closing performance gaps.

Based on Racial/Ethnic Groups, Hispanics comprise the biggest group at Garland High School. They make up for 59.28% of student population, followed by Whites or Caucasians (13.64%), African Americans (13.13%), Asians (6.91%), Native Americans (3.93%) and Two or More Races (3.02%).

The student population at N Garland High School is also predominantly by Hispanics at 49.38%, followed by Asians (22.20%), African Americans (12.07%), Whites or Caucasians (9.61%), Native Americans (4.34%) and Two or More Races (2.26%).

Based on household incomes, the Garland High School’s economically disadvantaged students is lower at 69.21% compared to 71.07% at N Garland 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, Garland High School has 832 English Language Learners or ELLS or about 35.92% of student population. N Garland High School has significantly more ELLs at 944 or about 32.28% of student population.

Garland High School’s bilingual students comprise 34.80%, gifted and talented students, 23.75%, while 7.47% are in the special education program. N Garland High School bilingual students comprise 30.98%, gifted and talented students, 19.80%, and 5.30% are in the special education program.

Garland High School's 157 teachers have been working at the campus for an average of 8.4 years with individual teaching experience averaging nearly 12.2 years. N Garland High School's 167 teachers have been working at the campus for an average of 7.2 years with individual teaching experience averaging close to 10.9 years.

Of its teaching staff, Garland High School has three teachers serving the school for over 30 years, has 31 teachers serving the school for 20-30 years, 54 teachers have worked for 11-20 years, 32 teachers have worked for 6-10 years, while 30 teachers have been serving the school for over 1-5 years, including eight beginning teachers. N Garland High School has four teachers serving the school for over 30 years, has 25 teachers serving the school for 20-30 years, 49 teachers have worked for 11-20 years, 34 teachers have worked for 6-10 years, while 38 teachers have been serving the school for over 1-5 years, including 18 beginning teachers.

In both schools, female teachers outnumber the male teachers. Garland High School employs 81 female teachers and 76 male teachers. Of its teaching staff, nine special education teachers are being assisted by 15 teachers aides or paraprofessionals. The school also employs six staff members in the school administration department and 16 more working as school support staff.

On the other hand, N Garland High School employs 90 female teachers and 77 male teachers. Of its teaching staff, nine special education teachers are being assisted by 11 teachers aides or paraprofessionals. The school also employs seven staff members in the school administration department and 17 more working as school support staff.