Brennan High School

San Antonio, TX 78253

Phone: (210) 398-1250
Fax: (210) 645-3311
District: Northside Independent School District (NISD)

6

GreatSchools Rating

public • Grades 9,10,11,12 • 2965 students

Brennan High School, a public school located in San Antonio, TX, serves grades 9-12 in the Northside Independent School District (NISD).It has received a GreatSchools Rating of 6 out of 10, based on a variety of school quality measures.

Brennan High School is a public school located in San Antonio, TX. 2965 students attend Brennan High School.

School Ratings

Category Rating Details
Test Scores 7/10 The Test Score Rating examines how students at this school performed on standardized tests compared with other schools in the state. The Test Rating was created using 2025 State of Texas Assessments of Academic Readiness (STAAR) data from Texas Education Agency.
College Readiness 3/10 The College Readiness Rating uses this high school's graduation rates, college entrance exam participation and performance, or AP, IB, or Dual Enrollment participation to determine how well schools are preparing students for success in college and beyond. The College Readiness Rating was created using the following data from the 2021 Civil Rights Data Collection: percentage of students enrolled in IB, AP or Dual Enrollment classes in grades 9-12, using 2024 ACT participation data from Texas Education Agency, using 2024 SAT percent participation data from Texas Education Agency, using 2024 SAT percent college ready data from Texas Education Agency, using 2024 4-year high school graduation rate data from Texas Education Agency, using 2024 Average SAT score data from Texas Education Agency, using 2024 Average ACT score data from Texas Education Agency, using 2024 ACT percent college ready data from Texas Education Agency, and using 2025 demographic data from Texas Education Agency.
Student Growth 7/10 The Student Progress Rating measures whether students at this school are making academic progress over time based on student growth data provided by the Department of Education. Specifically, this rating looks at how much progress individual students have made on state assessments during the past year or more, how this performance aligns with expected progress based on a student growth model established by the state Department of Education, and how this school's growth data compares to other schools in the state. The Growth Rating was created using 2025 Percentage of students meeting growth target data from Texas Education Agency.

Posted: August 11, 2026

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Posted: August 11, 2026

Office staff is horrible they are rude and dismissive and act as if they hate their job!! It’s a major turn off no matter how good the school may or may not be! First experience with the school is always front office so you would think they would have better staff/ safety could be better and the kids are worried about fights and drugs more than school seems like!

Posted: May 13, 2026

I would not recommend William J Brennan High School based on my experience as a parent.
My daughter has an IEP, and I do not feel the school provided the communication, meetings, or support that should be expected for a student with documented educational needs. As a parent, I should not have to repeatedly seek answers or feel ignored when it comes to my child’s education and safety.
I also have serious concerns about the overall school environment and student safety. There have been ongoing concerns involving drugs and safety issues, and I do not feel families are being properly informed or reassured. Parents deserve transparency when there are serious concerns that may affect their children.
In addition, my interactions with the front office staff have been very disappointing. I felt dismissed, disrespected, and not treated like a partner in my child’s education. It often felt like the school was more concerned with appearances than addressing real concerns from parents and students.
I strongly encourage other parents to ask detailed questions before sending their child here, especially about IEP support, safety procedures, drug-related concerns, parent communication, and how the school responds when families raise concerns.
Student safety, respect for families, and proper support for students with IEPs should be a priority every day. There have been drug-related safety concerns, including an incident involving a student medical emergency/overdose in a bathroom. What concerned me even more was the lack of transparency and communication with families afterward. Parents deserve honesty and timely information when serious incidents happen on campus. NO GO SERIOUSLY.

Posted: May 13, 2026

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Posted: August 27, 2024

The complexities of the brennan high school system completely confuse me. It appears to have the most flawed structure I’ve ever seen. I think the school exhibits a significant amount of bias, whether it's influenced by ethnicity or personal choices. There was a worrying incident with my child where another student went through his bag, took his ID from his wallet, and then acted as if they had found it on the ground. Nevertheless, the school's security officer responded with indifference, suggesting we ignore it since only the ID was missing, not a credit card. The way the school deals with these situations is frustrating, and one would expect more diligent supervision in the classrooms to prevent bullying, theft, or other harmful situations. Sadly, most teachers there seem confused. The grading system is disorganized, with students receiving unfairly low grades due to teachers inconsistently entering accurate information. It is essential for teachers to be attentive during class. The educational system is discouraging, bombarding us with repetitive and unhelpful messages. The school appears to lack a focus on nurturing and preparing students for the future; it feels more like a raucous unsupervised gathering where children get lost in the shuffle.

Posted: August 27, 2024

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Posted: May 28, 2024

I went to Brennan High School. I loved every second of it! From the athletics to learning it was a great experience

Posted: May 28, 2024

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Posted: May 22, 2023

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Posted: May 22, 2023

The school is great in it's own ways

Posted: March 12, 2020

Posted: March 12, 2020

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Posted: March 12, 2020

Posted: March 12, 2020

Wonderful school! My son loves Brennan and all of his teachers. Great Communication! He says it has been the best experience of his life. He is graduating this year and it has been amazing for him.

Posted: February 19, 2020

Horrible experience all around. No parent communication unless it is a generic call that goes out in mass quantity with absolutely no quality

Posted: February 19, 2020

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Posted: October 29, 2019

Students are allowed turn in homework at anytime and receive credit. So there's no motivation to meet any homework due dates.

Posted: October 29, 2019

Though there are a few still willing to assist students, most are there for a paycheck and it shows.

Posted: October 29, 2019

Well you can say that character is built if your looking for a unprepared college bound kid. They succeed in building fictional characters for the world to embrace.

Posted: October 29, 2019

The students run Brennan HS. The administration talks a good game, but falls short on discipline and holding students accountable for their actions.

Posted: October 29, 2019

Three of my children have attended this school. Thank God they had a solid foundation before we moved here. They complained daily about the environment and were truly happy when they graduated. We've moved out of Brennan's zone and my son's last 2 yes of HS has been saved. He's so much happier at his new school with the structure and accountability that the administration shows.

Posted: October 4, 2018

Posted: October 4, 2018

Posted: October 4, 2018

Posted: October 4, 2018

Assistant Principal Francis is the worst administors I've ever come accrossed. Daughter bullied by him. Accusations made by him that even the principal said were false. This man needs not to be around kids period.

Posted: October 4, 2018

Posted: October 4, 2018

Some administrator's bully kids. Some teachers as well

Posted: October 4, 2018

Its the worst. I can't believe I believed when they told us people lie to get in the school. "Its a destination school"

Posted: June 4, 2018

I was fine with it even though I don’t feel very prepared for college. However when I look forward to my senior exemptions and go to class all year and then when I try to look toward the future they punished me for it. That’s what makes me mad. High school is supposed to prepare you for the future yet the Academic Dean punishes you for it

Posted: June 4, 2018

You can literally not do anything all year and turn everything in and get an A. Most students fail out of college.

Posted: June 4, 2018

Some teachers are effective others aren’t. Some I’ve learned a lot while others can be coasted.

Posted: June 4, 2018

Not sure about this aspect of teaching.

Posted: June 4, 2018

They basically allow fights to happen and punish both sides even if one doesn’t do anything.

Posted: September 14, 2015

I am a student attending this school and am currently in my junior year with ap classes and all and i would like to say that if you really want your child to go to college than this school is for you. They have a great community and a safe eviroment. Not to mention the great teachers they have that work with the students in every way and are very very helpful. The only two downsides to this school are ,one, the lunches are pretty dang expensive and ,two, the people in the attendance office, have some serious attitude issues. They really , really need to hire some nice people to take care of students attendance. Remember, they can put in whatever they want as your attendance and they can get you to court(it is illegal but still) al in all this school is one of the best schools i have ever attended

Posted: August 12, 2015

Posted: August 12, 2015

Posted: August 12, 2015

Posted: August 12, 2015

We are very happy for our son to attend this school. All of the educators, counselors, and staff are committed to the students' success. The environment is positive, encouraging, and safe. There are activities and clubs for a wide range of interests, and they highly encourage academic excellence.

Posted: February 12, 2015

I've never seen my child happier. The school has such a variety of students that it has been easy to find friends as we are new to the area. Also, the school's overall attitude towards college preparedness is great. The opportunity for AP and pre-AP classes are numerous and all the teachers we have encountered have been excellent.

Posted: August 5, 2014

Awesome school with great teachers, staff and students! Brennan is a one of a kind school were teachers try there best to understand you and help you . They never give up on you till you succeed

Posted: April 28, 2014

My daughter and I love the school. She started at Brennan as a freshman when they first opened their doors and now she will be graduating this year 2014!!! She is interested in med school when she moves on to college and at Brennan they have helped her tremendously understanding the medical field and even experience rotations in the hospital atmosphere. The staff at Brennan are very helpful and firm about following rules. This is a great High school to attend

Posted: March 31, 2014

Both of my children had wonderful public school experiences across several states because we are a military family. We were blessed to come to Brennan when it opened its doors in 2010, graduated one in their first graduating class in 2012, and now graduating a first four-year-Bear in 2014 Brennan High School has been an incredibly positive experience for my children. My son came in looking for academic rigor to prepare him for engineering and he found, not only the classes he needed, but also teachers who cared about him and encouraged him personally along his way. They ask about him still and want to know what he is up to in the wide world. My daughter came to Brennan shy and a bit unnerved about high school in a new town. In these 4 years she has grown and matured and found her career path and passion. Her teachers and administrators have taken personal interest in her and her choices and are encouraging her to take on great things when she leaves. As a brand new school in 2010, Brennan has outstanding facilities and I think the entire school body is doing a good job of taking care of things. Our family's experience at Brennan has been top notch! Highly, highly recommend.

Posted: September 27, 2013

My child was new to Brennan this year. The students and teachers have been very friendly and wonderful. she loves going to school here and is exceeding in her classes. The only reason I didn't vote a 5 is because of the attendance office. I have been in on 3 different occasions this year and have received the same treatment. I believe the ladies in there could use an attitude adjustment, communication skills, and etiquette couldn't help either. Thanks so much for being a wonderful school for my child to come to

Posted: September 22, 2013

if I could give it less stars I WOULD! The administration at this school is beyond ridiculous. Youve got people in principal and vice principal that are horrible when it comes to communication. You try to talk to them and they just talk at you. The attendance system is ridiculous and you have to stay on top of your "parent portal" because they eill mark your child absent and then your child has to argue with the teacher to have it removed. If they get three they send you a "warning" notice making you have to scrable to get the absences that are false corrected or youll end up in court. They had to fire the attendance clerk last year because she was not entering the notes and several kids ended up in court for absences that were fraudulent! Talk about a WASTE OF TAX PAYER MONEY..... the teachers use swear words and try and be "cool" with the kids. I personally cant wait to move just to get away from this school!

Posted: September 16, 2013

Great school, in a great school district. My son went there before we got another military assignment, and he loved it. The staff and teachers were fabulous, really care about the kids and went the extra mile. They really push AP classes and set the kids up to be college ready.If we didn't have to leave I would have been proud to have had 2 Brennan grads.

Posted: October 3, 2012

The kids love the school, because of the teachers!! the teachers are amazing.... the attendance staff have power trip issues!! SERIOUS power trip issues!! The sweet woman that sits at the back desk is the on ya wanna deal with if you go in. shes nice, the hispanic one.... watch out!! watch yiur back with her!! getting enrolled is a pain!! on paper it seems like angiod process but be prepared to spend the day there cause NO INE truly knows what they're doin!! Even a teacher told me she had a heck of a time getting her child enrolled and she works there! The students there are ok, there have been several fights since my kids have started. Kids in the hallways push and shove their way through the crowds and my daughter was shoved on the stairway. Vice principal T ..... Wow!! Talk about a power tripper!! He should NOT be working with kids!! With his mentality he should be working at a continuation school or in a prison. No communication skills AT ALL! He is rude and Harsh! He told my son to be at the school at a particular time frame (8-8:15)to get his parking pass, he was there.... low and behold VP T and his staff DID NOT SHOW UP TIL 8:20!!! The blonde in the first office..RUDE!

Posted: September 26, 2012

Wonderful school and faculty, GREAT band!!! I'm happy to say my son gets to spend his high school years at this school.

Posted: March 23, 2011

As a parent of a student I would like to express my overall positive experience with the administration less the vice principal. This vice principal has much to be desired in the way of communication and is abrasive to say the least. One would think the school district would hire people with communication skills.

Reviews provided by GreatSchools

# Name Type City State Overall Rating Distance
1 Alamo Ranch Neighborhood/Subdivision San Antonio TX 0.8 mi
2 Sierra Springs Neighborhood/Subdivision San Antonio TX 1.9 mi
3 Laura Heights Neighborhood/Subdivision San Antonio TX 5.2 mi
4 Villas at Medical Center Apartment Complex San Antonio TX 8.7 mi
5 Alamo Heights Neighborhood/Subdivision San Antonio TX 15.4 mi
6 Stone Oak Neighborhood/Subdivision San Antonio TX 18.7 mi
7 Oak Hollow Park Neighborhood/Subdivision San Antonio TX 19 mi
8 Bulverde Oaks Apartment Complex San Antonio TX 21.8 mi
9 Spring Creek Neighborhood/Subdivision San Antonio TX 22.4 mi
10 Indian Springs Neighborhood/Subdivision San Antonio TX 23.8 mi
11 Springs at Live Oak Apartments Apartment Complex Live Oak TX 24.9 mi
12 Glenwood Neighborhood/Subdivision Bulverde TX 25.3 mi
13 Springwood Subdivision Neighborhood/Subdivision Universal City TX 25.5 mi
14 Live Oak Neighborhood/Subdivision San Antonio TX 26 mi
15 Garden ridge Neighborhood/Subdivision San Antonio TX 28 mi
16 Berry Creek Neighborhood/Subdivision Schertz TX 28.7 mi
17 The Crossvine Neighborhood/Subdivision Schertz TX 29 mi
18 Charleston Parke Neighborhood/Subdivision Cibolo TX 30.1 mi
# Name City State Overall Rating Distance
1 Northwest I-151 (Seaworld Area) San Antonio TX 4.5 mi
2 Helotes Helotes TX 7.6 mi
3 San Antonio Riverwalk San Antonio TX 14.6 mi
4 The Pearl San Antonio TX 14.7 mi
5 Lytle Lytle TX 16.1 mi
6 Glenwood Bulverde TX 25.2 mi
7 Cibolo, Schertz area Cibolo TX 30.2 mi
Base Distance
Lackland AFB 8.1 mi.
Kelly Field 9.5 mi.
Fort Sam Houston 17.7 mi.
Randolph AFB 27 mi.
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