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Brennan High School

Public Grades 9-12
567th
SchoolDigger Rank ?
of 2,009 Texas High Schools
Better than 72% of Texas high schools
Summary

Brennan High School in San Antonio, TX, is a large public high school serving 2,965 students in grades 9-12 within the Northside Independent School District (Isd), and it stands out for its exceptional graduation rate of 98.7% and consistent academic performance in subjects like Biology, English, and U.S. History, though it faces a notable challenge with Algebra I proficiency.

Brennan is a high-performing school that excels at preparing students for graduation, with a dropout rate of just 0.2%—far better than the district average. It consistently scores above district and state averages in core subjects like Biology (78.67% proficient) and English I (67.99% proficient), and it is particularly effective at supporting its Hispanic and African American students, ranking in the top 25-30% of the state for these groups. However, the school has a persistent weakness in Algebra I, with proficiency rates hovering around 24% in recent years, which is the lowest among nearby schools like Harlan High School (46.26%) and Taft High School (36.97%). This contrast suggests a need for targeted math support, as Algebra I is a gateway to higher-level math and college readiness.

Compared to its "sister schools" in the area—Sotomayor High School and Harlan—Brennan leads in English I and Biology but lags in Algebra I, highlighting distinct instructional strengths. The school also operates efficiently, with a student-teacher ratio of 17:1 and lower per-student spending ($7,989) than many peers, achieving strong results with a lean budget. However, there is a concerning trend for Gifted and Talented students, whose performance dropped to the 45th percentile, suggesting a need to refocus on challenging its highest-achieving learners. Overall, Brennan is a solid choice for families seeking a school with high graduation rates and strong literacy-based academics, but parents should be aware of the Algebra I gap and consider how the school supports advanced students.

2,965
Students ?
17.0
Student/teacher ratio ?
$8,442
Per pupil spending ?
33.6%
Free/discounted lunch ?
 2400 Cottonwood Way
       San Antonio, TX  78253

(210) 398-1250

District: Northside Independent School District (Isd)


Feeder schools for Brennan High School:

Elementary:    Behlau Elementary
    Galm Elementary
    Lieck Elementary
    Mora Elementary
    More...
Middle:    Luna Middle
Racial breakdown:

Hispanic:
62.8%
White:
15.2%
African American:
13.7%
more
 See top rated Texas high schools

 Compare Brennan High School to nearby high schools!
At a glance
Ranking trend: Holding steady — 76th percentile in 2016 → 72nd in 2026
Strengths
Test scores above the Texas average (68% vs 62% meeting standards)
99% graduate within 4 years
Above the Texas median (72nd percentile)
Worth a look
!Some student groups rank well below the school's overall statewide standing
!Algebra I scores 30 pts below the Texas average
Students meeting standards (2025-2026) ?
This school68%
District avg67%
Texas avg62%
567th of 2,009
Texas public high schools ?
Top 28%▼ down 4 pts since 2016
From top 24% (2016) to top 28% (2026)
See the entire ranking list of Texas High Schools →
SchoolDigger rating ?
7th of 13High Schools in the Northside Independent School District (Isd)
475th of 951Northside Independent School District (Isd) among Texas districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankTexas percentileRating
202664.1567 of 200971.8%★★★★☆
202564.4566 of 197471.3%★★★★☆
202464.7564 of 199071.7%★★★★☆
202360.3671 of 196165.8%★★★☆☆
202260.2596 of 187668.2%★★★☆☆
202162.3593 of 186168.1%★★★☆☆
201972.0329 of 185782.3%★★★★☆
201867.3399 of 179777.8%★★★★☆
201770.2346 of 177780.5%★★★★☆
201668.6421 of 176276.1%★★★★☆
201569.6412 of 174376.4%★★★★☆
201473.6291 of 173483.2%★★★★☆
201371.7319 of 165280.7%★★★★☆
201274.4173 of 160389.2%★★★★☆
201166.7526 of 167268.5%★★★☆☆

African American

YearAvg scoreStatewide rankTexas percentileRating
202661.8302 of 108672.2%★★★★☆
202565.5181 of 83478.3%★★★★☆
202467.2231 of 106578.3%★★★★☆
202365.5256 of 106976.1%★★★★☆
202268.0217 of 103179.0%★★★★☆
202170.3214 of 102079.0%★★★★☆
201969.8224 of 102478.1%★★★★☆
201872.8186 of 101381.6%★★★★☆

Asian

YearAvg scoreStatewide rankTexas percentileRating
202673.2119 of 55678.6%★★★★☆
202558.4184 of 42857.0%★★★☆☆
202457.2248 of 53053.2%★★★☆☆
202356.0258 of 52550.9%★★★☆☆
202253.3260 of 50748.7%★★☆☆☆
202156.0230 of 48852.9%★★★☆☆
201965.3164 of 48766.3%★★★☆☆
201865.4173 of 48664.4%★★★☆☆

At Risk

YearAvg scoreStatewide rankTexas percentileRating
202265.0357 of 183780.6%★★★★☆
202144.9863 of 182952.8%★★★☆☆
201975.1217 of 181088.0%★★★★☆
201863.9355 of 178480.1%★★★★☆

English Language Learner

YearAvg scoreStatewide rankTexas percentileRating
202650.1477 of 119560.1%★★★☆☆
202548.9405 of 115364.9%★★★☆☆
202454.3415 of 143771.1%★★★★☆
202352.9439 of 137168.0%★★★☆☆
202257.9312 of 127875.6%★★★★☆
202161.4275 of 119577.0%★★★★☆
201956.2326 of 113671.3%★★★★☆
201849.8376 of 111366.2%★★★☆☆

Female

YearAvg scoreStatewide rankTexas percentileRating
202663.5548 of 193671.7%★★★★☆
202556.7524 of 150465.2%★★★☆☆
202458.9634 of 188066.3%★★★☆☆
202361.1621 of 189167.2%★★★☆☆
202263.5514 of 184172.1%★★★★☆
202162.9575 of 181568.3%★★★☆☆
201971.6357 of 179880.1%★★★★☆
201869.3384 of 178178.4%★★★★☆

Gifted and Talented

YearAvg scoreStatewide rankTexas percentileRating
202658.4661 of 120645.2%★★☆☆☆
202566.5346 of 96464.1%★★★☆☆
202362.6566 of 118252.1%★★★☆☆
202264.3484 of 117258.7%★★★☆☆
202164.7521 of 117755.7%★★★☆☆
201969.0340 of 114570.3%★★★★☆
201863.8498 of 113756.2%★★★☆☆

Hispanic

YearAvg scoreStatewide rankTexas percentileRating
202665.3432 of 186076.8%★★★★☆
202560.6388 of 145373.3%★★★★☆
202460.8477 of 180573.6%★★★★☆
202362.6497 of 182072.7%★★★★☆
202259.8509 of 176271.1%★★★★☆
202164.2460 of 174373.6%★★★★☆
201972.6293 of 171482.9%★★★★☆
201867.8350 of 169179.3%★★★★☆

Low Socio Economic Status

YearAvg scoreStatewide rankTexas percentileRating
202660.0541 of 193772.1%★★★★☆
202557.2418 of 151372.4%★★★★☆
202453.0668 of 188464.5%★★★☆☆
202353.5705 of 189762.8%★★★☆☆
202251.4731 of 184760.4%★★★☆☆
202157.0622 of 184866.3%★★★☆☆
201972.6261 of 181885.6%★★★★☆
201863.0410 of 179477.1%★★★★☆

Male

YearAvg scoreStatewide rankTexas percentileRating
202661.0613 of 195468.6%★★★☆☆
202560.0451 of 151570.2%★★★★☆
202457.8629 of 189166.7%★★★☆☆
202357.0675 of 191364.7%★★★☆☆
202253.7721 of 185361.1%★★★☆☆
202158.7634 of 184065.5%★★★☆☆
201969.0376 of 182479.4%★★★★☆
201862.7493 of 180372.7%★★★★☆

Multi-racial

YearAvg scoreStatewide rankTexas percentileRating
202664.1218 of 71369.4%★★★☆☆
202562.3177 of 59870.4%★★★★☆
202456.8270 of 73163.1%★★★☆☆
202356.9245 of 67763.8%★★★☆☆
202247.6310 of 66453.3%★★★☆☆
202154.9241 of 58859.0%★★★☆☆
201975.8115 of 60481.0%★★★★☆
201849.8278 of 58252.2%★★★☆☆

Pacific Islander

YearAvg scoreStatewide rankTexas percentileRating
202463.111 of 2860.7%★★★☆☆
202361.312 of 3161.3%★★★☆☆
202285.07 of 3177.4%★★★★☆
201996.32 of 3494.1%★★★★★
201821.530 of 3411.8%★☆☆☆☆

Special Education

YearAvg scoreStatewide rankTexas percentileRating
202652.0563 of 158164.4%★★★☆☆
202561.8314 of 129975.8%★★★★☆
202460.7408 of 154873.6%★★★★☆
202367.4277 of 147881.3%★★★★☆
202259.7358 of 141874.8%★★★★☆
202151.7488 of 138264.7%★★★☆☆
201981.3123 of 135790.9%★★★★★
201862.0305 of 134777.4%★★★★☆

White

YearAvg scoreStatewide rankTexas percentileRating
202662.2507 of 158468.0%★★★☆☆
202559.4411 of 129468.2%★★★☆☆
202458.0541 of 155665.2%★★★☆☆
202360.2553 of 157664.9%★★★☆☆
202263.1436 of 152571.4%★★★★☆
202154.9640 of 151057.6%★★★☆☆
201970.7322 of 152678.9%★★★★☆
201868.2352 of 153977.1%★★★★☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
At Risk (2022)81st percentile+12 vs school
Asian (2026)79th percentile+7 vs school
Hispanic (2026)77th percentile+5 vs school
African American (2026)72nd percentile~ school
Low Socio Economic Status (2026)72nd percentile~ school
Female (2026)72nd percentile~ school
Multi-racial (2026)69th percentile~ school
Male (2026)69th percentile-3 vs school
White (2026)68th percentile-4 vs school
Special Education (2026)64th percentile-7 vs school
Pacific Islander (2024)61st percentile-11 vs school
English Language Learner (2026)60th percentile-12 vs school
Gifted and Talented (2026)45th percentile-27 vs school
By subject vs Texas (2025-2026) ?
U.S. History82%+12 vs state
Biology79%+8 vs state
English II Reading69%+9 vs state
English I Reading68%+13 vs state
Algebra I24%-30 vs state

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Frequently Asked Questions about Brennan High School

Students at Brennan High School are 63% Hispanic, 15% White, 14% African American, 5% Two or more races, 3% Asian.

Brennan High School is fed by the following schools:

Elementary : Behlau Elementary
Elementary : Galm Elementary
Elementary : Lieck Elementary
Elementary : Mora Elementary
Elementary : Ott Elementary
Middle : Luna Middle

In the 2024-25 school year, 2,965 students attended Brennan High School.

Brennan High School ranks 567th of 2009 Texas high schools. SchoolDigger rates this school 4 stars out of 5.


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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Texas Education Agency.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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